./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/test-easy10.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b6151a-ccef-4cee-96fb-ff1d380c5160/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b6151a-ccef-4cee-96fb-ff1d380c5160/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b6151a-ccef-4cee-96fb-ff1d380c5160/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b6151a-ccef-4cee-96fb-ff1d380c5160/bin/utaipan-ByfvJB40ur/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/test-easy10.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b6151a-ccef-4cee-96fb-ff1d380c5160/bin/utaipan-ByfvJB40ur/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b6151a-ccef-4cee-96fb-ff1d380c5160/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5b38e7cb0150abfd3f300ad6ccdd66bb35d80de0668e553c35b4b9d13b84c85b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:46:41,733 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:46:41,735 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:46:41,759 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:46:41,760 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:46:41,761 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:46:41,763 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:46:41,765 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:46:41,768 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:46:41,769 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:46:41,770 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:46:41,772 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:46:41,773 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:46:41,774 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:46:41,776 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:46:41,778 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:46:41,779 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:46:41,780 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:46:41,783 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:46:41,785 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:46:41,787 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:46:41,796 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:46:41,798 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:46:41,799 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:46:41,804 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:46:41,805 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:46:41,805 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:46:41,806 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:46:41,807 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:46:41,809 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:46:41,809 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:46:41,822 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:46:41,823 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:46:41,824 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:46:41,826 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:46:41,826 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:46:41,827 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:46:41,828 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:46:41,828 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:46:41,829 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:46:41,830 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:46:41,834 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b6151a-ccef-4cee-96fb-ff1d380c5160/bin/utaipan-ByfvJB40ur/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-26 00:46:41,896 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:46:41,896 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:46:41,897 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:46:41,897 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:46:41,898 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:46:41,899 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:46:41,899 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:46:41,900 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:46:41,900 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:46:41,900 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:46:41,902 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:46:41,902 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:46:41,903 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:46:41,903 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:46:41,903 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:46:41,904 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:46:41,904 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:46:41,904 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:46:41,906 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-26 00:46:41,906 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-26 00:46:41,907 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:46:41,907 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:46:41,907 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:46:41,908 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:46:41,908 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:46:41,908 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:46:41,909 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-26 00:46:41,909 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-26 00:46:41,910 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-26 00:46:41,910 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:46:41,910 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-26 00:46:41,911 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:46:41,911 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:46:41,911 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:46:41,912 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:46:41,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:46:41,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:46:41,913 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:46:41,913 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:46:41,914 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:46:41,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:46:41,914 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:46:41,915 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b6151a-ccef-4cee-96fb-ff1d380c5160/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b6151a-ccef-4cee-96fb-ff1d380c5160/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b38e7cb0150abfd3f300ad6ccdd66bb35d80de0668e553c35b4b9d13b84c85b [2022-11-26 00:46:42,291 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:46:42,321 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:46:42,324 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:46:42,327 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:46:42,328 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:46:42,329 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b6151a-ccef-4cee-96fb-ff1d380c5160/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/weaver/test-easy10.wvr.c [2022-11-26 00:46:45,457 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:46:45,744 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:46:45,746 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b6151a-ccef-4cee-96fb-ff1d380c5160/sv-benchmarks/c/weaver/test-easy10.wvr.c [2022-11-26 00:46:45,758 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b6151a-ccef-4cee-96fb-ff1d380c5160/bin/utaipan-ByfvJB40ur/data/2a7eb1fa1/84b75df6572d4396aa56e57760371a3e/FLAG54adac881 [2022-11-26 00:46:45,780 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b6151a-ccef-4cee-96fb-ff1d380c5160/bin/utaipan-ByfvJB40ur/data/2a7eb1fa1/84b75df6572d4396aa56e57760371a3e [2022-11-26 00:46:45,784 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:46:45,788 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:46:45,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:46:45,795 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:46:45,800 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:46:45,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:46:45" (1/1) ... [2022-11-26 00:46:45,803 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63d737a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:46:45, skipping insertion in model container [2022-11-26 00:46:45,803 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:46:45" (1/1) ... [2022-11-26 00:46:45,812 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:46:45,855 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:46:46,018 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:46:46,020 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:46:46,020 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:46:46,021 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:46:46,021 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:46:46,022 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:46:46,022 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:46:46,023 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:46:46,024 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:46:46,024 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:46:46,025 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:46:46,025 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:46:46,027 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:46:46,028 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:46:46,028 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:46:46,029 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:46:46,029 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:46:46,030 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:46:46,030 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:46:46,031 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:46:46,031 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:46:46,032 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:46:46,033 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:46:46,033 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:46:46,034 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:46:46,035 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:46:46,035 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:46:46,036 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:46:46,036 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:46:46,037 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:46:46,037 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:46:46,038 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:46:46,038 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:46:46,039 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:46:46,039 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:46:46,039 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:46:46,040 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:46:46,041 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:46:46,041 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:46:46,042 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:46:46,042 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:46:46,043 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:46:46,043 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:46:46,044 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:46:46,044 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:46:46,045 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:46:46,045 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:46:46,046 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:46:46,055 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b6151a-ccef-4cee-96fb-ff1d380c5160/sv-benchmarks/c/weaver/test-easy10.wvr.c[3907,3920] [2022-11-26 00:46:46,065 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:46:46,077 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:46:46,106 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:46:46,108 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:46:46,109 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:46:46,110 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:46:46,110 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:46:46,111 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:46:46,111 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:46:46,112 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:46:46,113 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:46:46,115 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:46:46,116 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:46:46,117 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:46:46,118 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:46:46,123 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:46:46,124 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:46:46,129 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:46:46,130 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:46:46,131 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:46:46,131 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:46:46,134 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:46:46,135 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:46:46,137 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:46:46,137 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:46:46,138 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:46:46,141 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:46:46,153 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:46:46,154 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:46:46,154 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:46:46,155 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:46:46,155 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:46:46,155 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:46:46,156 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:46:46,156 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:46:46,157 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:46:46,157 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:46:46,158 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:46:46,159 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:46:46,164 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:46:46,165 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:46:46,165 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:46:46,165 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:46:46,166 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:46:46,166 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:46:46,167 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:46:46,167 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:46:46,168 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:46:46,168 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:46:46,169 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:46:46,181 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b6151a-ccef-4cee-96fb-ff1d380c5160/sv-benchmarks/c/weaver/test-easy10.wvr.c[3907,3920] [2022-11-26 00:46:46,186 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:46:46,213 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:46:46,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:46:46 WrapperNode [2022-11-26 00:46:46,215 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:46:46,217 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:46:46,218 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:46:46,218 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:46:46,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:46:46" (1/1) ... [2022-11-26 00:46:46,259 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:46:46" (1/1) ... [2022-11-26 00:46:46,316 INFO L138 Inliner]: procedures = 23, calls = 84, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 188 [2022-11-26 00:46:46,317 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:46:46,318 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:46:46,318 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:46:46,319 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:46:46,330 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:46:46" (1/1) ... [2022-11-26 00:46:46,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:46:46" (1/1) ... [2022-11-26 00:46:46,350 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:46:46" (1/1) ... [2022-11-26 00:46:46,350 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:46:46" (1/1) ... [2022-11-26 00:46:46,356 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:46:46" (1/1) ... [2022-11-26 00:46:46,370 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:46:46" (1/1) ... [2022-11-26 00:46:46,372 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:46:46" (1/1) ... [2022-11-26 00:46:46,374 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:46:46" (1/1) ... [2022-11-26 00:46:46,377 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:46:46,384 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:46:46,384 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:46:46,384 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:46:46,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:46:46" (1/1) ... [2022-11-26 00:46:46,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:46:46,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b6151a-ccef-4cee-96fb-ff1d380c5160/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:46:46,432 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b6151a-ccef-4cee-96fb-ff1d380c5160/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:46:46,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b6151a-ccef-4cee-96fb-ff1d380c5160/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:46:46,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:46:46,487 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-26 00:46:46,487 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-26 00:46:46,487 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-26 00:46:46,487 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-26 00:46:46,488 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-26 00:46:46,488 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-26 00:46:46,488 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-26 00:46:46,488 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-26 00:46:46,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:46:46,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:46:46,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:46:46,499 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-26 00:46:46,499 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-26 00:46:46,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:46:46,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:46:46,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:46:46,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:46:46,504 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-26 00:46:46,683 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:46:46,686 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:46:47,079 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:46:47,192 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:46:47,192 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:46:47,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:46:47 BoogieIcfgContainer [2022-11-26 00:46:47,196 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:46:47,198 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:46:47,198 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:46:47,203 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:46:47,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:46:45" (1/3) ... [2022-11-26 00:46:47,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d0bbc1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:46:47, skipping insertion in model container [2022-11-26 00:46:47,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:46:46" (2/3) ... [2022-11-26 00:46:47,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d0bbc1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:46:47, skipping insertion in model container [2022-11-26 00:46:47,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:46:47" (3/3) ... [2022-11-26 00:46:47,207 INFO L112 eAbstractionObserver]: Analyzing ICFG test-easy10.wvr.c [2022-11-26 00:46:47,236 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:46:47,237 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-26 00:46:47,237 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-26 00:46:47,426 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-26 00:46:47,494 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-26 00:46:47,516 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 169 places, 158 transitions, 348 flow [2022-11-26 00:46:47,527 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 169 places, 158 transitions, 348 flow [2022-11-26 00:46:47,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 169 places, 158 transitions, 348 flow [2022-11-26 00:46:47,676 INFO L130 PetriNetUnfolder]: 2/154 cut-off events. [2022-11-26 00:46:47,676 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-26 00:46:47,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 154 events. 2/154 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 132 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 104. Up to 2 conditions per place. [2022-11-26 00:46:47,685 INFO L119 LiptonReduction]: Number of co-enabled transitions 2336 [2022-11-26 00:46:56,412 INFO L134 LiptonReduction]: Checked pairs total: 9064 [2022-11-26 00:46:56,412 INFO L136 LiptonReduction]: Total number of compositions: 140 [2022-11-26 00:46:56,423 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 68 places, 55 transitions, 142 flow [2022-11-26 00:46:56,666 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3747 states, 3729 states have (on average 3.720568517028694) internal successors, (13874), 3746 states have internal predecessors, (13874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:46:56,695 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:46:56,705 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@440c74b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:46:56,705 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-11-26 00:46:56,724 INFO L276 IsEmpty]: Start isEmpty. Operand has 3747 states, 3729 states have (on average 3.720568517028694) internal successors, (13874), 3746 states have internal predecessors, (13874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:46:56,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-26 00:46:56,739 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:46:56,739 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-26 00:46:56,740 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:46:56,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:46:56,749 INFO L85 PathProgramCache]: Analyzing trace with hash 603, now seen corresponding path program 1 times [2022-11-26 00:46:56,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:46:56,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988501254] [2022-11-26 00:46:56,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:46:56,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:46:56,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:46:56,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:46:56,964 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:46:56,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988501254] [2022-11-26 00:46:56,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988501254] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:46:56,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:46:56,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-26 00:46:56,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445249013] [2022-11-26 00:46:56,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:46:56,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:46:56,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:46:57,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:46:57,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:46:57,025 INFO L87 Difference]: Start difference. First operand has 3747 states, 3729 states have (on average 3.720568517028694) internal successors, (13874), 3746 states have internal predecessors, (13874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:46:57,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:46:57,259 INFO L93 Difference]: Finished difference Result 3744 states and 13871 transitions. [2022-11-26 00:46:57,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:46:57,262 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-26 00:46:57,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:46:57,312 INFO L225 Difference]: With dead ends: 3744 [2022-11-26 00:46:57,312 INFO L226 Difference]: Without dead ends: 3744 [2022-11-26 00:46:57,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:46:57,317 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:46:57,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:46:57,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3744 states. [2022-11-26 00:46:57,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3744 to 3744. [2022-11-26 00:46:57,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3744 states, 3729 states have (on average 3.71976401179941) internal successors, (13871), 3743 states have internal predecessors, (13871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:46:57,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3744 states to 3744 states and 13871 transitions. [2022-11-26 00:46:57,594 INFO L78 Accepts]: Start accepts. Automaton has 3744 states and 13871 transitions. Word has length 1 [2022-11-26 00:46:57,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:46:57,594 INFO L495 AbstractCegarLoop]: Abstraction has 3744 states and 13871 transitions. [2022-11-26 00:46:57,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:46:57,596 INFO L276 IsEmpty]: Start isEmpty. Operand 3744 states and 13871 transitions. [2022-11-26 00:46:57,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-26 00:46:57,596 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:46:57,596 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-26 00:46:57,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:46:57,597 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:46:57,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:46:57,598 INFO L85 PathProgramCache]: Analyzing trace with hash 592173, now seen corresponding path program 1 times [2022-11-26 00:46:57,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:46:57,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66688595] [2022-11-26 00:46:57,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:46:57,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:46:57,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:46:58,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:46:58,223 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:46:58,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66688595] [2022-11-26 00:46:58,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66688595] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:46:58,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:46:58,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 00:46:58,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329102373] [2022-11-26 00:46:58,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:46:58,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:46:58,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:46:58,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:46:58,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:46:58,227 INFO L87 Difference]: Start difference. First operand 3744 states and 13871 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:46:58,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:46:58,366 INFO L93 Difference]: Finished difference Result 3614 states and 13437 transitions. [2022-11-26 00:46:58,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:46:58,367 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-26 00:46:58,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:46:58,401 INFO L225 Difference]: With dead ends: 3614 [2022-11-26 00:46:58,402 INFO L226 Difference]: Without dead ends: 3614 [2022-11-26 00:46:58,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:46:58,403 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 43 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:46:58,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 4 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:46:58,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3614 states. [2022-11-26 00:46:58,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3614 to 3614. [2022-11-26 00:46:58,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3614 states, 3601 states have (on average 3.7314634823660096) internal successors, (13437), 3613 states have internal predecessors, (13437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:46:58,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3614 states to 3614 states and 13437 transitions. [2022-11-26 00:46:58,667 INFO L78 Accepts]: Start accepts. Automaton has 3614 states and 13437 transitions. Word has length 3 [2022-11-26 00:46:58,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:46:58,668 INFO L495 AbstractCegarLoop]: Abstraction has 3614 states and 13437 transitions. [2022-11-26 00:46:58,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:46:58,668 INFO L276 IsEmpty]: Start isEmpty. Operand 3614 states and 13437 transitions. [2022-11-26 00:46:58,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-26 00:46:58,669 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:46:58,669 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-26 00:46:58,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:46:58,670 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:46:58,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:46:58,671 INFO L85 PathProgramCache]: Analyzing trace with hash 592175, now seen corresponding path program 1 times [2022-11-26 00:46:58,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:46:58,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335250860] [2022-11-26 00:46:58,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:46:58,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:46:58,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:46:58,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:46:58,964 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:46:58,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335250860] [2022-11-26 00:46:58,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335250860] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:46:58,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:46:58,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 00:46:58,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325361570] [2022-11-26 00:46:58,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:46:58,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:46:58,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:46:58,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:46:58,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:46:58,971 INFO L87 Difference]: Start difference. First operand 3614 states and 13437 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:46:59,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:46:59,103 INFO L93 Difference]: Finished difference Result 3484 states and 13003 transitions. [2022-11-26 00:46:59,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:46:59,103 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-26 00:46:59,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:46:59,132 INFO L225 Difference]: With dead ends: 3484 [2022-11-26 00:46:59,132 INFO L226 Difference]: Without dead ends: 3484 [2022-11-26 00:46:59,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:46:59,136 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 41 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:46:59,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 4 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:46:59,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3484 states. [2022-11-26 00:46:59,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3484 to 3484. [2022-11-26 00:46:59,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3484 states, 3473 states have (on average 3.7440253383242155) internal successors, (13003), 3483 states have internal predecessors, (13003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:46:59,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3484 states to 3484 states and 13003 transitions. [2022-11-26 00:46:59,361 INFO L78 Accepts]: Start accepts. Automaton has 3484 states and 13003 transitions. Word has length 3 [2022-11-26 00:46:59,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:46:59,362 INFO L495 AbstractCegarLoop]: Abstraction has 3484 states and 13003 transitions. [2022-11-26 00:46:59,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:46:59,362 INFO L276 IsEmpty]: Start isEmpty. Operand 3484 states and 13003 transitions. [2022-11-26 00:46:59,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-26 00:46:59,363 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:46:59,363 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-26 00:46:59,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:46:59,363 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:46:59,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:46:59,364 INFO L85 PathProgramCache]: Analyzing trace with hash 569092996, now seen corresponding path program 1 times [2022-11-26 00:46:59,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:46:59,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858509771] [2022-11-26 00:46:59,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:46:59,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:46:59,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:46:59,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:46:59,487 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:46:59,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858509771] [2022-11-26 00:46:59,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858509771] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:46:59,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:46:59,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 00:46:59,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402646167] [2022-11-26 00:46:59,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:46:59,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:46:59,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:46:59,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:46:59,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:46:59,497 INFO L87 Difference]: Start difference. First operand 3484 states and 13003 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:46:59,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:46:59,673 INFO L93 Difference]: Finished difference Result 3434 states and 12873 transitions. [2022-11-26 00:46:59,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:46:59,673 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-26 00:46:59,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:46:59,728 INFO L225 Difference]: With dead ends: 3434 [2022-11-26 00:46:59,728 INFO L226 Difference]: Without dead ends: 3434 [2022-11-26 00:46:59,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:46:59,731 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 37 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:46:59,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 4 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:46:59,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3434 states. [2022-11-26 00:46:59,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3434 to 3434. [2022-11-26 00:46:59,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3434 states, 3425 states have (on average 3.7585401459854015) internal successors, (12873), 3433 states have internal predecessors, (12873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:46:59,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3434 states to 3434 states and 12873 transitions. [2022-11-26 00:46:59,884 INFO L78 Accepts]: Start accepts. Automaton has 3434 states and 12873 transitions. Word has length 5 [2022-11-26 00:46:59,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:46:59,885 INFO L495 AbstractCegarLoop]: Abstraction has 3434 states and 12873 transitions. [2022-11-26 00:46:59,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:46:59,885 INFO L276 IsEmpty]: Start isEmpty. Operand 3434 states and 12873 transitions. [2022-11-26 00:46:59,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-26 00:46:59,886 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:46:59,886 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-26 00:46:59,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 00:46:59,887 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:46:59,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:46:59,887 INFO L85 PathProgramCache]: Analyzing trace with hash 569092997, now seen corresponding path program 1 times [2022-11-26 00:46:59,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:46:59,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773017196] [2022-11-26 00:46:59,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:46:59,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:46:59,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:47:00,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:47:00,101 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:47:00,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773017196] [2022-11-26 00:47:00,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773017196] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:47:00,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:47:00,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 00:47:00,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961488193] [2022-11-26 00:47:00,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:47:00,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:47:00,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:47:00,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:47:00,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:47:00,104 INFO L87 Difference]: Start difference. First operand 3434 states and 12873 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:00,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:47:00,221 INFO L93 Difference]: Finished difference Result 3384 states and 12743 transitions. [2022-11-26 00:47:00,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:47:00,222 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-26 00:47:00,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:47:00,246 INFO L225 Difference]: With dead ends: 3384 [2022-11-26 00:47:00,246 INFO L226 Difference]: Without dead ends: 3384 [2022-11-26 00:47:00,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:47:00,247 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 35 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:47:00,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 4 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:47:00,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3384 states. [2022-11-26 00:47:00,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3384 to 3384. [2022-11-26 00:47:00,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3384 states, 3377 states have (on average 3.7734675747705064) internal successors, (12743), 3383 states have internal predecessors, (12743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:00,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3384 states to 3384 states and 12743 transitions. [2022-11-26 00:47:00,466 INFO L78 Accepts]: Start accepts. Automaton has 3384 states and 12743 transitions. Word has length 5 [2022-11-26 00:47:00,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:47:00,467 INFO L495 AbstractCegarLoop]: Abstraction has 3384 states and 12743 transitions. [2022-11-26 00:47:00,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:00,467 INFO L276 IsEmpty]: Start isEmpty. Operand 3384 states and 12743 transitions. [2022-11-26 00:47:00,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-26 00:47:00,468 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:47:00,468 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:47:00,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-26 00:47:00,469 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:47:00,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:47:00,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1437535326, now seen corresponding path program 1 times [2022-11-26 00:47:00,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:47:00,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914412909] [2022-11-26 00:47:00,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:47:00,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:47:00,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:47:00,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:47:00,537 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:47:00,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914412909] [2022-11-26 00:47:00,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914412909] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:47:00,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:47:00,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 00:47:00,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196605549] [2022-11-26 00:47:00,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:47:00,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:47:00,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:47:00,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:47:00,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:47:00,540 INFO L87 Difference]: Start difference. First operand 3384 states and 12743 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:00,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:47:00,660 INFO L93 Difference]: Finished difference Result 3254 states and 12309 transitions. [2022-11-26 00:47:00,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:47:00,661 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-26 00:47:00,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:47:00,683 INFO L225 Difference]: With dead ends: 3254 [2022-11-26 00:47:00,683 INFO L226 Difference]: Without dead ends: 3254 [2022-11-26 00:47:00,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:47:00,684 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 31 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:47:00,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 4 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:47:00,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3254 states. [2022-11-26 00:47:00,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3254 to 3254. [2022-11-26 00:47:00,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3254 states, 3249 states have (on average 3.788550323176362) internal successors, (12309), 3253 states have internal predecessors, (12309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:00,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3254 states to 3254 states and 12309 transitions. [2022-11-26 00:47:00,876 INFO L78 Accepts]: Start accepts. Automaton has 3254 states and 12309 transitions. Word has length 7 [2022-11-26 00:47:00,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:47:00,877 INFO L495 AbstractCegarLoop]: Abstraction has 3254 states and 12309 transitions. [2022-11-26 00:47:00,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:00,877 INFO L276 IsEmpty]: Start isEmpty. Operand 3254 states and 12309 transitions. [2022-11-26 00:47:00,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-26 00:47:00,878 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:47:00,878 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:47:00,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-26 00:47:00,879 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:47:00,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:47:00,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1437535327, now seen corresponding path program 1 times [2022-11-26 00:47:00,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:47:00,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765528768] [2022-11-26 00:47:00,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:47:00,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:47:00,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:47:00,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:47:00,963 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:47:00,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765528768] [2022-11-26 00:47:00,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765528768] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:47:00,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:47:00,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 00:47:00,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362818671] [2022-11-26 00:47:00,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:47:00,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:47:00,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:47:00,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:47:00,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:47:00,966 INFO L87 Difference]: Start difference. First operand 3254 states and 12309 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:01,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:47:01,074 INFO L93 Difference]: Finished difference Result 3124 states and 11875 transitions. [2022-11-26 00:47:01,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:47:01,075 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-26 00:47:01,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:47:01,097 INFO L225 Difference]: With dead ends: 3124 [2022-11-26 00:47:01,097 INFO L226 Difference]: Without dead ends: 3124 [2022-11-26 00:47:01,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:47:01,098 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 29 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:47:01,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 4 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:47:01,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3124 states. [2022-11-26 00:47:01,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3124 to 3124. [2022-11-26 00:47:01,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3121 states have (on average 3.804870233899391) internal successors, (11875), 3123 states have internal predecessors, (11875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:01,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 11875 transitions. [2022-11-26 00:47:01,287 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 11875 transitions. Word has length 7 [2022-11-26 00:47:01,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:47:01,288 INFO L495 AbstractCegarLoop]: Abstraction has 3124 states and 11875 transitions. [2022-11-26 00:47:01,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:01,288 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 11875 transitions. [2022-11-26 00:47:01,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-26 00:47:01,292 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:47:01,292 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:47:01,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-26 00:47:01,292 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:47:01,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:47:01,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1508005293, now seen corresponding path program 1 times [2022-11-26 00:47:01,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:47:01,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973994473] [2022-11-26 00:47:01,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:47:01,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:47:01,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:47:01,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:47:01,375 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:47:01,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973994473] [2022-11-26 00:47:01,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973994473] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:47:01,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:47:01,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 00:47:01,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704495815] [2022-11-26 00:47:01,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:47:01,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:47:01,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:47:01,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:47:01,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:47:01,377 INFO L87 Difference]: Start difference. First operand 3124 states and 11875 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:01,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:47:01,525 INFO L93 Difference]: Finished difference Result 2499 states and 9250 transitions. [2022-11-26 00:47:01,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:47:01,539 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-26 00:47:01,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:47:01,563 INFO L225 Difference]: With dead ends: 2499 [2022-11-26 00:47:01,563 INFO L226 Difference]: Without dead ends: 2499 [2022-11-26 00:47:01,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:47:01,566 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 26 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:47:01,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 4 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:47:01,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2499 states. [2022-11-26 00:47:01,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2499 to 2499. [2022-11-26 00:47:01,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2499 states, 2497 states have (on average 3.7044453344012815) internal successors, (9250), 2498 states have internal predecessors, (9250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:01,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2499 states to 2499 states and 9250 transitions. [2022-11-26 00:47:01,725 INFO L78 Accepts]: Start accepts. Automaton has 2499 states and 9250 transitions. Word has length 9 [2022-11-26 00:47:01,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:47:01,726 INFO L495 AbstractCegarLoop]: Abstraction has 2499 states and 9250 transitions. [2022-11-26 00:47:01,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:01,726 INFO L276 IsEmpty]: Start isEmpty. Operand 2499 states and 9250 transitions. [2022-11-26 00:47:01,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-26 00:47:01,727 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:47:01,728 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:47:01,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-26 00:47:01,728 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:47:01,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:47:01,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1508005292, now seen corresponding path program 1 times [2022-11-26 00:47:01,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:47:01,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506856983] [2022-11-26 00:47:01,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:47:01,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:47:01,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:47:02,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:47:02,023 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:47:02,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506856983] [2022-11-26 00:47:02,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506856983] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:47:02,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:47:02,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:47:02,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223024453] [2022-11-26 00:47:02,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:47:02,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:47:02,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:47:02,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:47:02,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:47:02,027 INFO L87 Difference]: Start difference. First operand 2499 states and 9250 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:02,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:47:02,114 INFO L93 Difference]: Finished difference Result 1874 states and 6625 transitions. [2022-11-26 00:47:02,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:47:02,115 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-26 00:47:02,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:47:02,129 INFO L225 Difference]: With dead ends: 1874 [2022-11-26 00:47:02,129 INFO L226 Difference]: Without dead ends: 1874 [2022-11-26 00:47:02,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:47:02,131 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 56 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:47:02,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 4 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:47:02,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1874 states. [2022-11-26 00:47:02,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1874 to 1874. [2022-11-26 00:47:02,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1874 states, 1873 states have (on average 3.5371062466631074) internal successors, (6625), 1873 states have internal predecessors, (6625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:02,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1874 states to 1874 states and 6625 transitions. [2022-11-26 00:47:02,227 INFO L78 Accepts]: Start accepts. Automaton has 1874 states and 6625 transitions. Word has length 9 [2022-11-26 00:47:02,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:47:02,228 INFO L495 AbstractCegarLoop]: Abstraction has 1874 states and 6625 transitions. [2022-11-26 00:47:02,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:02,229 INFO L276 IsEmpty]: Start isEmpty. Operand 1874 states and 6625 transitions. [2022-11-26 00:47:02,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:47:02,245 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:47:02,245 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:47:02,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-26 00:47:02,246 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:47:02,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:47:02,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1546464017, now seen corresponding path program 1 times [2022-11-26 00:47:02,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:47:02,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135325440] [2022-11-26 00:47:02,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:47:02,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:47:02,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:47:02,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:47:02,825 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:47:02,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135325440] [2022-11-26 00:47:02,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135325440] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:47:02,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:47:02,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:47:02,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897316175] [2022-11-26 00:47:02,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:47:02,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:47:02,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:47:02,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:47:02,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:47:02,829 INFO L87 Difference]: Start difference. First operand 1874 states and 6625 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:02,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:47:02,928 INFO L93 Difference]: Finished difference Result 1522 states and 5261 transitions. [2022-11-26 00:47:02,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:47:02,929 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:47:02,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:47:02,939 INFO L225 Difference]: With dead ends: 1522 [2022-11-26 00:47:02,939 INFO L226 Difference]: Without dead ends: 1522 [2022-11-26 00:47:02,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:47:02,940 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 16 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:47:02,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 7 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:47:02,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1522 states. [2022-11-26 00:47:03,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1522 to 1522. [2022-11-26 00:47:03,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1522 states, 1521 states have (on average 3.4589086127547666) internal successors, (5261), 1521 states have internal predecessors, (5261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:03,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1522 states to 1522 states and 5261 transitions. [2022-11-26 00:47:03,019 INFO L78 Accepts]: Start accepts. Automaton has 1522 states and 5261 transitions. Word has length 33 [2022-11-26 00:47:03,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:47:03,020 INFO L495 AbstractCegarLoop]: Abstraction has 1522 states and 5261 transitions. [2022-11-26 00:47:03,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:03,020 INFO L276 IsEmpty]: Start isEmpty. Operand 1522 states and 5261 transitions. [2022-11-26 00:47:03,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:47:03,026 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:47:03,026 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:47:03,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-26 00:47:03,027 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:47:03,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:47:03,028 INFO L85 PathProgramCache]: Analyzing trace with hash -257604591, now seen corresponding path program 2 times [2022-11-26 00:47:03,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:47:03,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965816016] [2022-11-26 00:47:03,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:47:03,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:47:03,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:47:06,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:47:06,039 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:47:06,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965816016] [2022-11-26 00:47:06,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965816016] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:47:06,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:47:06,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:47:06,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092885396] [2022-11-26 00:47:06,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:47:06,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:47:06,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:47:06,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:47:06,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:47:06,042 INFO L87 Difference]: Start difference. First operand 1522 states and 5261 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:08,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:47:08,655 INFO L93 Difference]: Finished difference Result 2737 states and 8695 transitions. [2022-11-26 00:47:08,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:47:08,656 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:47:08,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:47:08,674 INFO L225 Difference]: With dead ends: 2737 [2022-11-26 00:47:08,674 INFO L226 Difference]: Without dead ends: 2716 [2022-11-26 00:47:08,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=163, Invalid=343, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:47:08,675 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 248 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 1139 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 1168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:47:08,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 37 Invalid, 1168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1139 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-26 00:47:08,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2716 states. [2022-11-26 00:47:08,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2716 to 1554. [2022-11-26 00:47:08,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1553 states have (on average 3.4520283322601415) internal successors, (5361), 1553 states have internal predecessors, (5361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:08,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 5361 transitions. [2022-11-26 00:47:08,768 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 5361 transitions. Word has length 33 [2022-11-26 00:47:08,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:47:08,769 INFO L495 AbstractCegarLoop]: Abstraction has 1554 states and 5361 transitions. [2022-11-26 00:47:08,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:08,770 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 5361 transitions. [2022-11-26 00:47:08,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:47:08,778 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:47:08,778 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:47:08,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-26 00:47:08,779 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:47:08,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:47:08,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1927898045, now seen corresponding path program 3 times [2022-11-26 00:47:08,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:47:08,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592954047] [2022-11-26 00:47:08,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:47:08,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:47:09,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:47:11,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:47:11,345 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:47:11,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592954047] [2022-11-26 00:47:11,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592954047] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:47:11,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:47:11,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:47:11,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036072692] [2022-11-26 00:47:11,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:47:11,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:47:11,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:47:11,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:47:11,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:47:11,348 INFO L87 Difference]: Start difference. First operand 1554 states and 5361 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:13,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:47:13,785 INFO L93 Difference]: Finished difference Result 2745 states and 8699 transitions. [2022-11-26 00:47:13,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:47:13,786 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:47:13,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:47:13,799 INFO L225 Difference]: With dead ends: 2745 [2022-11-26 00:47:13,799 INFO L226 Difference]: Without dead ends: 2734 [2022-11-26 00:47:13,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=163, Invalid=343, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:47:13,800 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 284 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 1108 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 1135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:47:13,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 42 Invalid, 1135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1108 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-26 00:47:13,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2734 states. [2022-11-26 00:47:13,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2734 to 1556. [2022-11-26 00:47:13,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1555 states have (on average 3.44951768488746) internal successors, (5364), 1555 states have internal predecessors, (5364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:13,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 5364 transitions. [2022-11-26 00:47:13,872 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 5364 transitions. Word has length 33 [2022-11-26 00:47:13,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:47:13,873 INFO L495 AbstractCegarLoop]: Abstraction has 1556 states and 5364 transitions. [2022-11-26 00:47:13,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:13,874 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 5364 transitions. [2022-11-26 00:47:13,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:47:13,880 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:47:13,880 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:47:13,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-26 00:47:13,881 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:47:13,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:47:13,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1839716777, now seen corresponding path program 4 times [2022-11-26 00:47:13,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:47:13,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250729104] [2022-11-26 00:47:13,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:47:13,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:47:14,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:47:16,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:47:16,161 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:47:16,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250729104] [2022-11-26 00:47:16,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250729104] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:47:16,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:47:16,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:47:16,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107431748] [2022-11-26 00:47:16,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:47:16,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:47:16,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:47:16,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:47:16,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:47:16,164 INFO L87 Difference]: Start difference. First operand 1556 states and 5364 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:18,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:47:18,883 INFO L93 Difference]: Finished difference Result 2733 states and 8685 transitions. [2022-11-26 00:47:18,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:47:18,884 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:47:18,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:47:18,898 INFO L225 Difference]: With dead ends: 2733 [2022-11-26 00:47:18,898 INFO L226 Difference]: Without dead ends: 2714 [2022-11-26 00:47:18,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:47:18,899 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 246 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 1270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:47:18,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 45 Invalid, 1270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1243 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-26 00:47:18,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2714 states. [2022-11-26 00:47:18,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2714 to 1552. [2022-11-26 00:47:18,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1552 states, 1551 states have (on average 3.4532559638942617) internal successors, (5356), 1551 states have internal predecessors, (5356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:18,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1552 states to 1552 states and 5356 transitions. [2022-11-26 00:47:18,969 INFO L78 Accepts]: Start accepts. Automaton has 1552 states and 5356 transitions. Word has length 33 [2022-11-26 00:47:18,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:47:18,971 INFO L495 AbstractCegarLoop]: Abstraction has 1552 states and 5356 transitions. [2022-11-26 00:47:18,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:18,972 INFO L276 IsEmpty]: Start isEmpty. Operand 1552 states and 5356 transitions. [2022-11-26 00:47:18,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:47:18,978 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:47:18,978 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:47:18,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-26 00:47:18,979 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:47:18,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:47:18,980 INFO L85 PathProgramCache]: Analyzing trace with hash 500188755, now seen corresponding path program 5 times [2022-11-26 00:47:18,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:47:18,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315803610] [2022-11-26 00:47:18,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:47:18,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:47:19,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:47:21,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:47:21,563 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:47:21,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315803610] [2022-11-26 00:47:21,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315803610] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:47:21,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:47:21,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:47:21,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018206204] [2022-11-26 00:47:21,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:47:21,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:47:21,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:47:21,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:47:21,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:47:21,565 INFO L87 Difference]: Start difference. First operand 1552 states and 5356 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:23,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:47:23,984 INFO L93 Difference]: Finished difference Result 2729 states and 8677 transitions. [2022-11-26 00:47:23,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:47:23,991 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:47:23,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:47:24,004 INFO L225 Difference]: With dead ends: 2729 [2022-11-26 00:47:24,005 INFO L226 Difference]: Without dead ends: 2716 [2022-11-26 00:47:24,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=163, Invalid=343, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:47:24,006 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 240 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 1145 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 1174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:47:24,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 37 Invalid, 1174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1145 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:47:24,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2716 states. [2022-11-26 00:47:24,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2716 to 1554. [2022-11-26 00:47:24,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1553 states have (on average 3.4507405022537023) internal successors, (5359), 1553 states have internal predecessors, (5359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:24,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 5359 transitions. [2022-11-26 00:47:24,078 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 5359 transitions. Word has length 33 [2022-11-26 00:47:24,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:47:24,081 INFO L495 AbstractCegarLoop]: Abstraction has 1554 states and 5359 transitions. [2022-11-26 00:47:24,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:24,081 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 5359 transitions. [2022-11-26 00:47:24,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:47:24,087 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:47:24,087 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:47:24,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-26 00:47:24,088 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:47:24,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:47:24,088 INFO L85 PathProgramCache]: Analyzing trace with hash 436741629, now seen corresponding path program 6 times [2022-11-26 00:47:24,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:47:24,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14253536] [2022-11-26 00:47:24,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:47:24,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:47:24,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:47:26,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:47:26,343 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:47:26,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14253536] [2022-11-26 00:47:26,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14253536] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:47:26,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:47:26,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:47:26,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177718187] [2022-11-26 00:47:26,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:47:26,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:47:26,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:47:26,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:47:26,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:47:26,345 INFO L87 Difference]: Start difference. First operand 1554 states and 5359 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:28,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:47:28,801 INFO L93 Difference]: Finished difference Result 2745 states and 8697 transitions. [2022-11-26 00:47:28,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:47:28,802 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:47:28,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:47:28,813 INFO L225 Difference]: With dead ends: 2745 [2022-11-26 00:47:28,814 INFO L226 Difference]: Without dead ends: 2734 [2022-11-26 00:47:28,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:47:28,815 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 238 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1354 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 1381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:47:28,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 45 Invalid, 1381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1354 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-26 00:47:28,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2734 states. [2022-11-26 00:47:28,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2734 to 1556. [2022-11-26 00:47:28,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1555 states have (on average 3.4482315112540194) internal successors, (5362), 1555 states have internal predecessors, (5362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:28,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 5362 transitions. [2022-11-26 00:47:28,880 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 5362 transitions. Word has length 33 [2022-11-26 00:47:28,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:47:28,881 INFO L495 AbstractCegarLoop]: Abstraction has 1556 states and 5362 transitions. [2022-11-26 00:47:28,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:28,881 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 5362 transitions. [2022-11-26 00:47:28,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:47:28,886 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:47:28,887 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:47:28,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-26 00:47:28,887 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:47:28,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:47:28,888 INFO L85 PathProgramCache]: Analyzing trace with hash 964094103, now seen corresponding path program 7 times [2022-11-26 00:47:28,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:47:28,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364217569] [2022-11-26 00:47:28,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:47:28,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:47:29,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:47:30,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:47:30,977 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:47:30,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364217569] [2022-11-26 00:47:30,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364217569] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:47:30,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:47:30,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:47:30,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636291000] [2022-11-26 00:47:30,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:47:30,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:47:30,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:47:30,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:47:30,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:47:30,979 INFO L87 Difference]: Start difference. First operand 1556 states and 5362 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:33,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:47:33,586 INFO L93 Difference]: Finished difference Result 2733 states and 8683 transitions. [2022-11-26 00:47:33,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:47:33,586 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:47:33,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:47:33,595 INFO L225 Difference]: With dead ends: 2733 [2022-11-26 00:47:33,596 INFO L226 Difference]: Without dead ends: 2712 [2022-11-26 00:47:33,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:47:33,597 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 231 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1316 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 1344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:47:33,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 44 Invalid, 1344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1316 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-26 00:47:33,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2712 states. [2022-11-26 00:47:33,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2712 to 1550. [2022-11-26 00:47:33,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1550 states, 1549 states have (on average 3.4544867656552616) internal successors, (5351), 1549 states have internal predecessors, (5351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:33,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1550 states to 1550 states and 5351 transitions. [2022-11-26 00:47:33,656 INFO L78 Accepts]: Start accepts. Automaton has 1550 states and 5351 transitions. Word has length 33 [2022-11-26 00:47:33,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:47:33,657 INFO L495 AbstractCegarLoop]: Abstraction has 1550 states and 5351 transitions. [2022-11-26 00:47:33,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:33,657 INFO L276 IsEmpty]: Start isEmpty. Operand 1550 states and 5351 transitions. [2022-11-26 00:47:33,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:47:33,662 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:47:33,662 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:47:33,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-26 00:47:33,663 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:47:33,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:47:33,663 INFO L85 PathProgramCache]: Analyzing trace with hash -413169399, now seen corresponding path program 8 times [2022-11-26 00:47:33,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:47:33,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041954508] [2022-11-26 00:47:33,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:47:33,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:47:33,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:47:35,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:47:35,688 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:47:35,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041954508] [2022-11-26 00:47:35,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041954508] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:47:35,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:47:35,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:47:35,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870481270] [2022-11-26 00:47:35,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:47:35,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:47:35,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:47:35,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:47:35,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:47:35,690 INFO L87 Difference]: Start difference. First operand 1550 states and 5351 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:37,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:47:37,905 INFO L93 Difference]: Finished difference Result 2795 states and 8795 transitions. [2022-11-26 00:47:37,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:47:37,905 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:47:37,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:47:37,916 INFO L225 Difference]: With dead ends: 2795 [2022-11-26 00:47:37,916 INFO L226 Difference]: Without dead ends: 2774 [2022-11-26 00:47:37,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:47:37,918 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 299 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 1283 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 1312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:47:37,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 39 Invalid, 1312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1283 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:47:37,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2774 states. [2022-11-26 00:47:37,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2774 to 1554. [2022-11-26 00:47:37,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1553 states have (on average 3.4520283322601415) internal successors, (5361), 1553 states have internal predecessors, (5361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:38,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 5361 transitions. [2022-11-26 00:47:38,002 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 5361 transitions. Word has length 33 [2022-11-26 00:47:38,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:47:38,003 INFO L495 AbstractCegarLoop]: Abstraction has 1554 states and 5361 transitions. [2022-11-26 00:47:38,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:38,003 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 5361 transitions. [2022-11-26 00:47:38,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:47:38,015 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:47:38,016 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:47:38,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-26 00:47:38,016 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:47:38,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:47:38,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1772333237, now seen corresponding path program 9 times [2022-11-26 00:47:38,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:47:38,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74198990] [2022-11-26 00:47:38,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:47:38,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:47:38,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:47:40,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:47:40,336 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:47:40,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74198990] [2022-11-26 00:47:40,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74198990] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:47:40,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:47:40,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:47:40,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052542347] [2022-11-26 00:47:40,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:47:40,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:47:40,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:47:40,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:47:40,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:47:40,339 INFO L87 Difference]: Start difference. First operand 1554 states and 5361 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:42,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:47:42,730 INFO L93 Difference]: Finished difference Result 2787 states and 8779 transitions. [2022-11-26 00:47:42,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:47:42,731 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:47:42,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:47:42,739 INFO L225 Difference]: With dead ends: 2787 [2022-11-26 00:47:42,739 INFO L226 Difference]: Without dead ends: 2776 [2022-11-26 00:47:42,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:47:42,740 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 319 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 1237 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 1265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:47:42,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 47 Invalid, 1265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1237 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-26 00:47:42,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2776 states. [2022-11-26 00:47:42,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2776 to 1556. [2022-11-26 00:47:42,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1555 states have (on average 3.44951768488746) internal successors, (5364), 1555 states have internal predecessors, (5364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:42,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 5364 transitions. [2022-11-26 00:47:42,806 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 5364 transitions. Word has length 33 [2022-11-26 00:47:42,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:47:42,807 INFO L495 AbstractCegarLoop]: Abstraction has 1556 states and 5364 transitions. [2022-11-26 00:47:42,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:42,807 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 5364 transitions. [2022-11-26 00:47:42,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:47:42,813 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:47:42,813 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:47:42,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-26 00:47:42,814 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:47:42,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:47:42,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1995281585, now seen corresponding path program 10 times [2022-11-26 00:47:42,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:47:42,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684530167] [2022-11-26 00:47:42,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:47:42,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:47:42,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:47:44,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:47:44,979 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:47:44,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684530167] [2022-11-26 00:47:44,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684530167] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:47:44,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:47:44,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:47:44,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586431136] [2022-11-26 00:47:44,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:47:44,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:47:44,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:47:44,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:47:44,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:47:44,983 INFO L87 Difference]: Start difference. First operand 1556 states and 5364 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:47,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:47:47,247 INFO L93 Difference]: Finished difference Result 2791 states and 8785 transitions. [2022-11-26 00:47:47,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:47:47,247 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:47:47,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:47:47,255 INFO L225 Difference]: With dead ends: 2791 [2022-11-26 00:47:47,255 INFO L226 Difference]: Without dead ends: 2772 [2022-11-26 00:47:47,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:47:47,256 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 275 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1367 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 1394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:47:47,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 52 Invalid, 1394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1367 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:47:47,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2772 states. [2022-11-26 00:47:47,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2772 to 1552. [2022-11-26 00:47:47,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1552 states, 1551 states have (on average 3.4532559638942617) internal successors, (5356), 1551 states have internal predecessors, (5356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:47,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1552 states to 1552 states and 5356 transitions. [2022-11-26 00:47:47,313 INFO L78 Accepts]: Start accepts. Automaton has 1552 states and 5356 transitions. Word has length 33 [2022-11-26 00:47:47,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:47:47,313 INFO L495 AbstractCegarLoop]: Abstraction has 1552 states and 5356 transitions. [2022-11-26 00:47:47,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:47,314 INFO L276 IsEmpty]: Start isEmpty. Operand 1552 states and 5356 transitions. [2022-11-26 00:47:47,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:47:47,319 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:47:47,319 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:47:47,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-26 00:47:47,320 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:47:47,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:47:47,320 INFO L85 PathProgramCache]: Analyzing trace with hash -623499507, now seen corresponding path program 11 times [2022-11-26 00:47:47,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:47:47,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051979165] [2022-11-26 00:47:47,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:47:47,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:47:47,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:47:49,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:47:49,238 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:47:49,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051979165] [2022-11-26 00:47:49,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051979165] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:47:49,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:47:49,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:47:49,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999308465] [2022-11-26 00:47:49,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:47:49,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:47:49,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:47:49,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:47:49,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:47:49,241 INFO L87 Difference]: Start difference. First operand 1552 states and 5356 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:51,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:47:51,406 INFO L93 Difference]: Finished difference Result 2767 states and 8749 transitions. [2022-11-26 00:47:51,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:47:51,407 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:47:51,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:47:51,413 INFO L225 Difference]: With dead ends: 2767 [2022-11-26 00:47:51,413 INFO L226 Difference]: Without dead ends: 2746 [2022-11-26 00:47:51,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=163, Invalid=343, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:47:51,414 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 232 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 1213 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 1240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:47:51,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 32 Invalid, 1240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1213 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:47:51,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2746 states. [2022-11-26 00:47:51,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2746 to 1556. [2022-11-26 00:47:51,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1555 states have (on average 3.4488745980707396) internal successors, (5363), 1555 states have internal predecessors, (5363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:51,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 5363 transitions. [2022-11-26 00:47:51,478 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 5363 transitions. Word has length 33 [2022-11-26 00:47:51,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:47:51,479 INFO L495 AbstractCegarLoop]: Abstraction has 1556 states and 5363 transitions. [2022-11-26 00:47:51,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:51,479 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 5363 transitions. [2022-11-26 00:47:51,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:47:51,485 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:47:51,485 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:47:51,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-26 00:47:51,485 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:47:51,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:47:51,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1602197359, now seen corresponding path program 12 times [2022-11-26 00:47:51,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:47:51,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990337251] [2022-11-26 00:47:51,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:47:51,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:47:51,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:47:53,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:47:53,149 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:47:53,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990337251] [2022-11-26 00:47:53,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990337251] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:47:53,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:47:53,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:47:53,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2195393] [2022-11-26 00:47:53,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:47:53,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:47:53,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:47:53,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:47:53,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:47:53,151 INFO L87 Difference]: Start difference. First operand 1556 states and 5363 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:55,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:47:55,169 INFO L93 Difference]: Finished difference Result 2763 states and 8741 transitions. [2022-11-26 00:47:55,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:47:55,169 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:47:55,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:47:55,175 INFO L225 Difference]: With dead ends: 2763 [2022-11-26 00:47:55,175 INFO L226 Difference]: Without dead ends: 2750 [2022-11-26 00:47:55,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=163, Invalid=343, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:47:55,176 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 228 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 1318 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 1344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:47:55,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 37 Invalid, 1344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1318 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:47:55,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2750 states. [2022-11-26 00:47:55,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2750 to 1560. [2022-11-26 00:47:55,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1560 states, 1559 states have (on average 3.4445157152020527) internal successors, (5370), 1559 states have internal predecessors, (5370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:55,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1560 states to 1560 states and 5370 transitions. [2022-11-26 00:47:55,229 INFO L78 Accepts]: Start accepts. Automaton has 1560 states and 5370 transitions. Word has length 33 [2022-11-26 00:47:55,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:47:55,229 INFO L495 AbstractCegarLoop]: Abstraction has 1560 states and 5370 transitions. [2022-11-26 00:47:55,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:55,230 INFO L276 IsEmpty]: Start isEmpty. Operand 1560 states and 5370 transitions. [2022-11-26 00:47:55,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:47:55,235 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:47:55,235 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:47:55,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-26 00:47:55,236 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:47:55,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:47:55,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1837463283, now seen corresponding path program 13 times [2022-11-26 00:47:55,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:47:55,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922010692] [2022-11-26 00:47:55,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:47:55,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:47:55,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:47:56,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:47:56,929 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:47:56,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922010692] [2022-11-26 00:47:56,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922010692] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:47:56,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:47:56,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:47:56,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335605186] [2022-11-26 00:47:56,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:47:56,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:47:56,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:47:56,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:47:56,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:47:56,932 INFO L87 Difference]: Start difference. First operand 1560 states and 5370 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:58,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:47:58,877 INFO L93 Difference]: Finished difference Result 2749 states and 8721 transitions. [2022-11-26 00:47:58,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:47:58,877 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:47:58,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:47:58,885 INFO L225 Difference]: With dead ends: 2749 [2022-11-26 00:47:58,885 INFO L226 Difference]: Without dead ends: 2726 [2022-11-26 00:47:58,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=163, Invalid=343, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:47:58,886 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 212 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 1190 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:47:58,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 35 Invalid, 1215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1190 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:47:58,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2726 states. [2022-11-26 00:47:58,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2726 to 1552. [2022-11-26 00:47:58,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1552 states, 1551 states have (on average 3.451966473243069) internal successors, (5354), 1551 states have internal predecessors, (5354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:58,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1552 states to 1552 states and 5354 transitions. [2022-11-26 00:47:58,951 INFO L78 Accepts]: Start accepts. Automaton has 1552 states and 5354 transitions. Word has length 33 [2022-11-26 00:47:58,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:47:58,951 INFO L495 AbstractCegarLoop]: Abstraction has 1552 states and 5354 transitions. [2022-11-26 00:47:58,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:47:58,952 INFO L276 IsEmpty]: Start isEmpty. Operand 1552 states and 5354 transitions. [2022-11-26 00:47:58,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:47:58,959 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:47:58,959 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:47:58,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-26 00:47:58,960 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:47:58,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:47:58,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1863026771, now seen corresponding path program 14 times [2022-11-26 00:47:58,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:47:58,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007249127] [2022-11-26 00:47:58,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:47:58,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:47:59,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:48:00,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:48:00,719 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:48:00,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007249127] [2022-11-26 00:48:00,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007249127] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:48:00,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:48:00,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:48:00,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467731688] [2022-11-26 00:48:00,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:48:00,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:48:00,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:48:00,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:48:00,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:48:00,721 INFO L87 Difference]: Start difference. First operand 1552 states and 5354 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:48:02,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:48:02,861 INFO L93 Difference]: Finished difference Result 2779 states and 8764 transitions. [2022-11-26 00:48:02,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:48:02,862 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:48:02,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:48:02,867 INFO L225 Difference]: With dead ends: 2779 [2022-11-26 00:48:02,867 INFO L226 Difference]: Without dead ends: 2768 [2022-11-26 00:48:02,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:48:02,868 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 302 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 1280 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 1305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:48:02,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 34 Invalid, 1305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1280 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:48:02,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2768 states. [2022-11-26 00:48:02,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2768 to 1556. [2022-11-26 00:48:02,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1555 states have (on average 3.44951768488746) internal successors, (5364), 1555 states have internal predecessors, (5364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:48:02,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 5364 transitions. [2022-11-26 00:48:02,928 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 5364 transitions. Word has length 33 [2022-11-26 00:48:02,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:48:02,928 INFO L495 AbstractCegarLoop]: Abstraction has 1556 states and 5364 transitions. [2022-11-26 00:48:02,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:48:02,929 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 5364 transitions. [2022-11-26 00:48:02,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:48:02,933 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:48:02,934 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:48:02,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-26 00:48:02,934 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:48:02,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:48:02,935 INFO L85 PathProgramCache]: Analyzing trace with hash 779438287, now seen corresponding path program 15 times [2022-11-26 00:48:02,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:48:02,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142642581] [2022-11-26 00:48:02,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:48:02,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:48:03,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:48:04,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:48:04,495 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:48:04,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142642581] [2022-11-26 00:48:04,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142642581] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:48:04,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:48:04,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:48:04,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147404274] [2022-11-26 00:48:04,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:48:04,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:48:04,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:48:04,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:48:04,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:48:04,498 INFO L87 Difference]: Start difference. First operand 1556 states and 5364 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:48:06,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:48:06,524 INFO L93 Difference]: Finished difference Result 2781 states and 8766 transitions. [2022-11-26 00:48:06,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:48:06,525 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:48:06,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:48:06,533 INFO L225 Difference]: With dead ends: 2781 [2022-11-26 00:48:06,533 INFO L226 Difference]: Without dead ends: 2766 [2022-11-26 00:48:06,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:48:06,534 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 268 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 1347 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 1372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:48:06,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 31 Invalid, 1372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1347 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:48:06,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2766 states. [2022-11-26 00:48:06,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2766 to 1554. [2022-11-26 00:48:06,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1553 states have (on average 3.4507405022537023) internal successors, (5359), 1553 states have internal predecessors, (5359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:48:06,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 5359 transitions. [2022-11-26 00:48:06,591 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 5359 transitions. Word has length 33 [2022-11-26 00:48:06,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:48:06,591 INFO L495 AbstractCegarLoop]: Abstraction has 1554 states and 5359 transitions. [2022-11-26 00:48:06,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:48:06,591 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 5359 transitions. [2022-11-26 00:48:06,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:48:06,596 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:48:06,596 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:48:06,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-26 00:48:06,598 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:48:06,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:48:06,598 INFO L85 PathProgramCache]: Analyzing trace with hash 262588917, now seen corresponding path program 16 times [2022-11-26 00:48:06,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:48:06,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730456085] [2022-11-26 00:48:06,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:48:06,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:48:06,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:48:08,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:48:08,403 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:48:08,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730456085] [2022-11-26 00:48:08,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730456085] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:48:08,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:48:08,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:48:08,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801944993] [2022-11-26 00:48:08,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:48:08,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:48:08,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:48:08,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:48:08,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:48:08,406 INFO L87 Difference]: Start difference. First operand 1554 states and 5359 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:48:10,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:48:10,502 INFO L93 Difference]: Finished difference Result 2775 states and 8754 transitions. [2022-11-26 00:48:10,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:48:10,503 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:48:10,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:48:10,509 INFO L225 Difference]: With dead ends: 2775 [2022-11-26 00:48:10,509 INFO L226 Difference]: Without dead ends: 2764 [2022-11-26 00:48:10,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:48:10,510 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 297 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 1287 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:48:10,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 48 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1287 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:48:10,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2764 states. [2022-11-26 00:48:10,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2764 to 1556. [2022-11-26 00:48:10,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1555 states have (on average 3.4482315112540194) internal successors, (5362), 1555 states have internal predecessors, (5362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:48:10,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 5362 transitions. [2022-11-26 00:48:10,566 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 5362 transitions. Word has length 33 [2022-11-26 00:48:10,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:48:10,567 INFO L495 AbstractCegarLoop]: Abstraction has 1556 states and 5362 transitions. [2022-11-26 00:48:10,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:48:10,567 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 5362 transitions. [2022-11-26 00:48:10,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:48:10,572 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:48:10,572 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:48:10,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-26 00:48:10,572 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:48:10,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:48:10,573 INFO L85 PathProgramCache]: Analyzing trace with hash 789941391, now seen corresponding path program 17 times [2022-11-26 00:48:10,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:48:10,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733369422] [2022-11-26 00:48:10,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:48:10,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:48:10,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:48:12,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:48:12,407 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:48:12,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733369422] [2022-11-26 00:48:12,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733369422] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:48:12,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:48:12,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:48:12,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196826903] [2022-11-26 00:48:12,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:48:12,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:48:12,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:48:12,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:48:12,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:48:12,409 INFO L87 Difference]: Start difference. First operand 1556 states and 5362 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:48:14,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:48:14,578 INFO L93 Difference]: Finished difference Result 2769 states and 8751 transitions. [2022-11-26 00:48:14,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:48:14,578 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:48:14,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:48:14,584 INFO L225 Difference]: With dead ends: 2769 [2022-11-26 00:48:14,584 INFO L226 Difference]: Without dead ends: 2752 [2022-11-26 00:48:14,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:48:14,584 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 245 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 1344 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 1368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:48:14,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 41 Invalid, 1368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1344 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:48:14,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2752 states. [2022-11-26 00:48:14,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2752 to 1554. [2022-11-26 00:48:14,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1553 states have (on average 3.449452672247263) internal successors, (5357), 1553 states have internal predecessors, (5357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:48:14,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 5357 transitions. [2022-11-26 00:48:14,640 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 5357 transitions. Word has length 33 [2022-11-26 00:48:14,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:48:14,641 INFO L495 AbstractCegarLoop]: Abstraction has 1554 states and 5357 transitions. [2022-11-26 00:48:14,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:48:14,641 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 5357 transitions. [2022-11-26 00:48:14,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:48:14,646 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:48:14,646 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:48:14,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-26 00:48:14,646 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:48:14,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:48:14,647 INFO L85 PathProgramCache]: Analyzing trace with hash -52504203, now seen corresponding path program 18 times [2022-11-26 00:48:14,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:48:14,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589395777] [2022-11-26 00:48:14,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:48:14,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:48:14,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:48:16,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:48:16,341 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:48:16,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589395777] [2022-11-26 00:48:16,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589395777] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:48:16,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:48:16,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:48:16,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018739864] [2022-11-26 00:48:16,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:48:16,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:48:16,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:48:16,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:48:16,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:48:16,344 INFO L87 Difference]: Start difference. First operand 1554 states and 5357 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:48:18,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:48:18,301 INFO L93 Difference]: Finished difference Result 2761 states and 8735 transitions. [2022-11-26 00:48:18,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:48:18,302 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:48:18,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:48:18,308 INFO L225 Difference]: With dead ends: 2761 [2022-11-26 00:48:18,308 INFO L226 Difference]: Without dead ends: 2748 [2022-11-26 00:48:18,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:48:18,309 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 230 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 1360 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 1384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:48:18,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 39 Invalid, 1384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1360 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:48:18,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2748 states. [2022-11-26 00:48:18,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2748 to 1558. [2022-11-26 00:48:18,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1558 states, 1557 states have (on average 3.445086705202312) internal successors, (5364), 1557 states have internal predecessors, (5364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:48:18,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 5364 transitions. [2022-11-26 00:48:18,361 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 5364 transitions. Word has length 33 [2022-11-26 00:48:18,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:48:18,362 INFO L495 AbstractCegarLoop]: Abstraction has 1558 states and 5364 transitions. [2022-11-26 00:48:18,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:48:18,362 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 5364 transitions. [2022-11-26 00:48:18,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:48:18,367 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:48:18,367 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:48:18,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-26 00:48:18,368 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:48:18,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:48:18,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1558436755, now seen corresponding path program 19 times [2022-11-26 00:48:18,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:48:18,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789626353] [2022-11-26 00:48:18,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:48:18,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:48:18,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:48:20,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:48:20,012 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:48:20,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789626353] [2022-11-26 00:48:20,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789626353] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:48:20,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:48:20,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:48:20,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030460243] [2022-11-26 00:48:20,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:48:20,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:48:20,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:48:20,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:48:20,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:48:20,014 INFO L87 Difference]: Start difference. First operand 1558 states and 5364 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:48:22,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:48:22,070 INFO L93 Difference]: Finished difference Result 2747 states and 8715 transitions. [2022-11-26 00:48:22,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:48:22,071 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:48:22,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:48:22,077 INFO L225 Difference]: With dead ends: 2747 [2022-11-26 00:48:22,077 INFO L226 Difference]: Without dead ends: 2724 [2022-11-26 00:48:22,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:48:22,078 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 204 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 1362 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 1386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:48:22,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 36 Invalid, 1386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1362 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:48:22,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2724 states. [2022-11-26 00:48:22,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2724 to 1550. [2022-11-26 00:48:22,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1550 states, 1549 states have (on average 3.4531956100710137) internal successors, (5349), 1549 states have internal predecessors, (5349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:48:22,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1550 states to 1550 states and 5349 transitions. [2022-11-26 00:48:22,130 INFO L78 Accepts]: Start accepts. Automaton has 1550 states and 5349 transitions. Word has length 33 [2022-11-26 00:48:22,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:48:22,130 INFO L495 AbstractCegarLoop]: Abstraction has 1550 states and 5349 transitions. [2022-11-26 00:48:22,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:48:22,131 INFO L276 IsEmpty]: Start isEmpty. Operand 1550 states and 5349 transitions. [2022-11-26 00:48:22,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:48:22,136 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:48:22,136 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:48:22,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-26 00:48:22,136 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:48:22,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:48:22,137 INFO L85 PathProgramCache]: Analyzing trace with hash -983278987, now seen corresponding path program 20 times [2022-11-26 00:48:22,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:48:22,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665211814] [2022-11-26 00:48:22,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:48:22,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:48:22,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:48:23,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:48:24,000 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:48:24,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665211814] [2022-11-26 00:48:24,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665211814] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:48:24,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:48:24,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:48:24,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761124065] [2022-11-26 00:48:24,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:48:24,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:48:24,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:48:24,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:48:24,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:48:24,002 INFO L87 Difference]: Start difference. First operand 1550 states and 5349 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:48:26,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:48:26,239 INFO L93 Difference]: Finished difference Result 2757 states and 8727 transitions. [2022-11-26 00:48:26,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:48:26,240 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:48:26,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:48:26,246 INFO L225 Difference]: With dead ends: 2757 [2022-11-26 00:48:26,246 INFO L226 Difference]: Without dead ends: 2744 [2022-11-26 00:48:26,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=163, Invalid=343, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:48:26,247 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 220 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 1346 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 1374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:48:26,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 40 Invalid, 1374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1346 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:48:26,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2744 states. [2022-11-26 00:48:26,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2744 to 1554. [2022-11-26 00:48:26,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1553 states have (on average 3.4507405022537023) internal successors, (5359), 1553 states have internal predecessors, (5359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:48:26,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 5359 transitions. [2022-11-26 00:48:26,298 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 5359 transitions. Word has length 33 [2022-11-26 00:48:26,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:48:26,299 INFO L495 AbstractCegarLoop]: Abstraction has 1554 states and 5359 transitions. [2022-11-26 00:48:26,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:48:26,299 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 5359 transitions. [2022-11-26 00:48:26,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:48:26,304 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:48:26,304 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:48:26,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-26 00:48:26,305 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:48:26,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:48:26,305 INFO L85 PathProgramCache]: Analyzing trace with hash 553711741, now seen corresponding path program 21 times [2022-11-26 00:48:26,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:48:26,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608796010] [2022-11-26 00:48:26,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:48:26,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:48:26,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:48:28,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:48:28,082 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:48:28,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608796010] [2022-11-26 00:48:28,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608796010] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:48:28,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:48:28,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:48:28,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980793777] [2022-11-26 00:48:28,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:48:28,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:48:28,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:48:28,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:48:28,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:48:28,084 INFO L87 Difference]: Start difference. First operand 1554 states and 5359 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:48:30,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:48:30,229 INFO L93 Difference]: Finished difference Result 2771 states and 8743 transitions. [2022-11-26 00:48:30,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:48:30,230 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:48:30,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:48:30,235 INFO L225 Difference]: With dead ends: 2771 [2022-11-26 00:48:30,236 INFO L226 Difference]: Without dead ends: 2760 [2022-11-26 00:48:30,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=163, Invalid=343, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:48:30,236 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 296 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 1303 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 1330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:48:30,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 39 Invalid, 1330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1303 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:48:30,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2760 states. [2022-11-26 00:48:30,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2760 to 1556. [2022-11-26 00:48:30,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1555 states have (on average 3.4482315112540194) internal successors, (5362), 1555 states have internal predecessors, (5362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:48:30,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 5362 transitions. [2022-11-26 00:48:30,278 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 5362 transitions. Word has length 33 [2022-11-26 00:48:30,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:48:30,278 INFO L495 AbstractCegarLoop]: Abstraction has 1556 states and 5362 transitions. [2022-11-26 00:48:30,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:48:30,278 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 5362 transitions. [2022-11-26 00:48:30,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:48:30,283 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:48:30,283 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:48:30,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-26 00:48:30,284 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:48:30,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:48:30,285 INFO L85 PathProgramCache]: Analyzing trace with hash -529876743, now seen corresponding path program 22 times [2022-11-26 00:48:30,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:48:30,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864684297] [2022-11-26 00:48:30,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:48:30,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:48:30,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:48:31,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:48:31,918 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:48:31,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864684297] [2022-11-26 00:48:31,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864684297] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:48:31,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:48:31,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:48:31,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815295886] [2022-11-26 00:48:31,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:48:31,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:48:31,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:48:31,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:48:31,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:48:31,920 INFO L87 Difference]: Start difference. First operand 1556 states and 5362 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:48:33,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:48:33,962 INFO L93 Difference]: Finished difference Result 2759 states and 8729 transitions. [2022-11-26 00:48:33,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:48:33,962 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:48:33,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:48:33,968 INFO L225 Difference]: With dead ends: 2759 [2022-11-26 00:48:33,968 INFO L226 Difference]: Without dead ends: 2742 [2022-11-26 00:48:33,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=163, Invalid=343, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:48:33,969 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 246 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 1192 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 1219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:48:33,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 32 Invalid, 1219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1192 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:48:33,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2742 states. [2022-11-26 00:48:34,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2742 to 1552. [2022-11-26 00:48:34,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1552 states, 1551 states have (on average 3.451966473243069) internal successors, (5354), 1551 states have internal predecessors, (5354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:48:34,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1552 states to 1552 states and 5354 transitions. [2022-11-26 00:48:34,010 INFO L78 Accepts]: Start accepts. Automaton has 1552 states and 5354 transitions. Word has length 33 [2022-11-26 00:48:34,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:48:34,010 INFO L495 AbstractCegarLoop]: Abstraction has 1552 states and 5354 transitions. [2022-11-26 00:48:34,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:48:34,011 INFO L276 IsEmpty]: Start isEmpty. Operand 1552 states and 5354 transitions. [2022-11-26 00:48:34,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:48:34,015 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:48:34,015 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:48:34,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-26 00:48:34,016 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:48:34,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:48:34,016 INFO L85 PathProgramCache]: Analyzing trace with hash 942755091, now seen corresponding path program 23 times [2022-11-26 00:48:34,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:48:34,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585680581] [2022-11-26 00:48:34,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:48:34,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:48:34,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:48:35,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:48:35,931 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:48:35,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585680581] [2022-11-26 00:48:35,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585680581] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:48:35,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:48:35,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:48:35,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360711203] [2022-11-26 00:48:35,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:48:35,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:48:35,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:48:35,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:48:35,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:48:35,932 INFO L87 Difference]: Start difference. First operand 1552 states and 5354 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:48:38,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:48:38,219 INFO L93 Difference]: Finished difference Result 2773 states and 8745 transitions. [2022-11-26 00:48:38,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:48:38,220 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:48:38,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:48:38,226 INFO L225 Difference]: With dead ends: 2773 [2022-11-26 00:48:38,226 INFO L226 Difference]: Without dead ends: 2760 [2022-11-26 00:48:38,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:48:38,227 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 283 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 1282 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 1310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:48:38,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 40 Invalid, 1310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1282 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:48:38,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2760 states. [2022-11-26 00:48:38,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2760 to 1554. [2022-11-26 00:48:38,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1553 states have (on average 3.449452672247263) internal successors, (5357), 1553 states have internal predecessors, (5357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:48:38,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 5357 transitions. [2022-11-26 00:48:38,269 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 5357 transitions. Word has length 33 [2022-11-26 00:48:38,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:48:38,269 INFO L495 AbstractCegarLoop]: Abstraction has 1554 states and 5357 transitions. [2022-11-26 00:48:38,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:48:38,270 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 5357 transitions. [2022-11-26 00:48:38,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:48:38,275 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:48:38,275 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:48:38,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-26 00:48:38,275 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:48:38,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:48:38,276 INFO L85 PathProgramCache]: Analyzing trace with hash 879307965, now seen corresponding path program 24 times [2022-11-26 00:48:38,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:48:38,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571817147] [2022-11-26 00:48:38,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:48:38,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:48:38,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:48:39,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:48:39,956 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:48:39,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571817147] [2022-11-26 00:48:39,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571817147] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:48:39,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:48:39,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:48:39,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768126948] [2022-11-26 00:48:39,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:48:39,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:48:39,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:48:39,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:48:39,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:48:39,959 INFO L87 Difference]: Start difference. First operand 1554 states and 5357 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:48:42,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:48:42,187 INFO L93 Difference]: Finished difference Result 2777 states and 8753 transitions. [2022-11-26 00:48:42,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:48:42,188 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:48:42,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:48:42,194 INFO L225 Difference]: With dead ends: 2777 [2022-11-26 00:48:42,194 INFO L226 Difference]: Without dead ends: 2766 [2022-11-26 00:48:42,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:48:42,195 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 276 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1283 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 1310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:48:42,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 49 Invalid, 1310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1283 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:48:42,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2766 states. [2022-11-26 00:48:42,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2766 to 1556. [2022-11-26 00:48:42,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1555 states have (on average 3.446945337620579) internal successors, (5360), 1555 states have internal predecessors, (5360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:48:42,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 5360 transitions. [2022-11-26 00:48:42,231 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 5360 transitions. Word has length 33 [2022-11-26 00:48:42,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:48:42,231 INFO L495 AbstractCegarLoop]: Abstraction has 1556 states and 5360 transitions. [2022-11-26 00:48:42,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:48:42,231 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 5360 transitions. [2022-11-26 00:48:42,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:48:42,234 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:48:42,234 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:48:42,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-26 00:48:42,235 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:48:42,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:48:42,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1406660439, now seen corresponding path program 25 times [2022-11-26 00:48:42,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:48:42,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636775865] [2022-11-26 00:48:42,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:48:42,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:48:42,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:48:43,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:48:43,879 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:48:43,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636775865] [2022-11-26 00:48:43,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636775865] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:48:43,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:48:43,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:48:43,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448040071] [2022-11-26 00:48:43,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:48:43,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:48:43,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:48:43,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:48:43,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:48:43,881 INFO L87 Difference]: Start difference. First operand 1556 states and 5360 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:48:46,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:48:46,253 INFO L93 Difference]: Finished difference Result 2765 states and 8739 transitions. [2022-11-26 00:48:46,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:48:46,254 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:48:46,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:48:46,259 INFO L225 Difference]: With dead ends: 2765 [2022-11-26 00:48:46,259 INFO L226 Difference]: Without dead ends: 2746 [2022-11-26 00:48:46,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:48:46,260 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 246 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1332 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 1359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:48:46,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 49 Invalid, 1359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1332 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:48:46,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2746 states. [2022-11-26 00:48:46,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2746 to 1552. [2022-11-26 00:48:46,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1552 states, 1551 states have (on average 3.4506769825918764) internal successors, (5352), 1551 states have internal predecessors, (5352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:48:46,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1552 states to 1552 states and 5352 transitions. [2022-11-26 00:48:46,298 INFO L78 Accepts]: Start accepts. Automaton has 1552 states and 5352 transitions. Word has length 33 [2022-11-26 00:48:46,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:48:46,299 INFO L495 AbstractCegarLoop]: Abstraction has 1552 states and 5352 transitions. [2022-11-26 00:48:46,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:48:46,299 INFO L276 IsEmpty]: Start isEmpty. Operand 1552 states and 5352 transitions. [2022-11-26 00:48:46,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:48:46,302 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:48:46,302 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:48:46,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-26 00:48:46,303 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:48:46,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:48:46,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1413149165, now seen corresponding path program 26 times [2022-11-26 00:48:46,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:48:46,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751323450] [2022-11-26 00:48:46,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:48:46,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:48:46,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:48:47,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:48:47,627 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:48:47,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751323450] [2022-11-26 00:48:47,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751323450] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:48:47,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:48:47,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:48:47,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430601886] [2022-11-26 00:48:47,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:48:47,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:48:47,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:48:47,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:48:47,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:48:47,629 INFO L87 Difference]: Start difference. First operand 1552 states and 5352 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:48:49,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:48:49,777 INFO L93 Difference]: Finished difference Result 2779 states and 8762 transitions. [2022-11-26 00:48:49,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:48:49,777 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:48:49,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:48:49,783 INFO L225 Difference]: With dead ends: 2779 [2022-11-26 00:48:49,783 INFO L226 Difference]: Without dead ends: 2768 [2022-11-26 00:48:49,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:48:49,784 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 304 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 1301 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 1326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:48:49,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 41 Invalid, 1326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1301 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:48:49,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2768 states. [2022-11-26 00:48:49,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2768 to 1556. [2022-11-26 00:48:49,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1555 states have (on average 3.4482315112540194) internal successors, (5362), 1555 states have internal predecessors, (5362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:48:49,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 5362 transitions. [2022-11-26 00:48:49,824 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 5362 transitions. Word has length 33 [2022-11-26 00:48:49,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:48:49,824 INFO L495 AbstractCegarLoop]: Abstraction has 1556 states and 5362 transitions. [2022-11-26 00:48:49,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:48:49,824 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 5362 transitions. [2022-11-26 00:48:49,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:48:49,827 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:48:49,828 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:48:49,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-26 00:48:49,828 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:48:49,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:48:49,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1798229647, now seen corresponding path program 27 times [2022-11-26 00:48:49,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:48:49,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584062307] [2022-11-26 00:48:49,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:48:49,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:48:49,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:48:51,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:48:51,578 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:48:51,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584062307] [2022-11-26 00:48:51,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584062307] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:48:51,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:48:51,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:48:51,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684070840] [2022-11-26 00:48:51,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:48:51,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:48:51,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:48:51,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:48:51,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:48:51,580 INFO L87 Difference]: Start difference. First operand 1556 states and 5362 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:48:53,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:48:53,638 INFO L93 Difference]: Finished difference Result 2781 states and 8764 transitions. [2022-11-26 00:48:53,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:48:53,639 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:48:53,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:48:53,645 INFO L225 Difference]: With dead ends: 2781 [2022-11-26 00:48:53,645 INFO L226 Difference]: Without dead ends: 2766 [2022-11-26 00:48:53,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:48:53,646 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 269 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 1335 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 1360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:48:53,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 36 Invalid, 1360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1335 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:48:53,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2766 states. [2022-11-26 00:48:53,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2766 to 1554. [2022-11-26 00:48:53,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1553 states have (on average 3.449452672247263) internal successors, (5357), 1553 states have internal predecessors, (5357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:48:53,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 5357 transitions. [2022-11-26 00:48:53,685 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 5357 transitions. Word has length 33 [2022-11-26 00:48:53,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:48:53,686 INFO L495 AbstractCegarLoop]: Abstraction has 1554 states and 5357 transitions. [2022-11-26 00:48:53,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:48:53,686 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 5357 transitions. [2022-11-26 00:48:53,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:48:53,689 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:48:53,690 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:48:53,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-26 00:48:53,690 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:48:53,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:48:53,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1281380277, now seen corresponding path program 28 times [2022-11-26 00:48:53,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:48:53,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854785358] [2022-11-26 00:48:53,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:48:53,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:48:53,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:48:55,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:48:55,424 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:48:55,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854785358] [2022-11-26 00:48:55,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854785358] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:48:55,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:48:55,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:48:55,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024529605] [2022-11-26 00:48:55,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:48:55,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:48:55,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:48:55,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:48:55,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:48:55,426 INFO L87 Difference]: Start difference. First operand 1554 states and 5357 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:48:57,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:48:57,633 INFO L93 Difference]: Finished difference Result 2775 states and 8752 transitions. [2022-11-26 00:48:57,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:48:57,634 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:48:57,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:48:57,639 INFO L225 Difference]: With dead ends: 2775 [2022-11-26 00:48:57,639 INFO L226 Difference]: Without dead ends: 2764 [2022-11-26 00:48:57,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:48:57,640 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 313 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 1247 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 1272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:48:57,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 48 Invalid, 1272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1247 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:48:57,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2764 states. [2022-11-26 00:48:57,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2764 to 1556. [2022-11-26 00:48:57,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1555 states have (on average 3.446945337620579) internal successors, (5360), 1555 states have internal predecessors, (5360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:48:57,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 5360 transitions. [2022-11-26 00:48:57,680 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 5360 transitions. Word has length 33 [2022-11-26 00:48:57,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:48:57,680 INFO L495 AbstractCegarLoop]: Abstraction has 1556 states and 5360 transitions. [2022-11-26 00:48:57,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:48:57,680 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 5360 transitions. [2022-11-26 00:48:57,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:48:57,683 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:48:57,683 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:48:57,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-26 00:48:57,684 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:48:57,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:48:57,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1808732751, now seen corresponding path program 29 times [2022-11-26 00:48:57,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:48:57,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880363653] [2022-11-26 00:48:57,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:48:57,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:48:57,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:48:59,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:48:59,177 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:48:59,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880363653] [2022-11-26 00:48:59,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880363653] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:48:59,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:48:59,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:48:59,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086652013] [2022-11-26 00:48:59,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:48:59,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:48:59,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:48:59,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:48:59,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:48:59,179 INFO L87 Difference]: Start difference. First operand 1556 states and 5360 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:01,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:49:01,327 INFO L93 Difference]: Finished difference Result 2769 states and 8749 transitions. [2022-11-26 00:49:01,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:49:01,335 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:49:01,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:49:01,341 INFO L225 Difference]: With dead ends: 2769 [2022-11-26 00:49:01,341 INFO L226 Difference]: Without dead ends: 2752 [2022-11-26 00:49:01,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:49:01,342 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 256 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 1351 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 1376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:49:01,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 51 Invalid, 1376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1351 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:49:01,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2752 states. [2022-11-26 00:49:01,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2752 to 1554. [2022-11-26 00:49:01,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1553 states have (on average 3.4481648422408244) internal successors, (5355), 1553 states have internal predecessors, (5355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:01,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 5355 transitions. [2022-11-26 00:49:01,386 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 5355 transitions. Word has length 33 [2022-11-26 00:49:01,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:49:01,387 INFO L495 AbstractCegarLoop]: Abstraction has 1554 states and 5355 transitions. [2022-11-26 00:49:01,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:01,387 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 5355 transitions. [2022-11-26 00:49:01,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:49:01,390 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:49:01,390 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:49:01,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-26 00:49:01,391 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:49:01,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:49:01,391 INFO L85 PathProgramCache]: Analyzing trace with hash 966287157, now seen corresponding path program 30 times [2022-11-26 00:49:01,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:49:01,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216498185] [2022-11-26 00:49:01,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:01,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:49:01,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:49:02,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:49:02,777 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:49:02,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216498185] [2022-11-26 00:49:02,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216498185] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:49:02,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:49:02,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:49:02,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748064341] [2022-11-26 00:49:02,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:49:02,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:49:02,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:49:02,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:49:02,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:49:02,779 INFO L87 Difference]: Start difference. First operand 1554 states and 5355 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:04,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:49:04,932 INFO L93 Difference]: Finished difference Result 2761 states and 8733 transitions. [2022-11-26 00:49:04,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:49:04,933 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:49:04,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:49:04,939 INFO L225 Difference]: With dead ends: 2761 [2022-11-26 00:49:04,939 INFO L226 Difference]: Without dead ends: 2748 [2022-11-26 00:49:04,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:49:04,940 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 236 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 1379 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 1404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:49:04,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 39 Invalid, 1404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1379 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:49:04,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2748 states. [2022-11-26 00:49:04,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2748 to 1558. [2022-11-26 00:49:04,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1558 states, 1557 states have (on average 3.443802183686577) internal successors, (5362), 1557 states have internal predecessors, (5362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:04,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 5362 transitions. [2022-11-26 00:49:04,977 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 5362 transitions. Word has length 33 [2022-11-26 00:49:04,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:49:04,978 INFO L495 AbstractCegarLoop]: Abstraction has 1558 states and 5362 transitions. [2022-11-26 00:49:04,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:04,978 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 5362 transitions. [2022-11-26 00:49:04,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:49:04,983 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:49:04,983 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:49:04,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-11-26 00:49:04,984 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:49:04,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:49:04,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1717739181, now seen corresponding path program 31 times [2022-11-26 00:49:04,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:49:04,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135142970] [2022-11-26 00:49:04,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:04,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:49:05,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:49:06,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:49:06,739 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:49:06,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135142970] [2022-11-26 00:49:06,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135142970] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:49:06,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:49:06,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:49:06,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559023748] [2022-11-26 00:49:06,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:49:06,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:49:06,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:49:06,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:49:06,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:49:06,741 INFO L87 Difference]: Start difference. First operand 1558 states and 5362 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:08,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:49:08,812 INFO L93 Difference]: Finished difference Result 2747 states and 8713 transitions. [2022-11-26 00:49:08,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:49:08,813 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:49:08,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:49:08,819 INFO L225 Difference]: With dead ends: 2747 [2022-11-26 00:49:08,819 INFO L226 Difference]: Without dead ends: 2722 [2022-11-26 00:49:08,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:49:08,820 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 243 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 1244 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 1269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:49:08,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 40 Invalid, 1269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1244 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:49:08,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2722 states. [2022-11-26 00:49:08,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2722 to 1548. [2022-11-26 00:49:08,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1548 states, 1547 states have (on average 3.4544279250161605) internal successors, (5344), 1547 states have internal predecessors, (5344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:08,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1548 states to 1548 states and 5344 transitions. [2022-11-26 00:49:08,857 INFO L78 Accepts]: Start accepts. Automaton has 1548 states and 5344 transitions. Word has length 33 [2022-11-26 00:49:08,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:49:08,858 INFO L495 AbstractCegarLoop]: Abstraction has 1548 states and 5344 transitions. [2022-11-26 00:49:08,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:08,858 INFO L276 IsEmpty]: Start isEmpty. Operand 1548 states and 5344 transitions. [2022-11-26 00:49:08,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:49:08,863 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:49:08,863 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:49:08,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-11-26 00:49:08,864 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:49:08,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:49:08,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1067423731, now seen corresponding path program 32 times [2022-11-26 00:49:08,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:49:08,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163512983] [2022-11-26 00:49:08,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:08,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:49:08,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:49:10,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:49:10,469 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:49:10,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163512983] [2022-11-26 00:49:10,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163512983] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:49:10,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:49:10,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:49:10,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218450998] [2022-11-26 00:49:10,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:49:10,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:49:10,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:49:10,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:49:10,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:49:10,472 INFO L87 Difference]: Start difference. First operand 1548 states and 5344 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:12,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:49:12,871 INFO L93 Difference]: Finished difference Result 2783 states and 8781 transitions. [2022-11-26 00:49:12,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-26 00:49:12,872 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:49:12,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:49:12,877 INFO L225 Difference]: With dead ends: 2783 [2022-11-26 00:49:12,877 INFO L226 Difference]: Without dead ends: 2762 [2022-11-26 00:49:12,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=198, Invalid=402, Unknown=0, NotChecked=0, Total=600 [2022-11-26 00:49:12,878 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 246 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 1282 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 1314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:49:12,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 35 Invalid, 1314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1282 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-26 00:49:12,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2762 states. [2022-11-26 00:49:12,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2762 to 1554. [2022-11-26 00:49:12,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1553 states have (on average 3.4520283322601415) internal successors, (5361), 1553 states have internal predecessors, (5361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:12,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 5361 transitions. [2022-11-26 00:49:12,915 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 5361 transitions. Word has length 33 [2022-11-26 00:49:12,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:49:12,916 INFO L495 AbstractCegarLoop]: Abstraction has 1554 states and 5361 transitions. [2022-11-26 00:49:12,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:12,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 5361 transitions. [2022-11-26 00:49:12,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:49:12,919 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:49:12,919 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:49:12,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-11-26 00:49:12,920 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:49:12,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:49:12,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1042040929, now seen corresponding path program 33 times [2022-11-26 00:49:12,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:49:12,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637188841] [2022-11-26 00:49:12,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:12,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:49:12,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:49:14,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:49:14,464 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:49:14,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637188841] [2022-11-26 00:49:14,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637188841] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:49:14,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:49:14,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:49:14,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065388271] [2022-11-26 00:49:14,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:49:14,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:49:14,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:49:14,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:49:14,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:49:14,466 INFO L87 Difference]: Start difference. First operand 1554 states and 5361 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:16,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:49:16,952 INFO L93 Difference]: Finished difference Result 2779 states and 8773 transitions. [2022-11-26 00:49:16,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-26 00:49:16,953 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:49:16,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:49:16,959 INFO L225 Difference]: With dead ends: 2779 [2022-11-26 00:49:16,959 INFO L226 Difference]: Without dead ends: 2768 [2022-11-26 00:49:16,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=233, Invalid=469, Unknown=0, NotChecked=0, Total=702 [2022-11-26 00:49:16,961 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 246 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 1298 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:49:16,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 47 Invalid, 1329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1298 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:49:16,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2768 states. [2022-11-26 00:49:16,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2768 to 1556. [2022-11-26 00:49:17,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1555 states have (on average 3.44951768488746) internal successors, (5364), 1555 states have internal predecessors, (5364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:17,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 5364 transitions. [2022-11-26 00:49:17,004 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 5364 transitions. Word has length 33 [2022-11-26 00:49:17,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:49:17,004 INFO L495 AbstractCegarLoop]: Abstraction has 1556 states and 5364 transitions. [2022-11-26 00:49:17,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:17,004 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 5364 transitions. [2022-11-26 00:49:17,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:49:17,007 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:49:17,007 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:49:17,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-11-26 00:49:17,007 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:49:17,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:49:17,008 INFO L85 PathProgramCache]: Analyzing trace with hash -514688455, now seen corresponding path program 34 times [2022-11-26 00:49:17,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:49:17,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923557491] [2022-11-26 00:49:17,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:17,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:49:17,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:49:18,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:49:18,565 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:49:18,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923557491] [2022-11-26 00:49:18,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923557491] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:49:18,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:49:18,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:49:18,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647503741] [2022-11-26 00:49:18,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:49:18,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:49:18,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:49:18,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:49:18,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:49:18,568 INFO L87 Difference]: Start difference. First operand 1556 states and 5364 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:21,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:49:21,090 INFO L93 Difference]: Finished difference Result 2783 states and 8779 transitions. [2022-11-26 00:49:21,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-26 00:49:21,091 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:49:21,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:49:21,097 INFO L225 Difference]: With dead ends: 2783 [2022-11-26 00:49:21,097 INFO L226 Difference]: Without dead ends: 2764 [2022-11-26 00:49:21,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=215, Invalid=435, Unknown=0, NotChecked=0, Total=650 [2022-11-26 00:49:21,099 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 232 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 1357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:49:21,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 47 Invalid, 1357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1326 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-26 00:49:21,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2764 states. [2022-11-26 00:49:21,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2764 to 1552. [2022-11-26 00:49:21,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1552 states, 1551 states have (on average 3.4532559638942617) internal successors, (5356), 1551 states have internal predecessors, (5356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:21,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1552 states to 1552 states and 5356 transitions. [2022-11-26 00:49:21,140 INFO L78 Accepts]: Start accepts. Automaton has 1552 states and 5356 transitions. Word has length 33 [2022-11-26 00:49:21,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:49:21,140 INFO L495 AbstractCegarLoop]: Abstraction has 1552 states and 5356 transitions. [2022-11-26 00:49:21,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:21,141 INFO L276 IsEmpty]: Start isEmpty. Operand 1552 states and 5356 transitions. [2022-11-26 00:49:21,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:49:21,146 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:49:21,146 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:49:21,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-11-26 00:49:21,146 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:49:21,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:49:21,147 INFO L85 PathProgramCache]: Analyzing trace with hash 857093623, now seen corresponding path program 35 times [2022-11-26 00:49:21,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:49:21,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621357774] [2022-11-26 00:49:21,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:21,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:49:21,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:49:22,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:49:22,432 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:49:22,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621357774] [2022-11-26 00:49:22,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621357774] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:49:22,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:49:22,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:49:22,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687594855] [2022-11-26 00:49:22,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:49:22,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:49:22,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:49:22,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:49:22,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:49:22,434 INFO L87 Difference]: Start difference. First operand 1552 states and 5356 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:24,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:49:24,628 INFO L93 Difference]: Finished difference Result 2809 states and 8823 transitions. [2022-11-26 00:49:24,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-26 00:49:24,628 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:49:24,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:49:24,634 INFO L225 Difference]: With dead ends: 2809 [2022-11-26 00:49:24,634 INFO L226 Difference]: Without dead ends: 2788 [2022-11-26 00:49:24,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=182, Invalid=370, Unknown=0, NotChecked=0, Total=552 [2022-11-26 00:49:24,635 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 251 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 1357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:49:24,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 35 Invalid, 1357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1326 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:49:24,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2788 states. [2022-11-26 00:49:24,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2788 to 1556. [2022-11-26 00:49:24,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1555 states have (on average 3.4488745980707396) internal successors, (5363), 1555 states have internal predecessors, (5363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:24,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 5363 transitions. [2022-11-26 00:49:24,672 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 5363 transitions. Word has length 33 [2022-11-26 00:49:24,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:49:24,672 INFO L495 AbstractCegarLoop]: Abstraction has 1556 states and 5363 transitions. [2022-11-26 00:49:24,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:24,672 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 5363 transitions. [2022-11-26 00:49:24,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:49:24,675 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:49:24,675 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:49:24,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-11-26 00:49:24,676 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:49:24,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:49:24,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1212176807, now seen corresponding path program 36 times [2022-11-26 00:49:24,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:49:24,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057903008] [2022-11-26 00:49:24,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:24,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:49:24,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:49:26,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:49:26,110 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:49:26,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057903008] [2022-11-26 00:49:26,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057903008] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:49:26,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:49:26,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:49:26,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880448393] [2022-11-26 00:49:26,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:49:26,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:49:26,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:49:26,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:49:26,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:49:26,112 INFO L87 Difference]: Start difference. First operand 1556 states and 5363 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:28,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:49:28,128 INFO L93 Difference]: Finished difference Result 2805 states and 8815 transitions. [2022-11-26 00:49:28,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-26 00:49:28,130 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:49:28,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:49:28,138 INFO L225 Difference]: With dead ends: 2805 [2022-11-26 00:49:28,138 INFO L226 Difference]: Without dead ends: 2792 [2022-11-26 00:49:28,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=182, Invalid=370, Unknown=0, NotChecked=0, Total=552 [2022-11-26 00:49:28,139 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 248 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 1400 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 1429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:49:28,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 38 Invalid, 1429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1400 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:49:28,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2792 states. [2022-11-26 00:49:28,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 1560. [2022-11-26 00:49:28,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1560 states, 1559 states have (on average 3.4445157152020527) internal successors, (5370), 1559 states have internal predecessors, (5370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:28,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1560 states to 1560 states and 5370 transitions. [2022-11-26 00:49:28,193 INFO L78 Accepts]: Start accepts. Automaton has 1560 states and 5370 transitions. Word has length 33 [2022-11-26 00:49:28,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:49:28,193 INFO L495 AbstractCegarLoop]: Abstraction has 1560 states and 5370 transitions. [2022-11-26 00:49:28,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:28,194 INFO L276 IsEmpty]: Start isEmpty. Operand 1560 states and 5370 transitions. [2022-11-26 00:49:28,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:49:28,198 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:49:28,199 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:49:28,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-11-26 00:49:28,199 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:49:28,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:49:28,200 INFO L85 PathProgramCache]: Analyzing trace with hash -356870153, now seen corresponding path program 37 times [2022-11-26 00:49:28,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:49:28,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379152832] [2022-11-26 00:49:28,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:28,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:49:28,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:49:29,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:49:29,594 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:49:29,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379152832] [2022-11-26 00:49:29,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379152832] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:49:29,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:49:29,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:49:29,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773054040] [2022-11-26 00:49:29,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:49:29,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:49:29,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:49:29,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:49:29,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:49:29,596 INFO L87 Difference]: Start difference. First operand 1560 states and 5370 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:31,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:49:31,782 INFO L93 Difference]: Finished difference Result 2791 states and 8795 transitions. [2022-11-26 00:49:31,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-26 00:49:31,783 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:49:31,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:49:31,789 INFO L225 Difference]: With dead ends: 2791 [2022-11-26 00:49:31,789 INFO L226 Difference]: Without dead ends: 2768 [2022-11-26 00:49:31,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=182, Invalid=370, Unknown=0, NotChecked=0, Total=552 [2022-11-26 00:49:31,790 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 220 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 1332 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 1360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:49:31,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 37 Invalid, 1360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1332 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:49:31,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2768 states. [2022-11-26 00:49:31,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2768 to 1552. [2022-11-26 00:49:31,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1552 states, 1551 states have (on average 3.451966473243069) internal successors, (5354), 1551 states have internal predecessors, (5354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:31,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1552 states to 1552 states and 5354 transitions. [2022-11-26 00:49:31,854 INFO L78 Accepts]: Start accepts. Automaton has 1552 states and 5354 transitions. Word has length 33 [2022-11-26 00:49:31,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:49:31,854 INFO L495 AbstractCegarLoop]: Abstraction has 1552 states and 5354 transitions. [2022-11-26 00:49:31,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:31,854 INFO L276 IsEmpty]: Start isEmpty. Operand 1552 states and 5354 transitions. [2022-11-26 00:49:31,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:49:31,858 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:49:31,858 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:49:31,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-11-26 00:49:31,859 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:49:31,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:49:31,861 INFO L85 PathProgramCache]: Analyzing trace with hash -951347395, now seen corresponding path program 38 times [2022-11-26 00:49:31,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:49:31,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312311281] [2022-11-26 00:49:31,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:31,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:49:31,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:49:33,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:49:33,332 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:49:33,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312311281] [2022-11-26 00:49:33,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312311281] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:49:33,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:49:33,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:49:33,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260518245] [2022-11-26 00:49:33,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:49:33,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:49:33,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:49:33,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:49:33,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:49:33,334 INFO L87 Difference]: Start difference. First operand 1552 states and 5354 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:35,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:49:35,468 INFO L93 Difference]: Finished difference Result 2797 states and 8800 transitions. [2022-11-26 00:49:35,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-26 00:49:35,469 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:49:35,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:49:35,474 INFO L225 Difference]: With dead ends: 2797 [2022-11-26 00:49:35,475 INFO L226 Difference]: Without dead ends: 2786 [2022-11-26 00:49:35,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=182, Invalid=370, Unknown=0, NotChecked=0, Total=552 [2022-11-26 00:49:35,475 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 264 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 1274 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 1303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:49:35,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 35 Invalid, 1303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1274 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:49:35,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2786 states. [2022-11-26 00:49:35,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2786 to 1556. [2022-11-26 00:49:35,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1555 states have (on average 3.44951768488746) internal successors, (5364), 1555 states have internal predecessors, (5364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:35,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 5364 transitions. [2022-11-26 00:49:35,510 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 5364 transitions. Word has length 33 [2022-11-26 00:49:35,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:49:35,510 INFO L495 AbstractCegarLoop]: Abstraction has 1556 states and 5364 transitions. [2022-11-26 00:49:35,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:35,510 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 5364 transitions. [2022-11-26 00:49:35,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:49:35,514 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:49:35,515 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:49:35,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-11-26 00:49:35,515 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:49:35,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:49:35,515 INFO L85 PathProgramCache]: Analyzing trace with hash -2034935879, now seen corresponding path program 39 times [2022-11-26 00:49:35,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:49:35,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957399710] [2022-11-26 00:49:35,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:35,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:49:35,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:49:36,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:49:36,757 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:49:36,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957399710] [2022-11-26 00:49:36,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957399710] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:49:36,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:49:36,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:49:36,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268403769] [2022-11-26 00:49:36,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:49:36,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:49:36,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:49:36,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:49:36,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:49:36,759 INFO L87 Difference]: Start difference. First operand 1556 states and 5364 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:38,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:49:38,983 INFO L93 Difference]: Finished difference Result 2799 states and 8802 transitions. [2022-11-26 00:49:38,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-26 00:49:38,983 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:49:38,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:49:38,989 INFO L225 Difference]: With dead ends: 2799 [2022-11-26 00:49:38,990 INFO L226 Difference]: Without dead ends: 2784 [2022-11-26 00:49:38,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=182, Invalid=370, Unknown=0, NotChecked=0, Total=552 [2022-11-26 00:49:38,990 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 272 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 1282 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:49:38,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 35 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1282 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:49:38,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2784 states. [2022-11-26 00:49:39,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2784 to 1554. [2022-11-26 00:49:39,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1553 states have (on average 3.4507405022537023) internal successors, (5359), 1553 states have internal predecessors, (5359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:39,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 5359 transitions. [2022-11-26 00:49:39,030 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 5359 transitions. Word has length 33 [2022-11-26 00:49:39,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:49:39,030 INFO L495 AbstractCegarLoop]: Abstraction has 1554 states and 5359 transitions. [2022-11-26 00:49:39,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:39,030 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 5359 transitions. [2022-11-26 00:49:39,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:49:39,034 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:49:39,034 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:49:39,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-11-26 00:49:39,035 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:49:39,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:49:39,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1743182047, now seen corresponding path program 40 times [2022-11-26 00:49:39,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:49:39,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444569510] [2022-11-26 00:49:39,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:39,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:49:39,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:49:40,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:49:40,377 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:49:40,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444569510] [2022-11-26 00:49:40,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444569510] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:49:40,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:49:40,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:49:40,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549304681] [2022-11-26 00:49:40,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:49:40,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:49:40,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:49:40,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:49:40,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:49:40,381 INFO L87 Difference]: Start difference. First operand 1554 states and 5359 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:42,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:49:42,551 INFO L93 Difference]: Finished difference Result 2809 states and 8810 transitions. [2022-11-26 00:49:42,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-26 00:49:42,552 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:49:42,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:49:42,558 INFO L225 Difference]: With dead ends: 2809 [2022-11-26 00:49:42,558 INFO L226 Difference]: Without dead ends: 2798 [2022-11-26 00:49:42,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=182, Invalid=370, Unknown=0, NotChecked=0, Total=552 [2022-11-26 00:49:42,559 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 309 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 1240 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 1268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:49:42,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 48 Invalid, 1268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1240 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:49:42,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2798 states. [2022-11-26 00:49:42,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2798 to 1556. [2022-11-26 00:49:42,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1555 states have (on average 3.4482315112540194) internal successors, (5362), 1555 states have internal predecessors, (5362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:42,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 5362 transitions. [2022-11-26 00:49:42,594 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 5362 transitions. Word has length 33 [2022-11-26 00:49:42,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:49:42,594 INFO L495 AbstractCegarLoop]: Abstraction has 1556 states and 5362 transitions. [2022-11-26 00:49:42,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:42,595 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 5362 transitions. [2022-11-26 00:49:42,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:49:42,598 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:49:42,598 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:49:42,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-11-26 00:49:42,598 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:49:42,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:49:42,599 INFO L85 PathProgramCache]: Analyzing trace with hash -2024432775, now seen corresponding path program 41 times [2022-11-26 00:49:42,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:49:42,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252876474] [2022-11-26 00:49:42,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:42,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:49:42,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:49:43,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:49:43,945 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:49:43,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252876474] [2022-11-26 00:49:43,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252876474] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:49:43,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:49:43,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:49:43,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193046262] [2022-11-26 00:49:43,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:49:43,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:49:43,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:49:43,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:49:43,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:49:43,947 INFO L87 Difference]: Start difference. First operand 1556 states and 5362 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:46,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:49:46,300 INFO L93 Difference]: Finished difference Result 2803 states and 8807 transitions. [2022-11-26 00:49:46,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-26 00:49:46,301 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:49:46,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:49:46,308 INFO L225 Difference]: With dead ends: 2803 [2022-11-26 00:49:46,308 INFO L226 Difference]: Without dead ends: 2786 [2022-11-26 00:49:46,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=182, Invalid=370, Unknown=0, NotChecked=0, Total=552 [2022-11-26 00:49:46,309 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 271 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 1248 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 1276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:49:46,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 48 Invalid, 1276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1248 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:49:46,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2786 states. [2022-11-26 00:49:46,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2786 to 1554. [2022-11-26 00:49:46,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1553 states have (on average 3.449452672247263) internal successors, (5357), 1553 states have internal predecessors, (5357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:46,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 5357 transitions. [2022-11-26 00:49:46,354 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 5357 transitions. Word has length 33 [2022-11-26 00:49:46,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:49:46,354 INFO L495 AbstractCegarLoop]: Abstraction has 1554 states and 5357 transitions. [2022-11-26 00:49:46,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:46,354 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 5357 transitions. [2022-11-26 00:49:46,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:49:46,358 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:49:46,358 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:49:46,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-11-26 00:49:46,358 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:49:46,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:49:46,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1428088927, now seen corresponding path program 42 times [2022-11-26 00:49:46,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:49:46,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446297758] [2022-11-26 00:49:46,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:46,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:49:46,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:49:47,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:49:47,539 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:49:47,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446297758] [2022-11-26 00:49:47,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446297758] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:49:47,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:49:47,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:49:47,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632701238] [2022-11-26 00:49:47,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:49:47,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:49:47,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:49:47,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:49:47,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:49:47,540 INFO L87 Difference]: Start difference. First operand 1554 states and 5357 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:49,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:49:49,310 INFO L93 Difference]: Finished difference Result 2803 states and 8809 transitions. [2022-11-26 00:49:49,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-26 00:49:49,311 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:49:49,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:49:49,316 INFO L225 Difference]: With dead ends: 2803 [2022-11-26 00:49:49,317 INFO L226 Difference]: Without dead ends: 2790 [2022-11-26 00:49:49,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=182, Invalid=370, Unknown=0, NotChecked=0, Total=552 [2022-11-26 00:49:49,317 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 271 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 1242 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 1269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:49:49,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 39 Invalid, 1269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1242 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-26 00:49:49,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2790 states. [2022-11-26 00:49:49,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2790 to 1558. [2022-11-26 00:49:49,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1558 states, 1557 states have (on average 3.445086705202312) internal successors, (5364), 1557 states have internal predecessors, (5364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:49,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 5364 transitions. [2022-11-26 00:49:49,349 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 5364 transitions. Word has length 33 [2022-11-26 00:49:49,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:49:49,349 INFO L495 AbstractCegarLoop]: Abstraction has 1558 states and 5364 transitions. [2022-11-26 00:49:49,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:49,349 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 5364 transitions. [2022-11-26 00:49:49,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:49:49,353 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:49:49,353 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:49:49,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-11-26 00:49:49,353 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:49:49,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:49:49,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1255937411, now seen corresponding path program 43 times [2022-11-26 00:49:49,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:49:49,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029605532] [2022-11-26 00:49:49,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:49,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:49:49,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:49:50,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:49:50,507 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:49:50,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029605532] [2022-11-26 00:49:50,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029605532] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:49:50,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:49:50,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:49:50,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942118859] [2022-11-26 00:49:50,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:49:50,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:49:50,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:49:50,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:49:50,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:49:50,509 INFO L87 Difference]: Start difference. First operand 1558 states and 5364 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:52,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:49:52,457 INFO L93 Difference]: Finished difference Result 2789 states and 8789 transitions. [2022-11-26 00:49:52,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-26 00:49:52,458 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:49:52,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:49:52,463 INFO L225 Difference]: With dead ends: 2789 [2022-11-26 00:49:52,463 INFO L226 Difference]: Without dead ends: 2766 [2022-11-26 00:49:52,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=182, Invalid=370, Unknown=0, NotChecked=0, Total=552 [2022-11-26 00:49:52,464 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 221 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 1353 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 1380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:49:52,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 40 Invalid, 1380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1353 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:49:52,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2766 states. [2022-11-26 00:49:52,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2766 to 1550. [2022-11-26 00:49:52,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1550 states, 1549 states have (on average 3.4531956100710137) internal successors, (5349), 1549 states have internal predecessors, (5349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:52,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1550 states to 1550 states and 5349 transitions. [2022-11-26 00:49:52,496 INFO L78 Accepts]: Start accepts. Automaton has 1550 states and 5349 transitions. Word has length 33 [2022-11-26 00:49:52,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:49:52,497 INFO L495 AbstractCegarLoop]: Abstraction has 1550 states and 5349 transitions. [2022-11-26 00:49:52,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:52,497 INFO L276 IsEmpty]: Start isEmpty. Operand 1550 states and 5349 transitions. [2022-11-26 00:49:52,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:49:52,499 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:49:52,500 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:49:52,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-11-26 00:49:52,500 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:49:52,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:49:52,500 INFO L85 PathProgramCache]: Analyzing trace with hash 220626769, now seen corresponding path program 44 times [2022-11-26 00:49:52,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:49:52,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383422819] [2022-11-26 00:49:52,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:52,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:49:52,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:49:53,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:49:53,653 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:49:53,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383422819] [2022-11-26 00:49:53,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383422819] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:49:53,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:49:53,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:49:53,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691971946] [2022-11-26 00:49:53,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:49:53,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:49:53,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:49:53,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:49:53,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:49:53,655 INFO L87 Difference]: Start difference. First operand 1550 states and 5349 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:55,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:49:55,234 INFO L93 Difference]: Finished difference Result 2749 states and 8716 transitions. [2022-11-26 00:49:55,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-26 00:49:55,235 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:49:55,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:49:55,240 INFO L225 Difference]: With dead ends: 2749 [2022-11-26 00:49:55,240 INFO L226 Difference]: Without dead ends: 2728 [2022-11-26 00:49:55,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=187, Invalid=365, Unknown=0, NotChecked=0, Total=552 [2022-11-26 00:49:55,241 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 211 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 1119 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 1150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:49:55,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 31 Invalid, 1150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1119 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-26 00:49:55,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2728 states. [2022-11-26 00:49:55,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2728 to 1558. [2022-11-26 00:49:55,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1558 states, 1557 states have (on average 3.4470134874759153) internal successors, (5367), 1557 states have internal predecessors, (5367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:55,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 5367 transitions. [2022-11-26 00:49:55,292 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 5367 transitions. Word has length 33 [2022-11-26 00:49:55,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:49:55,292 INFO L495 AbstractCegarLoop]: Abstraction has 1558 states and 5367 transitions. [2022-11-26 00:49:55,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:55,292 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 5367 transitions. [2022-11-26 00:49:55,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:49:55,295 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:49:55,295 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:49:55,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-11-26 00:49:55,295 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:49:55,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:49:55,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1848643661, now seen corresponding path program 45 times [2022-11-26 00:49:55,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:49:55,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105742549] [2022-11-26 00:49:55,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:55,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:49:55,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:49:56,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:49:56,468 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:49:56,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105742549] [2022-11-26 00:49:56,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105742549] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:49:56,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:49:56,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:49:56,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591318680] [2022-11-26 00:49:56,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:49:56,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:49:56,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:49:56,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:49:56,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:49:56,470 INFO L87 Difference]: Start difference. First operand 1558 states and 5367 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:58,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:49:58,121 INFO L93 Difference]: Finished difference Result 2761 states and 8728 transitions. [2022-11-26 00:49:58,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-26 00:49:58,121 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:49:58,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:49:58,127 INFO L225 Difference]: With dead ends: 2761 [2022-11-26 00:49:58,127 INFO L226 Difference]: Without dead ends: 2748 [2022-11-26 00:49:58,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=187, Invalid=365, Unknown=0, NotChecked=0, Total=552 [2022-11-26 00:49:58,127 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 269 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 1074 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 1104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1074 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:49:58,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 33 Invalid, 1104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1074 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-26 00:49:58,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2748 states. [2022-11-26 00:49:58,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2748 to 1562. [2022-11-26 00:49:58,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1562 states, 1561 states have (on average 3.4426649583600257) internal successors, (5374), 1561 states have internal predecessors, (5374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:58,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1562 states to 1562 states and 5374 transitions. [2022-11-26 00:49:58,174 INFO L78 Accepts]: Start accepts. Automaton has 1562 states and 5374 transitions. Word has length 33 [2022-11-26 00:49:58,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:49:58,174 INFO L495 AbstractCegarLoop]: Abstraction has 1562 states and 5374 transitions. [2022-11-26 00:49:58,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:49:58,174 INFO L276 IsEmpty]: Start isEmpty. Operand 1562 states and 5374 transitions. [2022-11-26 00:49:58,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:49:58,176 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:49:58,176 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:49:58,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-11-26 00:49:58,177 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:49:58,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:49:58,178 INFO L85 PathProgramCache]: Analyzing trace with hash -993337007, now seen corresponding path program 46 times [2022-11-26 00:49:58,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:49:58,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846697073] [2022-11-26 00:49:58,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:58,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:49:58,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:49:59,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:49:59,350 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:49:59,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846697073] [2022-11-26 00:49:59,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846697073] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:49:59,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:49:59,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:49:59,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938652267] [2022-11-26 00:49:59,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:49:59,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:49:59,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:49:59,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:49:59,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:49:59,352 INFO L87 Difference]: Start difference. First operand 1562 states and 5374 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:00,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:50:00,802 INFO L93 Difference]: Finished difference Result 2747 states and 8708 transitions. [2022-11-26 00:50:00,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-26 00:50:00,802 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:50:00,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:50:00,808 INFO L225 Difference]: With dead ends: 2747 [2022-11-26 00:50:00,808 INFO L226 Difference]: Without dead ends: 2724 [2022-11-26 00:50:00,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=187, Invalid=365, Unknown=0, NotChecked=0, Total=552 [2022-11-26 00:50:00,808 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 234 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 1127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:50:00,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 38 Invalid, 1127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1098 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-26 00:50:00,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2724 states. [2022-11-26 00:50:00,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2724 to 1554. [2022-11-26 00:50:00,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1553 states have (on average 3.4488087572440436) internal successors, (5356), 1553 states have internal predecessors, (5356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:00,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 5356 transitions. [2022-11-26 00:50:00,838 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 5356 transitions. Word has length 33 [2022-11-26 00:50:00,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:50:00,839 INFO L495 AbstractCegarLoop]: Abstraction has 1554 states and 5356 transitions. [2022-11-26 00:50:00,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:00,839 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 5356 transitions. [2022-11-26 00:50:00,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:50:00,841 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:50:00,841 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:50:00,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-11-26 00:50:00,841 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:50:00,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:50:00,842 INFO L85 PathProgramCache]: Analyzing trace with hash 22210681, now seen corresponding path program 47 times [2022-11-26 00:50:00,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:50:00,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320487054] [2022-11-26 00:50:00,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:00,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:50:00,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:01,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:50:01,993 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:50:01,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320487054] [2022-11-26 00:50:01,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320487054] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:50:01,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:50:01,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:50:01,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76919026] [2022-11-26 00:50:01,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:50:01,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:50:01,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:50:01,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:50:01,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:50:01,995 INFO L87 Difference]: Start difference. First operand 1554 states and 5356 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:03,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:50:03,802 INFO L93 Difference]: Finished difference Result 2755 states and 8713 transitions. [2022-11-26 00:50:03,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-26 00:50:03,803 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:50:03,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:50:03,809 INFO L225 Difference]: With dead ends: 2755 [2022-11-26 00:50:03,809 INFO L226 Difference]: Without dead ends: 2742 [2022-11-26 00:50:03,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=189, Invalid=363, Unknown=0, NotChecked=0, Total=552 [2022-11-26 00:50:03,810 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 234 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 1276 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 1305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:50:03,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 41 Invalid, 1305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1276 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:50:03,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2742 states. [2022-11-26 00:50:03,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2742 to 1562. [2022-11-26 00:50:03,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1562 states, 1561 states have (on average 3.4426649583600257) internal successors, (5374), 1561 states have internal predecessors, (5374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:03,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1562 states to 1562 states and 5374 transitions. [2022-11-26 00:50:03,849 INFO L78 Accepts]: Start accepts. Automaton has 1562 states and 5374 transitions. Word has length 33 [2022-11-26 00:50:03,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:50:03,849 INFO L495 AbstractCegarLoop]: Abstraction has 1562 states and 5374 transitions. [2022-11-26 00:50:03,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:03,850 INFO L276 IsEmpty]: Start isEmpty. Operand 1562 states and 5374 transitions. [2022-11-26 00:50:03,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:50:03,854 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:50:03,854 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:50:03,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-11-26 00:50:03,854 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:50:03,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:50:03,855 INFO L85 PathProgramCache]: Analyzing trace with hash 877517335, now seen corresponding path program 48 times [2022-11-26 00:50:03,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:50:03,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924570422] [2022-11-26 00:50:03,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:03,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:50:03,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:05,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:50:05,022 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:50:05,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924570422] [2022-11-26 00:50:05,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924570422] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:50:05,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:50:05,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:50:05,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105644793] [2022-11-26 00:50:05,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:50:05,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:50:05,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:50:05,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:50:05,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:50:05,024 INFO L87 Difference]: Start difference. First operand 1562 states and 5374 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:06,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:50:06,626 INFO L93 Difference]: Finished difference Result 2741 states and 8693 transitions. [2022-11-26 00:50:06,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-26 00:50:06,627 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:50:06,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:50:06,632 INFO L225 Difference]: With dead ends: 2741 [2022-11-26 00:50:06,633 INFO L226 Difference]: Without dead ends: 2722 [2022-11-26 00:50:06,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=189, Invalid=363, Unknown=0, NotChecked=0, Total=552 [2022-11-26 00:50:06,633 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 237 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 1111 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:50:06,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 37 Invalid, 1140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1111 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-26 00:50:06,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2722 states. [2022-11-26 00:50:06,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2722 to 1558. [2022-11-26 00:50:06,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1558 states, 1557 states have (on average 3.4444444444444446) internal successors, (5363), 1557 states have internal predecessors, (5363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:06,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 5363 transitions. [2022-11-26 00:50:06,684 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 5363 transitions. Word has length 33 [2022-11-26 00:50:06,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:50:06,684 INFO L495 AbstractCegarLoop]: Abstraction has 1558 states and 5363 transitions. [2022-11-26 00:50:06,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:06,685 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 5363 transitions. [2022-11-26 00:50:06,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:50:06,689 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:50:06,689 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:50:06,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-11-26 00:50:06,689 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:50:06,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:50:06,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1917113159, now seen corresponding path program 49 times [2022-11-26 00:50:06,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:50:06,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807833953] [2022-11-26 00:50:06,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:06,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:50:06,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:08,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:50:08,078 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:50:08,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807833953] [2022-11-26 00:50:08,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807833953] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:50:08,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:50:08,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:50:08,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075204154] [2022-11-26 00:50:08,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:50:08,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:50:08,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:50:08,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:50:08,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:50:08,079 INFO L87 Difference]: Start difference. First operand 1558 states and 5363 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:09,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:50:09,754 INFO L93 Difference]: Finished difference Result 2721 states and 8662 transitions. [2022-11-26 00:50:09,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-26 00:50:09,754 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:50:09,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:50:09,760 INFO L225 Difference]: With dead ends: 2721 [2022-11-26 00:50:09,760 INFO L226 Difference]: Without dead ends: 2696 [2022-11-26 00:50:09,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=191, Invalid=361, Unknown=0, NotChecked=0, Total=552 [2022-11-26 00:50:09,760 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 178 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 1186 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:50:09,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 35 Invalid, 1215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1186 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-26 00:50:09,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2696 states. [2022-11-26 00:50:09,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2696 to 1550. [2022-11-26 00:50:09,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1550 states, 1549 states have (on average 3.451904454486766) internal successors, (5347), 1549 states have internal predecessors, (5347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:09,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1550 states to 1550 states and 5347 transitions. [2022-11-26 00:50:09,796 INFO L78 Accepts]: Start accepts. Automaton has 1550 states and 5347 transitions. Word has length 33 [2022-11-26 00:50:09,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:50:09,796 INFO L495 AbstractCegarLoop]: Abstraction has 1550 states and 5347 transitions. [2022-11-26 00:50:09,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:09,796 INFO L276 IsEmpty]: Start isEmpty. Operand 1550 states and 5347 transitions. [2022-11-26 00:50:09,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:50:09,799 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:50:09,800 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:50:09,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-11-26 00:50:09,800 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:50:09,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:50:09,800 INFO L85 PathProgramCache]: Analyzing trace with hash 22891069, now seen corresponding path program 50 times [2022-11-26 00:50:09,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:50:09,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94487881] [2022-11-26 00:50:09,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:09,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:50:09,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:11,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:50:11,077 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:50:11,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94487881] [2022-11-26 00:50:11,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94487881] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:50:11,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:50:11,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:50:11,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443532576] [2022-11-26 00:50:11,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:50:11,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:50:11,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:50:11,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:50:11,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:50:11,078 INFO L87 Difference]: Start difference. First operand 1550 states and 5347 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:13,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:50:13,105 INFO L93 Difference]: Finished difference Result 2787 states and 8772 transitions. [2022-11-26 00:50:13,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-26 00:50:13,106 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:50:13,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:50:13,111 INFO L225 Difference]: With dead ends: 2787 [2022-11-26 00:50:13,111 INFO L226 Difference]: Without dead ends: 2776 [2022-11-26 00:50:13,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=201, Invalid=399, Unknown=0, NotChecked=0, Total=600 [2022-11-26 00:50:13,112 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 290 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 1236 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 1265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:50:13,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 47 Invalid, 1265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1236 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:50:13,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2776 states. [2022-11-26 00:50:13,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2776 to 1556. [2022-11-26 00:50:13,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1555 states have (on average 3.44951768488746) internal successors, (5364), 1555 states have internal predecessors, (5364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:13,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 5364 transitions. [2022-11-26 00:50:13,147 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 5364 transitions. Word has length 33 [2022-11-26 00:50:13,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:50:13,147 INFO L495 AbstractCegarLoop]: Abstraction has 1556 states and 5364 transitions. [2022-11-26 00:50:13,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:13,148 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 5364 transitions. [2022-11-26 00:50:13,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:50:13,150 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:50:13,150 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:50:13,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-11-26 00:50:13,151 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:50:13,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:50:13,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1060697415, now seen corresponding path program 51 times [2022-11-26 00:50:13,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:50:13,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273810127] [2022-11-26 00:50:13,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:13,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:50:13,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:14,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:50:14,589 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:50:14,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273810127] [2022-11-26 00:50:14,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273810127] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:50:14,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:50:14,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:50:14,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573324066] [2022-11-26 00:50:14,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:50:14,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:50:14,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:50:14,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:50:14,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:50:14,590 INFO L87 Difference]: Start difference. First operand 1556 states and 5364 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:16,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:50:16,362 INFO L93 Difference]: Finished difference Result 2789 states and 8774 transitions. [2022-11-26 00:50:16,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-26 00:50:16,362 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:50:16,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:50:16,368 INFO L225 Difference]: With dead ends: 2789 [2022-11-26 00:50:16,368 INFO L226 Difference]: Without dead ends: 2774 [2022-11-26 00:50:16,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=201, Invalid=399, Unknown=0, NotChecked=0, Total=600 [2022-11-26 00:50:16,369 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 301 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 1151 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 1180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:50:16,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 37 Invalid, 1180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1151 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-26 00:50:16,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2774 states. [2022-11-26 00:50:16,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2774 to 1554. [2022-11-26 00:50:16,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1553 states have (on average 3.4507405022537023) internal successors, (5359), 1553 states have internal predecessors, (5359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:16,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 5359 transitions. [2022-11-26 00:50:16,406 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 5359 transitions. Word has length 33 [2022-11-26 00:50:16,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:50:16,406 INFO L495 AbstractCegarLoop]: Abstraction has 1554 states and 5359 transitions. [2022-11-26 00:50:16,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:16,407 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 5359 transitions. [2022-11-26 00:50:16,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:50:16,409 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:50:16,409 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:50:16,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-11-26 00:50:16,409 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:50:16,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:50:16,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1577546785, now seen corresponding path program 52 times [2022-11-26 00:50:16,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:50:16,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56912236] [2022-11-26 00:50:16,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:16,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:50:16,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:17,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:50:17,784 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:50:17,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56912236] [2022-11-26 00:50:17,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56912236] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:50:17,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:50:17,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:50:17,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465621814] [2022-11-26 00:50:17,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:50:17,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:50:17,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:50:17,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:50:17,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:50:17,786 INFO L87 Difference]: Start difference. First operand 1554 states and 5359 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:20,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:50:20,074 INFO L93 Difference]: Finished difference Result 2775 states and 8757 transitions. [2022-11-26 00:50:20,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-26 00:50:20,075 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:50:20,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:50:20,081 INFO L225 Difference]: With dead ends: 2775 [2022-11-26 00:50:20,081 INFO L226 Difference]: Without dead ends: 2764 [2022-11-26 00:50:20,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=236, Invalid=466, Unknown=0, NotChecked=0, Total=702 [2022-11-26 00:50:20,081 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 259 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 1319 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 1349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:50:20,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 54 Invalid, 1349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1319 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:50:20,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2764 states. [2022-11-26 00:50:20,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2764 to 1556. [2022-11-26 00:50:20,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1555 states have (on average 3.4482315112540194) internal successors, (5362), 1555 states have internal predecessors, (5362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:20,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 5362 transitions. [2022-11-26 00:50:20,118 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 5362 transitions. Word has length 33 [2022-11-26 00:50:20,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:50:20,118 INFO L495 AbstractCegarLoop]: Abstraction has 1556 states and 5362 transitions. [2022-11-26 00:50:20,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:20,118 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 5362 transitions. [2022-11-26 00:50:20,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:50:20,121 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:50:20,121 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:50:20,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-11-26 00:50:20,121 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:50:20,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:50:20,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1050194311, now seen corresponding path program 53 times [2022-11-26 00:50:20,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:50:20,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812369285] [2022-11-26 00:50:20,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:20,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:50:20,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:21,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:50:21,410 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:50:21,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812369285] [2022-11-26 00:50:21,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812369285] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:50:21,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:50:21,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:50:21,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118638607] [2022-11-26 00:50:21,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:50:21,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:50:21,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:50:21,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:50:21,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:50:21,411 INFO L87 Difference]: Start difference. First operand 1556 states and 5362 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:23,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:50:23,452 INFO L93 Difference]: Finished difference Result 2777 states and 8760 transitions. [2022-11-26 00:50:23,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-26 00:50:23,453 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:50:23,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:50:23,459 INFO L225 Difference]: With dead ends: 2777 [2022-11-26 00:50:23,459 INFO L226 Difference]: Without dead ends: 2760 [2022-11-26 00:50:23,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=218, Invalid=432, Unknown=0, NotChecked=0, Total=650 [2022-11-26 00:50:23,460 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 239 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 1273 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 1303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:50:23,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 54 Invalid, 1303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1273 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:50:23,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2760 states. [2022-11-26 00:50:23,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2760 to 1554. [2022-11-26 00:50:23,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1553 states have (on average 3.449452672247263) internal successors, (5357), 1553 states have internal predecessors, (5357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:23,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 5357 transitions. [2022-11-26 00:50:23,503 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 5357 transitions. Word has length 33 [2022-11-26 00:50:23,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:50:23,503 INFO L495 AbstractCegarLoop]: Abstraction has 1554 states and 5357 transitions. [2022-11-26 00:50:23,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:23,504 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 5357 transitions. [2022-11-26 00:50:23,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:50:23,508 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:50:23,508 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:50:23,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-11-26 00:50:23,508 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:50:23,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:50:23,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1892639905, now seen corresponding path program 54 times [2022-11-26 00:50:23,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:50:23,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330858661] [2022-11-26 00:50:23,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:23,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:50:23,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:24,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:50:24,587 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:50:24,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330858661] [2022-11-26 00:50:24,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330858661] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:50:24,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:50:24,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:50:24,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691669526] [2022-11-26 00:50:24,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:50:24,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:50:24,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:50:24,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:50:24,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:50:24,589 INFO L87 Difference]: Start difference. First operand 1554 states and 5357 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:26,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:50:26,361 INFO L93 Difference]: Finished difference Result 2793 states and 8781 transitions. [2022-11-26 00:50:26,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-26 00:50:26,361 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:50:26,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:50:26,366 INFO L225 Difference]: With dead ends: 2793 [2022-11-26 00:50:26,367 INFO L226 Difference]: Without dead ends: 2780 [2022-11-26 00:50:26,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=201, Invalid=399, Unknown=0, NotChecked=0, Total=600 [2022-11-26 00:50:26,367 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 277 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 1232 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 1260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:50:26,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 46 Invalid, 1260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1232 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-26 00:50:26,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2780 states. [2022-11-26 00:50:26,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2780 to 1558. [2022-11-26 00:50:26,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1558 states, 1557 states have (on average 3.445086705202312) internal successors, (5364), 1557 states have internal predecessors, (5364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:26,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 5364 transitions. [2022-11-26 00:50:26,414 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 5364 transitions. Word has length 33 [2022-11-26 00:50:26,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:50:26,414 INFO L495 AbstractCegarLoop]: Abstraction has 1558 states and 5364 transitions. [2022-11-26 00:50:26,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:26,415 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 5364 transitions. [2022-11-26 00:50:26,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:50:26,418 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:50:26,419 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:50:26,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-11-26 00:50:26,419 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:50:26,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:50:26,419 INFO L85 PathProgramCache]: Analyzing trace with hash -281698947, now seen corresponding path program 55 times [2022-11-26 00:50:26,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:50:26,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229503467] [2022-11-26 00:50:26,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:26,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:50:26,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:27,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:50:27,651 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:50:27,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229503467] [2022-11-26 00:50:27,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229503467] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:50:27,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:50:27,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:50:27,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597128571] [2022-11-26 00:50:27,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:50:27,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:50:27,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:50:27,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:50:27,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:50:27,653 INFO L87 Difference]: Start difference. First operand 1558 states and 5364 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:29,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:50:29,663 INFO L93 Difference]: Finished difference Result 2789 states and 8770 transitions. [2022-11-26 00:50:29,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-26 00:50:29,664 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:50:29,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:50:29,669 INFO L225 Difference]: With dead ends: 2789 [2022-11-26 00:50:29,669 INFO L226 Difference]: Without dead ends: 2768 [2022-11-26 00:50:29,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=201, Invalid=399, Unknown=0, NotChecked=0, Total=600 [2022-11-26 00:50:29,670 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 243 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 1258 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 1286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:50:29,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 46 Invalid, 1286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1258 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:50:29,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2768 states. [2022-11-26 00:50:29,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2768 to 1552. [2022-11-26 00:50:29,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1552 states, 1551 states have (on average 3.4506769825918764) internal successors, (5352), 1551 states have internal predecessors, (5352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:29,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1552 states to 1552 states and 5352 transitions. [2022-11-26 00:50:29,709 INFO L78 Accepts]: Start accepts. Automaton has 1552 states and 5352 transitions. Word has length 33 [2022-11-26 00:50:29,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:50:29,710 INFO L495 AbstractCegarLoop]: Abstraction has 1552 states and 5352 transitions. [2022-11-26 00:50:29,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:29,710 INFO L276 IsEmpty]: Start isEmpty. Operand 1552 states and 5352 transitions. [2022-11-26 00:50:29,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:50:29,713 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:50:29,713 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:50:29,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-11-26 00:50:29,713 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:50:29,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:50:29,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1526439421, now seen corresponding path program 56 times [2022-11-26 00:50:29,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:50:29,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111630694] [2022-11-26 00:50:29,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:29,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:50:29,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:31,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:50:31,069 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:50:31,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111630694] [2022-11-26 00:50:31,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111630694] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:50:31,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:50:31,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:50:31,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714129565] [2022-11-26 00:50:31,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:50:31,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:50:31,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:50:31,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:50:31,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:50:31,071 INFO L87 Difference]: Start difference. First operand 1552 states and 5352 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:33,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:50:33,169 INFO L93 Difference]: Finished difference Result 2769 states and 8741 transitions. [2022-11-26 00:50:33,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-26 00:50:33,170 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:50:33,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:50:33,175 INFO L225 Difference]: With dead ends: 2769 [2022-11-26 00:50:33,175 INFO L226 Difference]: Without dead ends: 2758 [2022-11-26 00:50:33,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=241, Invalid=461, Unknown=0, NotChecked=0, Total=702 [2022-11-26 00:50:33,176 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 266 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 1271 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 1304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:50:33,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 47 Invalid, 1304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1271 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:50:33,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2758 states. [2022-11-26 00:50:33,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2758 to 1556. [2022-11-26 00:50:33,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1555 states have (on average 3.446945337620579) internal successors, (5360), 1555 states have internal predecessors, (5360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:33,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 5360 transitions. [2022-11-26 00:50:33,206 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 5360 transitions. Word has length 33 [2022-11-26 00:50:33,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:50:33,207 INFO L495 AbstractCegarLoop]: Abstraction has 1556 states and 5360 transitions. [2022-11-26 00:50:33,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:33,207 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 5360 transitions. [2022-11-26 00:50:33,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:50:33,209 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:50:33,209 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:50:33,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-11-26 00:50:33,210 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:50:33,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:50:33,210 INFO L85 PathProgramCache]: Analyzing trace with hash 442850937, now seen corresponding path program 57 times [2022-11-26 00:50:33,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:50:33,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580559460] [2022-11-26 00:50:33,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:33,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:50:33,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:34,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:50:34,281 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:50:34,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580559460] [2022-11-26 00:50:34,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580559460] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:50:34,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:50:34,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:50:34,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062958178] [2022-11-26 00:50:34,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:50:34,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:50:34,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:50:34,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:50:34,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:50:34,283 INFO L87 Difference]: Start difference. First operand 1556 states and 5360 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:36,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:50:36,253 INFO L93 Difference]: Finished difference Result 2769 states and 8740 transitions. [2022-11-26 00:50:36,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-26 00:50:36,254 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:50:36,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:50:36,259 INFO L225 Difference]: With dead ends: 2769 [2022-11-26 00:50:36,259 INFO L226 Difference]: Without dead ends: 2754 [2022-11-26 00:50:36,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=223, Invalid=427, Unknown=0, NotChecked=0, Total=650 [2022-11-26 00:50:36,260 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 237 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 1289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:50:36,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 40 Invalid, 1289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1257 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:50:36,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2754 states. [2022-11-26 00:50:36,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2754 to 1554. [2022-11-26 00:50:36,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1553 states have (on average 3.4481648422408244) internal successors, (5355), 1553 states have internal predecessors, (5355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:36,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 5355 transitions. [2022-11-26 00:50:36,299 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 5355 transitions. Word has length 33 [2022-11-26 00:50:36,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:50:36,299 INFO L495 AbstractCegarLoop]: Abstraction has 1554 states and 5355 transitions. [2022-11-26 00:50:36,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:36,299 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 5355 transitions. [2022-11-26 00:50:36,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:50:36,302 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:50:36,302 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:50:36,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-11-26 00:50:36,303 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:50:36,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:50:36,303 INFO L85 PathProgramCache]: Analyzing trace with hash -63495329, now seen corresponding path program 58 times [2022-11-26 00:50:36,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:50:36,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687172813] [2022-11-26 00:50:36,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:36,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:50:36,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:37,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:50:37,686 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:50:37,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687172813] [2022-11-26 00:50:37,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687172813] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:50:37,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:50:37,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:50:37,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671182027] [2022-11-26 00:50:37,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:50:37,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:50:37,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:50:37,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:50:37,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:50:37,688 INFO L87 Difference]: Start difference. First operand 1554 states and 5355 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:39,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:50:39,687 INFO L93 Difference]: Finished difference Result 2757 states and 8726 transitions. [2022-11-26 00:50:39,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-26 00:50:39,688 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:50:39,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:50:39,693 INFO L225 Difference]: With dead ends: 2757 [2022-11-26 00:50:39,694 INFO L226 Difference]: Without dead ends: 2738 [2022-11-26 00:50:39,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=225, Invalid=425, Unknown=0, NotChecked=0, Total=650 [2022-11-26 00:50:39,694 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 235 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 1110 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 1142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:50:39,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 37 Invalid, 1142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1110 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:50:39,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2738 states. [2022-11-26 00:50:39,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2738 to 1552. [2022-11-26 00:50:39,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1552 states, 1551 states have (on average 3.4493874919406835) internal successors, (5350), 1551 states have internal predecessors, (5350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:39,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1552 states to 1552 states and 5350 transitions. [2022-11-26 00:50:39,727 INFO L78 Accepts]: Start accepts. Automaton has 1552 states and 5350 transitions. Word has length 33 [2022-11-26 00:50:39,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:50:39,727 INFO L495 AbstractCegarLoop]: Abstraction has 1552 states and 5350 transitions. [2022-11-26 00:50:39,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:39,727 INFO L276 IsEmpty]: Start isEmpty. Operand 1552 states and 5350 transitions. [2022-11-26 00:50:39,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:50:39,730 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:50:39,730 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:50:39,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-11-26 00:50:39,730 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:50:39,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:50:39,731 INFO L85 PathProgramCache]: Analyzing trace with hash -409504967, now seen corresponding path program 59 times [2022-11-26 00:50:39,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:50:39,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909850310] [2022-11-26 00:50:39,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:39,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:50:39,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:40,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:50:40,899 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:50:40,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909850310] [2022-11-26 00:50:40,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909850310] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:50:40,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:50:40,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:50:40,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115975746] [2022-11-26 00:50:40,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:50:40,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:50:40,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:50:40,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:50:40,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:50:40,901 INFO L87 Difference]: Start difference. First operand 1552 states and 5350 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:42,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:50:42,642 INFO L93 Difference]: Finished difference Result 2761 states and 8723 transitions. [2022-11-26 00:50:42,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-26 00:50:42,643 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:50:42,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:50:42,649 INFO L225 Difference]: With dead ends: 2761 [2022-11-26 00:50:42,649 INFO L226 Difference]: Without dead ends: 2748 [2022-11-26 00:50:42,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=203, Invalid=397, Unknown=0, NotChecked=0, Total=600 [2022-11-26 00:50:42,649 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 256 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 1147 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 1175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:50:42,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 41 Invalid, 1175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1147 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-26 00:50:42,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2748 states. [2022-11-26 00:50:42,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2748 to 1560. [2022-11-26 00:50:42,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1560 states, 1559 states have (on average 3.4432328415651057) internal successors, (5368), 1559 states have internal predecessors, (5368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:42,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1560 states to 1560 states and 5368 transitions. [2022-11-26 00:50:42,684 INFO L78 Accepts]: Start accepts. Automaton has 1560 states and 5368 transitions. Word has length 33 [2022-11-26 00:50:42,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:50:42,684 INFO L495 AbstractCegarLoop]: Abstraction has 1560 states and 5368 transitions. [2022-11-26 00:50:42,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:42,685 INFO L276 IsEmpty]: Start isEmpty. Operand 1560 states and 5368 transitions. [2022-11-26 00:50:42,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:50:42,687 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:50:42,687 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:50:42,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-11-26 00:50:42,688 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:50:42,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:50:42,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1201435991, now seen corresponding path program 60 times [2022-11-26 00:50:42,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:50:42,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377370849] [2022-11-26 00:50:42,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:42,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:50:42,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:43,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:50:43,832 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:50:43,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377370849] [2022-11-26 00:50:43,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377370849] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:50:43,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:50:43,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:50:43,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789707934] [2022-11-26 00:50:43,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:50:43,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:50:43,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:50:43,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:50:43,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:50:43,833 INFO L87 Difference]: Start difference. First operand 1560 states and 5368 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:45,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:50:45,680 INFO L93 Difference]: Finished difference Result 2747 states and 8703 transitions. [2022-11-26 00:50:45,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-26 00:50:45,680 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:50:45,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:50:45,685 INFO L225 Difference]: With dead ends: 2747 [2022-11-26 00:50:45,686 INFO L226 Difference]: Without dead ends: 2728 [2022-11-26 00:50:45,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=203, Invalid=397, Unknown=0, NotChecked=0, Total=600 [2022-11-26 00:50:45,690 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 224 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 1241 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 1269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:50:45,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 51 Invalid, 1269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1241 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:50:45,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2728 states. [2022-11-26 00:50:45,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2728 to 1556. [2022-11-26 00:50:45,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1555 states have (on average 3.445016077170418) internal successors, (5357), 1555 states have internal predecessors, (5357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:45,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 5357 transitions. [2022-11-26 00:50:45,737 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 5357 transitions. Word has length 33 [2022-11-26 00:50:45,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:50:45,737 INFO L495 AbstractCegarLoop]: Abstraction has 1556 states and 5357 transitions. [2022-11-26 00:50:45,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:45,737 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 5357 transitions. [2022-11-26 00:50:45,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:50:45,743 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:50:45,744 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:50:45,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-11-26 00:50:45,744 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:50:45,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:50:45,744 INFO L85 PathProgramCache]: Analyzing trace with hash -83908743, now seen corresponding path program 61 times [2022-11-26 00:50:45,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:50:45,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891404217] [2022-11-26 00:50:45,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:45,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:50:45,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:46,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:50:46,935 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:50:46,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891404217] [2022-11-26 00:50:46,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891404217] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:50:46,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:50:46,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:50:46,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872293220] [2022-11-26 00:50:46,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:50:46,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:50:46,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:50:46,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:50:46,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:50:46,936 INFO L87 Difference]: Start difference. First operand 1556 states and 5357 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:48,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:50:48,788 INFO L93 Difference]: Finished difference Result 2727 states and 8672 transitions. [2022-11-26 00:50:48,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-26 00:50:48,788 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:50:48,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:50:48,794 INFO L225 Difference]: With dead ends: 2727 [2022-11-26 00:50:48,794 INFO L226 Difference]: Without dead ends: 2702 [2022-11-26 00:50:48,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=205, Invalid=395, Unknown=0, NotChecked=0, Total=600 [2022-11-26 00:50:48,794 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 176 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 1490 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 1519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:50:48,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 50 Invalid, 1519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1490 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:50:48,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2702 states. [2022-11-26 00:50:48,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2702 to 1548. [2022-11-26 00:50:48,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1548 states, 1547 states have (on average 3.453135100193924) internal successors, (5342), 1547 states have internal predecessors, (5342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:48,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1548 states to 1548 states and 5342 transitions. [2022-11-26 00:50:48,830 INFO L78 Accepts]: Start accepts. Automaton has 1548 states and 5342 transitions. Word has length 33 [2022-11-26 00:50:48,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:50:48,830 INFO L495 AbstractCegarLoop]: Abstraction has 1548 states and 5342 transitions. [2022-11-26 00:50:48,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:48,830 INFO L276 IsEmpty]: Start isEmpty. Operand 1548 states and 5342 transitions. [2022-11-26 00:50:48,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:50:48,833 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:50:48,833 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:50:48,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-11-26 00:50:48,833 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:50:48,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:50:48,833 INFO L85 PathProgramCache]: Analyzing trace with hash -846657675, now seen corresponding path program 62 times [2022-11-26 00:50:48,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:50:48,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061909804] [2022-11-26 00:50:48,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:48,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:50:48,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:50,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:50:50,049 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:50:50,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061909804] [2022-11-26 00:50:50,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061909804] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:50:50,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:50:50,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:50:50,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715000110] [2022-11-26 00:50:50,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:50:50,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:50:50,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:50:50,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:50:50,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:50:50,050 INFO L87 Difference]: Start difference. First operand 1548 states and 5342 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:52,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:50:52,031 INFO L93 Difference]: Finished difference Result 2777 states and 8753 transitions. [2022-11-26 00:50:52,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:50:52,032 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:50:52,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:50:52,037 INFO L225 Difference]: With dead ends: 2777 [2022-11-26 00:50:52,037 INFO L226 Difference]: Without dead ends: 2764 [2022-11-26 00:50:52,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=164, Invalid=342, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:50:52,037 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 238 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 1377 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 1405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:50:52,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 40 Invalid, 1405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1377 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:50:52,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2764 states. [2022-11-26 00:50:52,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2764 to 1554. [2022-11-26 00:50:52,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1553 states have (on average 3.4507405022537023) internal successors, (5359), 1553 states have internal predecessors, (5359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:52,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 5359 transitions. [2022-11-26 00:50:52,069 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 5359 transitions. Word has length 33 [2022-11-26 00:50:52,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:50:52,069 INFO L495 AbstractCegarLoop]: Abstraction has 1554 states and 5359 transitions. [2022-11-26 00:50:52,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:52,069 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 5359 transitions. [2022-11-26 00:50:52,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:50:52,072 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:50:52,072 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:50:52,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-11-26 00:50:52,072 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:50:52,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:50:52,072 INFO L85 PathProgramCache]: Analyzing trace with hash 690333053, now seen corresponding path program 63 times [2022-11-26 00:50:52,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:50:52,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432066309] [2022-11-26 00:50:52,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:52,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:50:52,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:53,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:50:53,339 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:50:53,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432066309] [2022-11-26 00:50:53,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432066309] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:50:53,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:50:53,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:50:53,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137298388] [2022-11-26 00:50:53,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:50:53,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:50:53,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:50:53,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:50:53,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:50:53,341 INFO L87 Difference]: Start difference. First operand 1554 states and 5359 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:55,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:50:55,271 INFO L93 Difference]: Finished difference Result 2791 states and 8769 transitions. [2022-11-26 00:50:55,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:50:55,271 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:50:55,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:50:55,277 INFO L225 Difference]: With dead ends: 2791 [2022-11-26 00:50:55,277 INFO L226 Difference]: Without dead ends: 2780 [2022-11-26 00:50:55,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=164, Invalid=342, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:50:55,277 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 327 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 1249 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 1276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:50:55,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 38 Invalid, 1276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1249 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:50:55,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2780 states. [2022-11-26 00:50:55,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2780 to 1556. [2022-11-26 00:50:55,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1555 states have (on average 3.4482315112540194) internal successors, (5362), 1555 states have internal predecessors, (5362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:55,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 5362 transitions. [2022-11-26 00:50:55,311 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 5362 transitions. Word has length 33 [2022-11-26 00:50:55,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:50:55,311 INFO L495 AbstractCegarLoop]: Abstraction has 1556 states and 5362 transitions. [2022-11-26 00:50:55,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:55,312 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 5362 transitions. [2022-11-26 00:50:55,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:50:55,314 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:50:55,314 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:50:55,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-11-26 00:50:55,314 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:50:55,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:50:55,315 INFO L85 PathProgramCache]: Analyzing trace with hash -393255431, now seen corresponding path program 64 times [2022-11-26 00:50:55,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:50:55,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209353729] [2022-11-26 00:50:55,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:55,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:50:55,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:56,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:50:56,565 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:50:56,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209353729] [2022-11-26 00:50:56,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209353729] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:50:56,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:50:56,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:50:56,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017365685] [2022-11-26 00:50:56,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:50:56,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:50:56,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:50:56,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:50:56,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:50:56,567 INFO L87 Difference]: Start difference. First operand 1556 states and 5362 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:58,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:50:58,450 INFO L93 Difference]: Finished difference Result 2779 states and 8755 transitions. [2022-11-26 00:50:58,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:50:58,451 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:50:58,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:50:58,457 INFO L225 Difference]: With dead ends: 2779 [2022-11-26 00:50:58,457 INFO L226 Difference]: Without dead ends: 2762 [2022-11-26 00:50:58,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=164, Invalid=342, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:50:58,457 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 287 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 1239 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 1266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:50:58,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 35 Invalid, 1266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1239 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:50:58,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2762 states. [2022-11-26 00:50:58,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2762 to 1552. [2022-11-26 00:50:58,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1552 states, 1551 states have (on average 3.451966473243069) internal successors, (5354), 1551 states have internal predecessors, (5354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:58,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1552 states to 1552 states and 5354 transitions. [2022-11-26 00:50:58,491 INFO L78 Accepts]: Start accepts. Automaton has 1552 states and 5354 transitions. Word has length 33 [2022-11-26 00:50:58,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:50:58,491 INFO L495 AbstractCegarLoop]: Abstraction has 1552 states and 5354 transitions. [2022-11-26 00:50:58,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:50:58,491 INFO L276 IsEmpty]: Start isEmpty. Operand 1552 states and 5354 transitions. [2022-11-26 00:50:58,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:50:58,494 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:50:58,494 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:50:58,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-11-26 00:50:58,495 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:50:58,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:50:58,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1079376403, now seen corresponding path program 65 times [2022-11-26 00:50:58,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:50:58,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582551159] [2022-11-26 00:50:58,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:58,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:50:58,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:59,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:50:59,627 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:50:59,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582551159] [2022-11-26 00:50:59,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582551159] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:50:59,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:50:59,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:50:59,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349648160] [2022-11-26 00:50:59,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:50:59,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:50:59,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:50:59,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:50:59,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:50:59,629 INFO L87 Difference]: Start difference. First operand 1552 states and 5354 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:01,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:51:01,646 INFO L93 Difference]: Finished difference Result 2755 states and 8719 transitions. [2022-11-26 00:51:01,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:51:01,646 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:51:01,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:51:01,654 INFO L225 Difference]: With dead ends: 2755 [2022-11-26 00:51:01,654 INFO L226 Difference]: Without dead ends: 2742 [2022-11-26 00:51:01,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=164, Invalid=342, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:51:01,655 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 246 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 1268 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 1296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:51:01,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 41 Invalid, 1296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1268 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:51:01,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2742 states. [2022-11-26 00:51:01,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2742 to 1554. [2022-11-26 00:51:01,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1553 states have (on average 3.449452672247263) internal successors, (5357), 1553 states have internal predecessors, (5357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:01,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 5357 transitions. [2022-11-26 00:51:01,695 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 5357 transitions. Word has length 33 [2022-11-26 00:51:01,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:51:01,695 INFO L495 AbstractCegarLoop]: Abstraction has 1554 states and 5357 transitions. [2022-11-26 00:51:01,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:01,695 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 5357 transitions. [2022-11-26 00:51:01,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:51:01,698 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:51:01,698 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:51:01,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-11-26 00:51:01,698 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:51:01,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:51:01,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1015929277, now seen corresponding path program 66 times [2022-11-26 00:51:01,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:51:01,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012840084] [2022-11-26 00:51:01,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:51:01,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:51:01,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:51:02,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:51:02,926 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:51:02,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012840084] [2022-11-26 00:51:02,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012840084] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:51:02,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:51:02,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:51:02,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570981596] [2022-11-26 00:51:02,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:51:02,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:51:02,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:51:02,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:51:02,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:51:02,932 INFO L87 Difference]: Start difference. First operand 1554 states and 5357 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:04,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:51:04,976 INFO L93 Difference]: Finished difference Result 2771 states and 8739 transitions. [2022-11-26 00:51:04,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:51:04,976 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:51:04,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:51:04,982 INFO L225 Difference]: With dead ends: 2771 [2022-11-26 00:51:04,982 INFO L226 Difference]: Without dead ends: 2760 [2022-11-26 00:51:04,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=164, Invalid=342, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:51:04,982 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 252 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1255 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 1282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:51:04,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 49 Invalid, 1282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1255 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:51:04,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2760 states. [2022-11-26 00:51:05,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2760 to 1556. [2022-11-26 00:51:05,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1555 states have (on average 3.446945337620579) internal successors, (5360), 1555 states have internal predecessors, (5360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:05,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 5360 transitions. [2022-11-26 00:51:05,017 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 5360 transitions. Word has length 33 [2022-11-26 00:51:05,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:51:05,017 INFO L495 AbstractCegarLoop]: Abstraction has 1556 states and 5360 transitions. [2022-11-26 00:51:05,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:05,018 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 5360 transitions. [2022-11-26 00:51:05,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:51:05,020 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:51:05,020 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:51:05,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-11-26 00:51:05,021 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:51:05,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:51:05,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1543281751, now seen corresponding path program 67 times [2022-11-26 00:51:05,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:51:05,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679368538] [2022-11-26 00:51:05,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:51:05,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:51:05,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:51:06,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:51:06,155 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:51:06,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679368538] [2022-11-26 00:51:06,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679368538] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:51:06,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:51:06,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:51:06,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514516530] [2022-11-26 00:51:06,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:51:06,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:51:06,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:51:06,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:51:06,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:51:06,157 INFO L87 Difference]: Start difference. First operand 1556 states and 5360 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:08,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:51:08,204 INFO L93 Difference]: Finished difference Result 2759 states and 8725 transitions. [2022-11-26 00:51:08,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:51:08,205 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:51:08,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:51:08,210 INFO L225 Difference]: With dead ends: 2759 [2022-11-26 00:51:08,210 INFO L226 Difference]: Without dead ends: 2740 [2022-11-26 00:51:08,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=164, Invalid=342, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:51:08,211 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 216 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 1295 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 1322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:51:08,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 48 Invalid, 1322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1295 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:51:08,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2740 states. [2022-11-26 00:51:08,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2740 to 1552. [2022-11-26 00:51:08,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1552 states, 1551 states have (on average 3.4506769825918764) internal successors, (5352), 1551 states have internal predecessors, (5352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:08,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1552 states to 1552 states and 5352 transitions. [2022-11-26 00:51:08,242 INFO L78 Accepts]: Start accepts. Automaton has 1552 states and 5352 transitions. Word has length 33 [2022-11-26 00:51:08,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:51:08,242 INFO L495 AbstractCegarLoop]: Abstraction has 1552 states and 5352 transitions. [2022-11-26 00:51:08,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:08,243 INFO L276 IsEmpty]: Start isEmpty. Operand 1552 states and 5352 transitions. [2022-11-26 00:51:08,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:51:08,245 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:51:08,245 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:51:08,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-11-26 00:51:08,246 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:51:08,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:51:08,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1276527853, now seen corresponding path program 68 times [2022-11-26 00:51:08,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:51:08,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400979891] [2022-11-26 00:51:08,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:51:08,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:51:08,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:51:09,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:51:09,457 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:51:09,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400979891] [2022-11-26 00:51:09,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400979891] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:51:09,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:51:09,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:51:09,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628223284] [2022-11-26 00:51:09,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:51:09,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:51:09,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:51:09,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:51:09,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:51:09,459 INFO L87 Difference]: Start difference. First operand 1552 states and 5352 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:11,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:51:11,364 INFO L93 Difference]: Finished difference Result 2799 states and 8788 transitions. [2022-11-26 00:51:11,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:51:11,364 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:51:11,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:51:11,369 INFO L225 Difference]: With dead ends: 2799 [2022-11-26 00:51:11,370 INFO L226 Difference]: Without dead ends: 2788 [2022-11-26 00:51:11,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=164, Invalid=342, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:51:11,370 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 323 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 1238 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 1263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:51:11,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 41 Invalid, 1263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1238 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:51:11,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2788 states. [2022-11-26 00:51:11,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2788 to 1556. [2022-11-26 00:51:11,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1555 states have (on average 3.4482315112540194) internal successors, (5362), 1555 states have internal predecessors, (5362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:11,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 5362 transitions. [2022-11-26 00:51:11,403 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 5362 transitions. Word has length 33 [2022-11-26 00:51:11,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:51:11,403 INFO L495 AbstractCegarLoop]: Abstraction has 1556 states and 5362 transitions. [2022-11-26 00:51:11,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:11,403 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 5362 transitions. [2022-11-26 00:51:11,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:51:11,405 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:51:11,406 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:51:11,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-11-26 00:51:11,406 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:51:11,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:51:11,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1934850959, now seen corresponding path program 69 times [2022-11-26 00:51:11,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:51:11,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341636999] [2022-11-26 00:51:11,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:51:11,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:51:11,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:51:12,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:51:12,609 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:51:12,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341636999] [2022-11-26 00:51:12,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341636999] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:51:12,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:51:12,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:51:12,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762116814] [2022-11-26 00:51:12,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:51:12,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:51:12,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:51:12,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:51:12,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:51:12,611 INFO L87 Difference]: Start difference. First operand 1556 states and 5362 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:14,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:51:14,507 INFO L93 Difference]: Finished difference Result 2801 states and 8790 transitions. [2022-11-26 00:51:14,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:51:14,508 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:51:14,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:51:14,513 INFO L225 Difference]: With dead ends: 2801 [2022-11-26 00:51:14,513 INFO L226 Difference]: Without dead ends: 2786 [2022-11-26 00:51:14,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=164, Invalid=342, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:51:14,513 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 281 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 1311 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 1336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:51:14,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 36 Invalid, 1336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1311 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:51:14,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2786 states. [2022-11-26 00:51:14,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2786 to 1554. [2022-11-26 00:51:14,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1553 states have (on average 3.449452672247263) internal successors, (5357), 1553 states have internal predecessors, (5357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:14,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 5357 transitions. [2022-11-26 00:51:14,543 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 5357 transitions. Word has length 33 [2022-11-26 00:51:14,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:51:14,543 INFO L495 AbstractCegarLoop]: Abstraction has 1554 states and 5357 transitions. [2022-11-26 00:51:14,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:14,543 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 5357 transitions. [2022-11-26 00:51:14,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:51:14,546 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:51:14,546 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:51:14,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-11-26 00:51:14,546 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:51:14,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:51:14,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1418001589, now seen corresponding path program 70 times [2022-11-26 00:51:14,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:51:14,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931286036] [2022-11-26 00:51:14,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:51:14,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:51:14,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:51:15,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:51:15,731 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:51:15,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931286036] [2022-11-26 00:51:15,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931286036] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:51:15,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:51:15,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:51:15,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483010107] [2022-11-26 00:51:15,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:51:15,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:51:15,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:51:15,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:51:15,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:51:15,733 INFO L87 Difference]: Start difference. First operand 1554 states and 5357 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:17,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:51:17,677 INFO L93 Difference]: Finished difference Result 2793 states and 8774 transitions. [2022-11-26 00:51:17,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:51:17,678 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:51:17,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:51:17,683 INFO L225 Difference]: With dead ends: 2793 [2022-11-26 00:51:17,683 INFO L226 Difference]: Without dead ends: 2782 [2022-11-26 00:51:17,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=164, Invalid=342, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:51:17,683 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 324 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 1214 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 1239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:51:17,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 48 Invalid, 1239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1214 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:51:17,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2782 states. [2022-11-26 00:51:17,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2782 to 1556. [2022-11-26 00:51:17,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1555 states have (on average 3.446945337620579) internal successors, (5360), 1555 states have internal predecessors, (5360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:17,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 5360 transitions. [2022-11-26 00:51:17,715 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 5360 transitions. Word has length 33 [2022-11-26 00:51:17,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:51:17,715 INFO L495 AbstractCegarLoop]: Abstraction has 1556 states and 5360 transitions. [2022-11-26 00:51:17,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:17,716 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 5360 transitions. [2022-11-26 00:51:17,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:51:17,719 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:51:17,720 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:51:17,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-11-26 00:51:17,720 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:51:17,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:51:17,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1945354063, now seen corresponding path program 71 times [2022-11-26 00:51:17,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:51:17,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152946061] [2022-11-26 00:51:17,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:51:17,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:51:17,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:51:18,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:51:18,947 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:51:18,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152946061] [2022-11-26 00:51:18,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152946061] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:51:18,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:51:18,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:51:18,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446797289] [2022-11-26 00:51:18,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:51:18,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:51:18,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:51:18,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:51:18,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:51:18,948 INFO L87 Difference]: Start difference. First operand 1556 states and 5360 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:20,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:51:20,859 INFO L93 Difference]: Finished difference Result 2797 states and 8780 transitions. [2022-11-26 00:51:20,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:51:20,860 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:51:20,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:51:20,865 INFO L225 Difference]: With dead ends: 2797 [2022-11-26 00:51:20,865 INFO L226 Difference]: Without dead ends: 2780 [2022-11-26 00:51:20,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=164, Invalid=342, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:51:20,865 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 310 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1216 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 1241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:51:20,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 45 Invalid, 1241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1216 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:51:20,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2780 states. [2022-11-26 00:51:20,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2780 to 1554. [2022-11-26 00:51:20,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1553 states have (on average 3.4481648422408244) internal successors, (5355), 1553 states have internal predecessors, (5355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:20,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 5355 transitions. [2022-11-26 00:51:20,896 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 5355 transitions. Word has length 33 [2022-11-26 00:51:20,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:51:20,897 INFO L495 AbstractCegarLoop]: Abstraction has 1554 states and 5355 transitions. [2022-11-26 00:51:20,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:20,897 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 5355 transitions. [2022-11-26 00:51:20,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:51:20,899 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:51:20,899 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:51:20,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-11-26 00:51:20,900 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:51:20,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:51:20,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1102908469, now seen corresponding path program 72 times [2022-11-26 00:51:20,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:51:20,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530755867] [2022-11-26 00:51:20,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:51:20,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:51:20,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:51:21,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:51:21,994 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:51:21,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530755867] [2022-11-26 00:51:21,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530755867] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:51:21,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:51:21,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:51:21,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298608145] [2022-11-26 00:51:21,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:51:21,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:51:21,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:51:21,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:51:21,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:51:21,996 INFO L87 Difference]: Start difference. First operand 1554 states and 5355 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:23,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:51:23,812 INFO L93 Difference]: Finished difference Result 2781 states and 8759 transitions. [2022-11-26 00:51:23,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:51:23,812 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:51:23,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:51:23,818 INFO L225 Difference]: With dead ends: 2781 [2022-11-26 00:51:23,818 INFO L226 Difference]: Without dead ends: 2768 [2022-11-26 00:51:23,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=164, Invalid=342, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:51:23,818 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 253 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 1280 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 1305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:51:23,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 39 Invalid, 1305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1280 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:51:23,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2768 states. [2022-11-26 00:51:23,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2768 to 1558. [2022-11-26 00:51:23,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1558 states, 1557 states have (on average 3.443802183686577) internal successors, (5362), 1557 states have internal predecessors, (5362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:23,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 5362 transitions. [2022-11-26 00:51:23,853 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 5362 transitions. Word has length 33 [2022-11-26 00:51:23,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:51:23,853 INFO L495 AbstractCegarLoop]: Abstraction has 1558 states and 5362 transitions. [2022-11-26 00:51:23,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:23,853 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 5362 transitions. [2022-11-26 00:51:23,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:51:23,856 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:51:23,856 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:51:23,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-11-26 00:51:23,856 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:51:23,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:51:23,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1581117869, now seen corresponding path program 73 times [2022-11-26 00:51:23,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:51:23,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136078493] [2022-11-26 00:51:23,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:51:23,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:51:23,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:51:25,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:51:25,178 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:51:25,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136078493] [2022-11-26 00:51:25,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136078493] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:51:25,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:51:25,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:51:25,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089750618] [2022-11-26 00:51:25,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:51:25,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:51:25,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:51:25,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:51:25,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:51:25,180 INFO L87 Difference]: Start difference. First operand 1558 states and 5362 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:27,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:51:27,089 INFO L93 Difference]: Finished difference Result 2777 states and 8748 transitions. [2022-11-26 00:51:27,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:51:27,089 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:51:27,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:51:27,095 INFO L225 Difference]: With dead ends: 2777 [2022-11-26 00:51:27,095 INFO L226 Difference]: Without dead ends: 2754 [2022-11-26 00:51:27,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=164, Invalid=342, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:51:27,095 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 242 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 1271 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 1296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:51:27,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 43 Invalid, 1296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1271 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:51:27,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2754 states. [2022-11-26 00:51:27,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2754 to 1550. [2022-11-26 00:51:27,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1550 states, 1549 states have (on average 3.451904454486766) internal successors, (5347), 1549 states have internal predecessors, (5347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:27,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1550 states to 1550 states and 5347 transitions. [2022-11-26 00:51:27,130 INFO L78 Accepts]: Start accepts. Automaton has 1550 states and 5347 transitions. Word has length 33 [2022-11-26 00:51:27,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:51:27,131 INFO L495 AbstractCegarLoop]: Abstraction has 1550 states and 5347 transitions. [2022-11-26 00:51:27,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:27,131 INFO L276 IsEmpty]: Start isEmpty. Operand 1550 states and 5347 transitions. [2022-11-26 00:51:27,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:51:27,133 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:51:27,133 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:51:27,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-11-26 00:51:27,133 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:51:27,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:51:27,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1481299019, now seen corresponding path program 74 times [2022-11-26 00:51:27,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:51:27,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349519580] [2022-11-26 00:51:27,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:51:27,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:51:27,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:51:28,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:51:28,323 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:51:28,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349519580] [2022-11-26 00:51:28,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349519580] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:51:28,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:51:28,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:51:28,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196716480] [2022-11-26 00:51:28,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:51:28,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:51:28,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:51:28,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:51:28,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:51:28,325 INFO L87 Difference]: Start difference. First operand 1550 states and 5347 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:30,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:51:30,227 INFO L93 Difference]: Finished difference Result 2731 states and 8678 transitions. [2022-11-26 00:51:30,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:51:30,228 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:51:30,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:51:30,233 INFO L225 Difference]: With dead ends: 2731 [2022-11-26 00:51:30,233 INFO L226 Difference]: Without dead ends: 2718 [2022-11-26 00:51:30,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=169, Invalid=337, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:51:30,234 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 229 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 1223 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 1251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:51:30,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 39 Invalid, 1251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1223 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:51:30,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2718 states. [2022-11-26 00:51:30,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2718 to 1554. [2022-11-26 00:51:30,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1553 states have (on average 3.4481648422408244) internal successors, (5355), 1553 states have internal predecessors, (5355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:30,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 5355 transitions. [2022-11-26 00:51:30,263 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 5355 transitions. Word has length 33 [2022-11-26 00:51:30,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:51:30,263 INFO L495 AbstractCegarLoop]: Abstraction has 1554 states and 5355 transitions. [2022-11-26 00:51:30,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:30,263 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 5355 transitions. [2022-11-26 00:51:30,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:51:30,265 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:51:30,266 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:51:30,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-11-26 00:51:30,266 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:51:30,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:51:30,266 INFO L85 PathProgramCache]: Analyzing trace with hash 55691709, now seen corresponding path program 75 times [2022-11-26 00:51:30,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:51:30,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426263737] [2022-11-26 00:51:30,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:51:30,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:51:30,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:51:31,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:51:31,410 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:51:31,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426263737] [2022-11-26 00:51:31,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426263737] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:51:31,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:51:31,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:51:31,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109775541] [2022-11-26 00:51:31,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:51:31,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:51:31,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:51:31,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:51:31,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:51:31,411 INFO L87 Difference]: Start difference. First operand 1554 states and 5355 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:33,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:51:33,153 INFO L93 Difference]: Finished difference Result 2745 states and 8694 transitions. [2022-11-26 00:51:33,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:51:33,153 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:51:33,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:51:33,158 INFO L225 Difference]: With dead ends: 2745 [2022-11-26 00:51:33,158 INFO L226 Difference]: Without dead ends: 2734 [2022-11-26 00:51:33,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=169, Invalid=337, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:51:33,159 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 265 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 1169 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 1196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:51:33,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 36 Invalid, 1196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1169 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-26 00:51:33,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2734 states. [2022-11-26 00:51:33,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2734 to 1556. [2022-11-26 00:51:33,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1555 states have (on average 3.445659163987138) internal successors, (5358), 1555 states have internal predecessors, (5358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:33,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 5358 transitions. [2022-11-26 00:51:33,191 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 5358 transitions. Word has length 33 [2022-11-26 00:51:33,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:51:33,191 INFO L495 AbstractCegarLoop]: Abstraction has 1556 states and 5358 transitions. [2022-11-26 00:51:33,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:33,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 5358 transitions. [2022-11-26 00:51:33,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:51:33,194 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:51:33,194 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:51:33,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-11-26 00:51:33,194 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:51:33,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:51:33,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1027896775, now seen corresponding path program 76 times [2022-11-26 00:51:33,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:51:33,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310088406] [2022-11-26 00:51:33,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:51:33,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:51:33,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:51:34,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:51:34,301 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:51:34,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310088406] [2022-11-26 00:51:34,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310088406] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:51:34,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:51:34,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:51:34,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174368785] [2022-11-26 00:51:34,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:51:34,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:51:34,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:51:34,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:51:34,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:51:34,302 INFO L87 Difference]: Start difference. First operand 1556 states and 5358 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:36,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:51:36,099 INFO L93 Difference]: Finished difference Result 2733 states and 8680 transitions. [2022-11-26 00:51:36,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:51:36,100 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:51:36,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:51:36,105 INFO L225 Difference]: With dead ends: 2733 [2022-11-26 00:51:36,105 INFO L226 Difference]: Without dead ends: 2716 [2022-11-26 00:51:36,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=169, Invalid=337, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:51:36,105 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 226 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 1238 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 1264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:51:36,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 36 Invalid, 1264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1238 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:51:36,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2716 states. [2022-11-26 00:51:36,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2716 to 1552. [2022-11-26 00:51:36,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1552 states, 1551 states have (on average 3.4493874919406835) internal successors, (5350), 1551 states have internal predecessors, (5350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:36,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1552 states to 1552 states and 5350 transitions. [2022-11-26 00:51:36,138 INFO L78 Accepts]: Start accepts. Automaton has 1552 states and 5350 transitions. Word has length 33 [2022-11-26 00:51:36,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:51:36,138 INFO L495 AbstractCegarLoop]: Abstraction has 1552 states and 5350 transitions. [2022-11-26 00:51:36,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:36,138 INFO L276 IsEmpty]: Start isEmpty. Operand 1552 states and 5350 transitions. [2022-11-26 00:51:36,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:51:36,141 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:51:36,141 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:51:36,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-11-26 00:51:36,141 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:51:36,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:51:36,141 INFO L85 PathProgramCache]: Analyzing trace with hash -407620845, now seen corresponding path program 77 times [2022-11-26 00:51:36,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:51:36,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043536690] [2022-11-26 00:51:36,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:51:36,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:51:36,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:51:37,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:51:37,392 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:51:37,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043536690] [2022-11-26 00:51:37,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043536690] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:51:37,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:51:37,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:51:37,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116018959] [2022-11-26 00:51:37,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:51:37,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:51:37,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:51:37,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:51:37,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:51:37,394 INFO L87 Difference]: Start difference. First operand 1552 states and 5350 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:38,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:51:38,926 INFO L93 Difference]: Finished difference Result 2731 states and 8677 transitions. [2022-11-26 00:51:38,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:51:38,926 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:51:38,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:51:38,932 INFO L225 Difference]: With dead ends: 2731 [2022-11-26 00:51:38,932 INFO L226 Difference]: Without dead ends: 2720 [2022-11-26 00:51:38,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=173, Invalid=333, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:51:38,934 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 249 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 1084 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 1110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:51:38,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 38 Invalid, 1110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1084 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-26 00:51:38,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2720 states. [2022-11-26 00:51:38,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2720 to 1556. [2022-11-26 00:51:38,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1555 states have (on average 3.445659163987138) internal successors, (5358), 1555 states have internal predecessors, (5358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:38,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 5358 transitions. [2022-11-26 00:51:38,966 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 5358 transitions. Word has length 33 [2022-11-26 00:51:38,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:51:38,967 INFO L495 AbstractCegarLoop]: Abstraction has 1556 states and 5358 transitions. [2022-11-26 00:51:38,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:38,967 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 5358 transitions. [2022-11-26 00:51:38,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:51:38,969 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:51:38,969 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:51:38,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-11-26 00:51:38,970 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:51:38,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:51:38,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1491209329, now seen corresponding path program 78 times [2022-11-26 00:51:38,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:51:38,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562135854] [2022-11-26 00:51:38,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:51:38,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:51:39,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:51:40,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:51:40,162 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:51:40,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562135854] [2022-11-26 00:51:40,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562135854] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:51:40,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:51:40,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:51:40,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892930555] [2022-11-26 00:51:40,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:51:40,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:51:40,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:51:40,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:51:40,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:51:40,164 INFO L87 Difference]: Start difference. First operand 1556 states and 5358 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:41,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:51:41,906 INFO L93 Difference]: Finished difference Result 2733 states and 8679 transitions. [2022-11-26 00:51:41,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:51:41,907 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:51:41,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:51:41,912 INFO L225 Difference]: With dead ends: 2733 [2022-11-26 00:51:41,912 INFO L226 Difference]: Without dead ends: 2718 [2022-11-26 00:51:41,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=173, Invalid=333, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:51:41,912 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 241 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 1096 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 1122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:51:41,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 32 Invalid, 1122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1096 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-26 00:51:41,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2718 states. [2022-11-26 00:51:41,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2718 to 1554. [2022-11-26 00:51:41,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1553 states have (on average 3.4468770122343853) internal successors, (5353), 1553 states have internal predecessors, (5353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:41,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 5353 transitions. [2022-11-26 00:51:41,943 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 5353 transitions. Word has length 33 [2022-11-26 00:51:41,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:51:41,943 INFO L495 AbstractCegarLoop]: Abstraction has 1554 states and 5353 transitions. [2022-11-26 00:51:41,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:41,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 5353 transitions. [2022-11-26 00:51:41,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:51:41,945 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:51:41,945 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:51:41,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-11-26 00:51:41,946 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:51:41,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:51:41,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1997555595, now seen corresponding path program 79 times [2022-11-26 00:51:41,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:51:41,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616630566] [2022-11-26 00:51:41,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:51:41,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:51:41,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:51:43,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:51:43,203 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:51:43,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616630566] [2022-11-26 00:51:43,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616630566] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:51:43,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:51:43,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:51:43,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224908486] [2022-11-26 00:51:43,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:51:43,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:51:43,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:51:43,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:51:43,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:51:43,205 INFO L87 Difference]: Start difference. First operand 1554 states and 5353 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:44,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:51:44,971 INFO L93 Difference]: Finished difference Result 2717 states and 8658 transitions. [2022-11-26 00:51:44,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:51:44,972 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:51:44,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:51:44,977 INFO L225 Difference]: With dead ends: 2717 [2022-11-26 00:51:44,977 INFO L226 Difference]: Without dead ends: 2696 [2022-11-26 00:51:44,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=175, Invalid=331, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:51:44,977 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 198 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 1123 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 1149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:51:44,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 36 Invalid, 1149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1123 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-26 00:51:44,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2696 states. [2022-11-26 00:51:45,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2696 to 1550. [2022-11-26 00:51:45,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1550 states, 1549 states have (on average 3.4506132989025176) internal successors, (5345), 1549 states have internal predecessors, (5345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:45,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1550 states to 1550 states and 5345 transitions. [2022-11-26 00:51:45,006 INFO L78 Accepts]: Start accepts. Automaton has 1550 states and 5345 transitions. Word has length 33 [2022-11-26 00:51:45,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:51:45,007 INFO L495 AbstractCegarLoop]: Abstraction has 1550 states and 5345 transitions. [2022-11-26 00:51:45,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:45,007 INFO L276 IsEmpty]: Start isEmpty. Operand 1550 states and 5345 transitions. [2022-11-26 00:51:45,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:51:45,009 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:51:45,009 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:51:45,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-11-26 00:51:45,009 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:51:45,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:51:45,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1540652157, now seen corresponding path program 80 times [2022-11-26 00:51:45,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:51:45,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713046926] [2022-11-26 00:51:45,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:51:45,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:51:45,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:51:46,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:51:46,155 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:51:46,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713046926] [2022-11-26 00:51:46,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713046926] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:51:46,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:51:46,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:51:46,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008535033] [2022-11-26 00:51:46,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:51:46,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:51:46,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:51:46,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:51:46,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:51:46,157 INFO L87 Difference]: Start difference. First operand 1550 states and 5345 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:47,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:51:47,941 INFO L93 Difference]: Finished difference Result 2767 states and 8728 transitions. [2022-11-26 00:51:47,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:51:47,942 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:51:47,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:51:47,946 INFO L225 Difference]: With dead ends: 2767 [2022-11-26 00:51:47,947 INFO L226 Difference]: Without dead ends: 2756 [2022-11-26 00:51:47,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=166, Invalid=340, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:51:47,947 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 293 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1245 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 1268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:51:47,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 44 Invalid, 1268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1245 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:51:47,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2756 states. [2022-11-26 00:51:47,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2756 to 1556. [2022-11-26 00:51:47,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1555 states have (on average 3.4482315112540194) internal successors, (5362), 1555 states have internal predecessors, (5362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:47,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 5362 transitions. [2022-11-26 00:51:47,976 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 5362 transitions. Word has length 33 [2022-11-26 00:51:47,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:51:47,976 INFO L495 AbstractCegarLoop]: Abstraction has 1556 states and 5362 transitions. [2022-11-26 00:51:47,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:47,976 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 5362 transitions. [2022-11-26 00:51:47,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:51:47,979 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:51:47,979 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:51:47,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-11-26 00:51:47,979 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:51:47,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:51:47,979 INFO L85 PathProgramCache]: Analyzing trace with hash 457063673, now seen corresponding path program 81 times [2022-11-26 00:51:47,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:51:47,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347532332] [2022-11-26 00:51:47,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:51:47,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:51:48,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:51:49,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:51:49,308 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:51:49,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347532332] [2022-11-26 00:51:49,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347532332] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:51:49,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:51:49,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:51:49,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409447534] [2022-11-26 00:51:49,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:51:49,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:51:49,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:51:49,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:51:49,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:51:49,310 INFO L87 Difference]: Start difference. First operand 1556 states and 5362 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:51,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:51:51,259 INFO L93 Difference]: Finished difference Result 2769 states and 8730 transitions. [2022-11-26 00:51:51,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:51:51,259 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:51:51,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:51:51,265 INFO L225 Difference]: With dead ends: 2769 [2022-11-26 00:51:51,265 INFO L226 Difference]: Without dead ends: 2754 [2022-11-26 00:51:51,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=166, Invalid=340, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:51:51,265 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 250 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1461 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 1484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:51:51,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 45 Invalid, 1484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1461 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:51:51,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2754 states. [2022-11-26 00:51:51,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2754 to 1554. [2022-11-26 00:51:51,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1553 states have (on average 3.449452672247263) internal successors, (5357), 1553 states have internal predecessors, (5357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:51,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 5357 transitions. [2022-11-26 00:51:51,297 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 5357 transitions. Word has length 33 [2022-11-26 00:51:51,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:51:51,297 INFO L495 AbstractCegarLoop]: Abstraction has 1554 states and 5357 transitions. [2022-11-26 00:51:51,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:51,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 5357 transitions. [2022-11-26 00:51:51,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:51:51,299 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:51:51,299 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:51:51,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-11-26 00:51:51,299 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:51:51,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:51:51,300 INFO L85 PathProgramCache]: Analyzing trace with hash -59785697, now seen corresponding path program 82 times [2022-11-26 00:51:51,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:51:51,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357858841] [2022-11-26 00:51:51,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:51:51,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:51:51,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:51:52,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:51:52,509 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:51:52,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357858841] [2022-11-26 00:51:52,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357858841] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:51:52,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:51:52,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:51:52,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060891374] [2022-11-26 00:51:52,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:51:52,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:51:52,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:51:52,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:51:52,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:51:52,511 INFO L87 Difference]: Start difference. First operand 1554 states and 5357 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:54,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:51:54,076 INFO L93 Difference]: Finished difference Result 2749 states and 8702 transitions. [2022-11-26 00:51:54,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:51:54,077 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:51:54,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:51:54,082 INFO L225 Difference]: With dead ends: 2749 [2022-11-26 00:51:54,082 INFO L226 Difference]: Without dead ends: 2738 [2022-11-26 00:51:54,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=166, Invalid=340, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:51:54,086 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 250 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 1332 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 1355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:51:54,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 61 Invalid, 1355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1332 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-26 00:51:54,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2738 states. [2022-11-26 00:51:54,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2738 to 1556. [2022-11-26 00:51:54,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1555 states have (on average 3.446945337620579) internal successors, (5360), 1555 states have internal predecessors, (5360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:54,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 5360 transitions. [2022-11-26 00:51:54,116 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 5360 transitions. Word has length 33 [2022-11-26 00:51:54,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:51:54,116 INFO L495 AbstractCegarLoop]: Abstraction has 1556 states and 5360 transitions. [2022-11-26 00:51:54,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:54,116 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 5360 transitions. [2022-11-26 00:51:54,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:51:54,119 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:51:54,119 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:51:54,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-11-26 00:51:54,119 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:51:54,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:51:54,119 INFO L85 PathProgramCache]: Analyzing trace with hash 467566777, now seen corresponding path program 83 times [2022-11-26 00:51:54,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:51:54,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563257115] [2022-11-26 00:51:54,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:51:54,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:51:54,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:51:55,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:51:55,535 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:51:55,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563257115] [2022-11-26 00:51:55,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563257115] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:51:55,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:51:55,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:51:55,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539593892] [2022-11-26 00:51:55,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:51:55,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:51:55,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:51:55,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:51:55,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:51:55,536 INFO L87 Difference]: Start difference. First operand 1556 states and 5360 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:57,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:51:57,438 INFO L93 Difference]: Finished difference Result 2753 states and 8708 transitions. [2022-11-26 00:51:57,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:51:57,439 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:51:57,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:51:57,444 INFO L225 Difference]: With dead ends: 2753 [2022-11-26 00:51:57,444 INFO L226 Difference]: Without dead ends: 2736 [2022-11-26 00:51:57,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=166, Invalid=340, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:51:57,445 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 225 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 1342 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 1365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:51:57,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 50 Invalid, 1365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1342 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:51:57,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2736 states. [2022-11-26 00:51:57,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2736 to 1554. [2022-11-26 00:51:57,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1553 states have (on average 3.4481648422408244) internal successors, (5355), 1553 states have internal predecessors, (5355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:57,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 5355 transitions. [2022-11-26 00:51:57,475 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 5355 transitions. Word has length 33 [2022-11-26 00:51:57,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:51:57,475 INFO L495 AbstractCegarLoop]: Abstraction has 1554 states and 5355 transitions. [2022-11-26 00:51:57,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:51:57,476 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 5355 transitions. [2022-11-26 00:51:57,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:51:57,478 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:51:57,478 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:51:57,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-11-26 00:51:57,478 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:51:57,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:51:57,479 INFO L85 PathProgramCache]: Analyzing trace with hash -374878817, now seen corresponding path program 84 times [2022-11-26 00:51:57,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:51:57,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875040068] [2022-11-26 00:51:57,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:51:57,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:51:57,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:51:58,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:51:58,564 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:51:58,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875040068] [2022-11-26 00:51:58,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875040068] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:51:58,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:51:58,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:51:58,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160945424] [2022-11-26 00:51:58,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:51:58,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:51:58,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:51:58,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:51:58,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:51:58,566 INFO L87 Difference]: Start difference. First operand 1554 states and 5355 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:00,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:52:00,380 INFO L93 Difference]: Finished difference Result 2773 states and 8737 transitions. [2022-11-26 00:52:00,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:52:00,380 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:52:00,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:52:00,385 INFO L225 Difference]: With dead ends: 2773 [2022-11-26 00:52:00,385 INFO L226 Difference]: Without dead ends: 2760 [2022-11-26 00:52:00,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=166, Invalid=340, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:52:00,386 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 272 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 1294 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 1317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:52:00,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 47 Invalid, 1317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1294 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:52:00,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2760 states. [2022-11-26 00:52:00,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2760 to 1558. [2022-11-26 00:52:00,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1558 states, 1557 states have (on average 3.443802183686577) internal successors, (5362), 1557 states have internal predecessors, (5362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:00,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 5362 transitions. [2022-11-26 00:52:00,416 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 5362 transitions. Word has length 33 [2022-11-26 00:52:00,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:52:00,416 INFO L495 AbstractCegarLoop]: Abstraction has 1558 states and 5362 transitions. [2022-11-26 00:52:00,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:00,416 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 5362 transitions. [2022-11-26 00:52:00,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:52:00,418 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:52:00,418 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:52:00,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-11-26 00:52:00,419 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:52:00,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:52:00,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1236062141, now seen corresponding path program 85 times [2022-11-26 00:52:00,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:52:00,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757236810] [2022-11-26 00:52:00,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:52:00,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:52:00,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:52:01,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:52:01,527 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:52:01,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757236810] [2022-11-26 00:52:01,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757236810] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:52:01,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:52:01,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:52:01,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331670882] [2022-11-26 00:52:01,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:52:01,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:52:01,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:52:01,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:52:01,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:52:01,528 INFO L87 Difference]: Start difference. First operand 1558 states and 5362 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:03,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:52:03,272 INFO L93 Difference]: Finished difference Result 2769 states and 8726 transitions. [2022-11-26 00:52:03,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:52:03,273 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:52:03,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:52:03,278 INFO L225 Difference]: With dead ends: 2769 [2022-11-26 00:52:03,278 INFO L226 Difference]: Without dead ends: 2748 [2022-11-26 00:52:03,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=166, Invalid=340, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:52:03,278 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 269 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1184 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 1207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:52:03,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 44 Invalid, 1207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1184 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-26 00:52:03,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2748 states. [2022-11-26 00:52:03,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2748 to 1552. [2022-11-26 00:52:03,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1552 states, 1551 states have (on average 3.4493874919406835) internal successors, (5350), 1551 states have internal predecessors, (5350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:03,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1552 states to 1552 states and 5350 transitions. [2022-11-26 00:52:03,307 INFO L78 Accepts]: Start accepts. Automaton has 1552 states and 5350 transitions. Word has length 33 [2022-11-26 00:52:03,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:52:03,308 INFO L495 AbstractCegarLoop]: Abstraction has 1552 states and 5350 transitions. [2022-11-26 00:52:03,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:03,308 INFO L276 IsEmpty]: Start isEmpty. Operand 1552 states and 5350 transitions. [2022-11-26 00:52:03,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:52:03,310 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:52:03,310 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:52:03,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-11-26 00:52:03,310 INFO L420 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:52:03,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:52:03,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1250766787, now seen corresponding path program 86 times [2022-11-26 00:52:03,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:52:03,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696943362] [2022-11-26 00:52:03,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:52:03,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:52:03,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:52:04,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:52:04,361 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:52:04,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696943362] [2022-11-26 00:52:04,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696943362] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:52:04,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:52:04,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:52:04,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563058777] [2022-11-26 00:52:04,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:52:04,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:52:04,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:52:04,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:52:04,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:52:04,363 INFO L87 Difference]: Start difference. First operand 1552 states and 5350 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:06,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:52:06,072 INFO L93 Difference]: Finished difference Result 2747 states and 8694 transitions. [2022-11-26 00:52:06,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:52:06,073 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:52:06,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:52:06,078 INFO L225 Difference]: With dead ends: 2747 [2022-11-26 00:52:06,078 INFO L226 Difference]: Without dead ends: 2736 [2022-11-26 00:52:06,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=170, Invalid=336, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:52:06,078 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 259 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 1121 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 1148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:52:06,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 43 Invalid, 1148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1121 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-26 00:52:06,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2736 states. [2022-11-26 00:52:06,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2736 to 1556. [2022-11-26 00:52:06,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1555 states have (on average 3.445659163987138) internal successors, (5358), 1555 states have internal predecessors, (5358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:06,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 5358 transitions. [2022-11-26 00:52:06,109 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 5358 transitions. Word has length 33 [2022-11-26 00:52:06,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:52:06,109 INFO L495 AbstractCegarLoop]: Abstraction has 1556 states and 5358 transitions. [2022-11-26 00:52:06,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:06,109 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 5358 transitions. [2022-11-26 00:52:06,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:52:06,111 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:52:06,111 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:52:06,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-11-26 00:52:06,112 INFO L420 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:52:06,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:52:06,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1960612025, now seen corresponding path program 87 times [2022-11-26 00:52:06,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:52:06,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368829209] [2022-11-26 00:52:06,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:52:06,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:52:06,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:52:07,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:52:07,278 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:52:07,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368829209] [2022-11-26 00:52:07,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368829209] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:52:07,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:52:07,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:52:07,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778614348] [2022-11-26 00:52:07,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:52:07,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:52:07,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:52:07,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:52:07,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:52:07,280 INFO L87 Difference]: Start difference. First operand 1556 states and 5358 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:08,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:52:08,958 INFO L93 Difference]: Finished difference Result 2749 states and 8696 transitions. [2022-11-26 00:52:08,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:52:08,959 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:52:08,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:52:08,964 INFO L225 Difference]: With dead ends: 2749 [2022-11-26 00:52:08,964 INFO L226 Difference]: Without dead ends: 2734 [2022-11-26 00:52:08,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=170, Invalid=336, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:52:08,964 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 254 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 1111 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 1137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:52:08,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 36 Invalid, 1137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1111 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-26 00:52:08,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2734 states. [2022-11-26 00:52:08,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2734 to 1554. [2022-11-26 00:52:08,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1553 states have (on average 3.4468770122343853) internal successors, (5353), 1553 states have internal predecessors, (5353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:08,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 5353 transitions. [2022-11-26 00:52:08,994 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 5353 transitions. Word has length 33 [2022-11-26 00:52:08,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:52:08,994 INFO L495 AbstractCegarLoop]: Abstraction has 1554 states and 5353 transitions. [2022-11-26 00:52:08,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:08,995 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 5353 transitions. [2022-11-26 00:52:08,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:52:08,997 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:52:08,997 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:52:08,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-11-26 00:52:08,998 INFO L420 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:52:08,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:52:08,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1454265759, now seen corresponding path program 88 times [2022-11-26 00:52:08,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:52:08,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881342214] [2022-11-26 00:52:08,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:52:08,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:52:09,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:52:10,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:52:10,166 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:52:10,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881342214] [2022-11-26 00:52:10,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881342214] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:52:10,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:52:10,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:52:10,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301255517] [2022-11-26 00:52:10,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:52:10,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:52:10,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:52:10,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:52:10,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:52:10,167 INFO L87 Difference]: Start difference. First operand 1554 states and 5353 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:11,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:52:11,963 INFO L93 Difference]: Finished difference Result 2737 states and 8682 transitions. [2022-11-26 00:52:11,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:52:11,963 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:52:11,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:52:11,969 INFO L225 Difference]: With dead ends: 2737 [2022-11-26 00:52:11,969 INFO L226 Difference]: Without dead ends: 2718 [2022-11-26 00:52:11,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=172, Invalid=334, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:52:11,970 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 214 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 1240 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 1266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:52:11,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 40 Invalid, 1266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1240 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:52:11,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2718 states. [2022-11-26 00:52:11,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2718 to 1552. [2022-11-26 00:52:11,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1552 states, 1551 states have (on average 3.4480980012894906) internal successors, (5348), 1551 states have internal predecessors, (5348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:12,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1552 states to 1552 states and 5348 transitions. [2022-11-26 00:52:12,002 INFO L78 Accepts]: Start accepts. Automaton has 1552 states and 5348 transitions. Word has length 33 [2022-11-26 00:52:12,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:52:12,002 INFO L495 AbstractCegarLoop]: Abstraction has 1552 states and 5348 transitions. [2022-11-26 00:52:12,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:12,002 INFO L276 IsEmpty]: Start isEmpty. Operand 1552 states and 5348 transitions. [2022-11-26 00:52:12,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:52:12,005 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:52:12,005 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:52:12,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-11-26 00:52:12,005 INFO L420 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:52:12,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:52:12,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1108256121, now seen corresponding path program 89 times [2022-11-26 00:52:12,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:52:12,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428264810] [2022-11-26 00:52:12,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:52:12,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:52:12,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:52:13,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:52:13,126 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:52:13,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428264810] [2022-11-26 00:52:13,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428264810] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:52:13,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:52:13,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:52:13,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525984375] [2022-11-26 00:52:13,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:52:13,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:52:13,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:52:13,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:52:13,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:52:13,128 INFO L87 Difference]: Start difference. First operand 1552 states and 5348 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:14,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:52:14,865 INFO L93 Difference]: Finished difference Result 2741 states and 8679 transitions. [2022-11-26 00:52:14,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:52:14,865 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:52:14,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:52:14,870 INFO L225 Difference]: With dead ends: 2741 [2022-11-26 00:52:14,870 INFO L226 Difference]: Without dead ends: 2728 [2022-11-26 00:52:14,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=168, Invalid=338, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:52:14,871 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 249 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1256 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 1280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:52:14,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 45 Invalid, 1280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1256 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-26 00:52:14,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2728 states. [2022-11-26 00:52:14,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2728 to 1560. [2022-11-26 00:52:14,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1560 states, 1559 states have (on average 3.441949967928159) internal successors, (5366), 1559 states have internal predecessors, (5366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:14,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1560 states to 1560 states and 5366 transitions. [2022-11-26 00:52:14,902 INFO L78 Accepts]: Start accepts. Automaton has 1560 states and 5366 transitions. Word has length 33 [2022-11-26 00:52:14,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:52:14,902 INFO L495 AbstractCegarLoop]: Abstraction has 1560 states and 5366 transitions. [2022-11-26 00:52:14,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:14,903 INFO L276 IsEmpty]: Start isEmpty. Operand 1560 states and 5366 transitions. [2022-11-26 00:52:14,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:52:14,905 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:52:14,905 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:52:14,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-11-26 00:52:14,906 INFO L420 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:52:14,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:52:14,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1575770217, now seen corresponding path program 90 times [2022-11-26 00:52:14,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:52:14,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308937935] [2022-11-26 00:52:14,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:52:14,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:52:14,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:52:16,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:52:16,076 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:52:16,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308937935] [2022-11-26 00:52:16,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308937935] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:52:16,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:52:16,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:52:16,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606095570] [2022-11-26 00:52:16,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:52:16,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:52:16,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:52:16,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:52:16,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:52:16,077 INFO L87 Difference]: Start difference. First operand 1560 states and 5366 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:17,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:52:17,796 INFO L93 Difference]: Finished difference Result 2727 states and 8659 transitions. [2022-11-26 00:52:17,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:52:17,796 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:52:17,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:52:17,801 INFO L225 Difference]: With dead ends: 2727 [2022-11-26 00:52:17,801 INFO L226 Difference]: Without dead ends: 2708 [2022-11-26 00:52:17,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=168, Invalid=338, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:52:17,802 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 218 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1195 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 1219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:52:17,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 45 Invalid, 1219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1195 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-26 00:52:17,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2708 states. [2022-11-26 00:52:17,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2708 to 1556. [2022-11-26 00:52:17,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1555 states have (on average 3.4437299035369775) internal successors, (5355), 1555 states have internal predecessors, (5355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:17,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 5355 transitions. [2022-11-26 00:52:17,831 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 5355 transitions. Word has length 33 [2022-11-26 00:52:17,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:52:17,831 INFO L495 AbstractCegarLoop]: Abstraction has 1556 states and 5355 transitions. [2022-11-26 00:52:17,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:17,831 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 5355 transitions. [2022-11-26 00:52:17,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:52:17,834 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:52:17,834 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:52:17,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-11-26 00:52:17,834 INFO L420 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:52:17,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:52:17,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1433852345, now seen corresponding path program 91 times [2022-11-26 00:52:17,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:52:17,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833928242] [2022-11-26 00:52:17,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:52:17,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:52:17,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:52:18,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:52:18,999 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:52:18,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833928242] [2022-11-26 00:52:19,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833928242] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:52:19,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:52:19,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:52:19,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738956381] [2022-11-26 00:52:19,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:52:19,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:52:19,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:52:19,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:52:19,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:52:19,001 INFO L87 Difference]: Start difference. First operand 1556 states and 5355 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:20,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:52:20,751 INFO L93 Difference]: Finished difference Result 2707 states and 8628 transitions. [2022-11-26 00:52:20,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:52:20,751 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:52:20,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:52:20,757 INFO L225 Difference]: With dead ends: 2707 [2022-11-26 00:52:20,757 INFO L226 Difference]: Without dead ends: 2680 [2022-11-26 00:52:20,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=170, Invalid=336, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:52:20,758 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 185 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 1225 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 1249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:52:20,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 37 Invalid, 1249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1225 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-26 00:52:20,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2680 states. [2022-11-26 00:52:20,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2680 to 1546. [2022-11-26 00:52:20,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1546 states, 1545 states have (on average 3.454368932038835) internal successors, (5337), 1545 states have internal predecessors, (5337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:20,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1546 states to 1546 states and 5337 transitions. [2022-11-26 00:52:20,786 INFO L78 Accepts]: Start accepts. Automaton has 1546 states and 5337 transitions. Word has length 33 [2022-11-26 00:52:20,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:52:20,786 INFO L495 AbstractCegarLoop]: Abstraction has 1546 states and 5337 transitions. [2022-11-26 00:52:20,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:20,787 INFO L276 IsEmpty]: Start isEmpty. Operand 1546 states and 5337 transitions. [2022-11-26 00:52:20,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:52:20,789 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:52:20,789 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:52:20,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-11-26 00:52:20,790 INFO L420 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:52:20,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:52:20,790 INFO L85 PathProgramCache]: Analyzing trace with hash -703887715, now seen corresponding path program 92 times [2022-11-26 00:52:20,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:52:20,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407239] [2022-11-26 00:52:20,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:52:20,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:52:20,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:52:21,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:52:21,860 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:52:21,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407239] [2022-11-26 00:52:21,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407239] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:52:21,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:52:21,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:52:21,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068737357] [2022-11-26 00:52:21,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:52:21,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:52:21,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:52:21,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:52:21,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:52:21,862 INFO L87 Difference]: Start difference. First operand 1546 states and 5337 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:23,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:52:23,692 INFO L93 Difference]: Finished difference Result 2705 states and 8607 transitions. [2022-11-26 00:52:23,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:52:23,692 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:52:23,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:52:23,697 INFO L225 Difference]: With dead ends: 2705 [2022-11-26 00:52:23,697 INFO L226 Difference]: Without dead ends: 2692 [2022-11-26 00:52:23,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=169, Invalid=337, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:52:23,698 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 255 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 1195 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 1223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:52:23,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 48 Invalid, 1223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1195 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:52:23,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2692 states. [2022-11-26 00:52:23,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2692 to 1558. [2022-11-26 00:52:23,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1558 states, 1557 states have (on average 3.443159922928709) internal successors, (5361), 1557 states have internal predecessors, (5361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:23,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 5361 transitions. [2022-11-26 00:52:23,730 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 5361 transitions. Word has length 33 [2022-11-26 00:52:23,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:52:23,730 INFO L495 AbstractCegarLoop]: Abstraction has 1558 states and 5361 transitions. [2022-11-26 00:52:23,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:23,730 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 5361 transitions. [2022-11-26 00:52:23,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:52:23,732 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:52:23,732 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:52:23,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-11-26 00:52:23,732 INFO L420 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:52:23,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:52:23,733 INFO L85 PathProgramCache]: Analyzing trace with hash 833103013, now seen corresponding path program 93 times [2022-11-26 00:52:23,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:52:23,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146999459] [2022-11-26 00:52:23,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:52:23,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:52:23,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:52:24,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:52:24,795 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:52:24,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146999459] [2022-11-26 00:52:24,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146999459] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:52:24,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:52:24,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:52:24,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70822617] [2022-11-26 00:52:24,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:52:24,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:52:24,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:52:24,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:52:24,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:52:24,796 INFO L87 Difference]: Start difference. First operand 1558 states and 5361 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:26,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:52:26,635 INFO L93 Difference]: Finished difference Result 2719 states and 8623 transitions. [2022-11-26 00:52:26,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:52:26,636 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:52:26,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:52:26,641 INFO L225 Difference]: With dead ends: 2719 [2022-11-26 00:52:26,641 INFO L226 Difference]: Without dead ends: 2708 [2022-11-26 00:52:26,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=169, Invalid=337, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:52:26,641 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 263 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 1292 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 1319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:52:26,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 53 Invalid, 1319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1292 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:52:26,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2708 states. [2022-11-26 00:52:26,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2708 to 1560. [2022-11-26 00:52:26,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1560 states, 1559 states have (on average 3.4406670942912125) internal successors, (5364), 1559 states have internal predecessors, (5364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:26,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1560 states to 1560 states and 5364 transitions. [2022-11-26 00:52:26,670 INFO L78 Accepts]: Start accepts. Automaton has 1560 states and 5364 transitions. Word has length 33 [2022-11-26 00:52:26,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:52:26,670 INFO L495 AbstractCegarLoop]: Abstraction has 1560 states and 5364 transitions. [2022-11-26 00:52:26,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:26,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1560 states and 5364 transitions. [2022-11-26 00:52:26,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:52:26,673 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:52:26,673 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:52:26,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-11-26 00:52:26,673 INFO L420 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:52:26,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:52:26,673 INFO L85 PathProgramCache]: Analyzing trace with hash -250485471, now seen corresponding path program 94 times [2022-11-26 00:52:26,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:52:26,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98317356] [2022-11-26 00:52:26,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:52:26,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:52:26,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:52:27,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:52:27,807 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:52:27,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98317356] [2022-11-26 00:52:27,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98317356] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:52:27,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:52:27,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:52:27,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259342679] [2022-11-26 00:52:27,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:52:27,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:52:27,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:52:27,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:52:27,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:52:27,808 INFO L87 Difference]: Start difference. First operand 1560 states and 5364 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:29,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:52:29,474 INFO L93 Difference]: Finished difference Result 2707 states and 8609 transitions. [2022-11-26 00:52:29,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:52:29,475 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:52:29,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:52:29,480 INFO L225 Difference]: With dead ends: 2707 [2022-11-26 00:52:29,480 INFO L226 Difference]: Without dead ends: 2690 [2022-11-26 00:52:29,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=169, Invalid=337, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:52:29,480 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 237 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 1299 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 1325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:52:29,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 48 Invalid, 1325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1299 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-26 00:52:29,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2690 states. [2022-11-26 00:52:29,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2690 to 1556. [2022-11-26 00:52:29,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1555 states have (on average 3.4443729903536977) internal successors, (5356), 1555 states have internal predecessors, (5356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:29,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 5356 transitions. [2022-11-26 00:52:29,510 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 5356 transitions. Word has length 33 [2022-11-26 00:52:29,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:52:29,510 INFO L495 AbstractCegarLoop]: Abstraction has 1556 states and 5356 transitions. [2022-11-26 00:52:29,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:29,511 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 5356 transitions. [2022-11-26 00:52:29,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:52:29,513 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:52:29,513 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:52:29,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-11-26 00:52:29,514 INFO L420 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:52:29,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:52:29,514 INFO L85 PathProgramCache]: Analyzing trace with hash 369790459, now seen corresponding path program 95 times [2022-11-26 00:52:29,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:52:29,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771577025] [2022-11-26 00:52:29,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:52:29,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:52:29,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:52:30,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:52:30,728 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:52:30,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771577025] [2022-11-26 00:52:30,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771577025] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:52:30,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:52:30,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:52:30,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693042993] [2022-11-26 00:52:30,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:52:30,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:52:30,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:52:30,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:52:30,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:52:30,730 INFO L87 Difference]: Start difference. First operand 1556 states and 5356 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:32,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:52:32,533 INFO L93 Difference]: Finished difference Result 2707 states and 8607 transitions. [2022-11-26 00:52:32,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-26 00:52:32,533 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:52:32,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:52:32,538 INFO L225 Difference]: With dead ends: 2707 [2022-11-26 00:52:32,538 INFO L226 Difference]: Without dead ends: 2696 [2022-11-26 00:52:32,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=209, Invalid=391, Unknown=0, NotChecked=0, Total=600 [2022-11-26 00:52:32,539 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 243 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 1133 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 1161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:52:32,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 48 Invalid, 1161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1133 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-26 00:52:32,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2696 states. [2022-11-26 00:52:32,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2696 to 1560. [2022-11-26 00:52:32,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1560 states, 1559 states have (on average 3.4406670942912125) internal successors, (5364), 1559 states have internal predecessors, (5364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:32,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1560 states to 1560 states and 5364 transitions. [2022-11-26 00:52:32,568 INFO L78 Accepts]: Start accepts. Automaton has 1560 states and 5364 transitions. Word has length 33 [2022-11-26 00:52:32,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:52:32,569 INFO L495 AbstractCegarLoop]: Abstraction has 1560 states and 5364 transitions. [2022-11-26 00:52:32,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:32,569 INFO L276 IsEmpty]: Start isEmpty. Operand 1560 states and 5364 transitions. [2022-11-26 00:52:32,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:52:32,571 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:52:32,571 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:52:32,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-11-26 00:52:32,571 INFO L420 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:52:32,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:52:32,571 INFO L85 PathProgramCache]: Analyzing trace with hash -713798025, now seen corresponding path program 96 times [2022-11-26 00:52:32,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:52:32,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885135344] [2022-11-26 00:52:32,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:52:32,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:52:32,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:52:33,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:52:33,776 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:52:33,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885135344] [2022-11-26 00:52:33,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885135344] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:52:33,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:52:33,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:52:33,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557620461] [2022-11-26 00:52:33,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:52:33,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:52:33,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:52:33,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:52:33,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:52:33,778 INFO L87 Difference]: Start difference. First operand 1560 states and 5364 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:35,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:52:35,475 INFO L93 Difference]: Finished difference Result 2709 states and 8609 transitions. [2022-11-26 00:52:35,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-26 00:52:35,475 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:52:35,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:52:35,480 INFO L225 Difference]: With dead ends: 2709 [2022-11-26 00:52:35,481 INFO L226 Difference]: Without dead ends: 2694 [2022-11-26 00:52:35,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=191, Invalid=361, Unknown=0, NotChecked=0, Total=552 [2022-11-26 00:52:35,481 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 243 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 1171 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 1200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:52:35,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 49 Invalid, 1200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1171 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-26 00:52:35,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2694 states. [2022-11-26 00:52:35,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2694 to 1558. [2022-11-26 00:52:35,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1558 states, 1557 states have (on average 3.4418754014129735) internal successors, (5359), 1557 states have internal predecessors, (5359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:35,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 5359 transitions. [2022-11-26 00:52:35,510 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 5359 transitions. Word has length 33 [2022-11-26 00:52:35,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:52:35,510 INFO L495 AbstractCegarLoop]: Abstraction has 1558 states and 5359 transitions. [2022-11-26 00:52:35,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:35,510 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 5359 transitions. [2022-11-26 00:52:35,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:52:35,513 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:52:35,513 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:52:35,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-11-26 00:52:35,513 INFO L420 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:52:35,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:52:35,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1220144291, now seen corresponding path program 97 times [2022-11-26 00:52:35,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:52:35,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728709112] [2022-11-26 00:52:35,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:52:35,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:52:35,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:52:36,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:52:36,825 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:52:36,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728709112] [2022-11-26 00:52:36,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728709112] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:52:36,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:52:36,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:52:36,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098969092] [2022-11-26 00:52:36,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:52:36,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:52:36,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:52:36,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:52:36,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:52:36,826 INFO L87 Difference]: Start difference. First operand 1558 states and 5359 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:38,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:52:38,560 INFO L93 Difference]: Finished difference Result 2693 states and 8588 transitions. [2022-11-26 00:52:38,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-26 00:52:38,560 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:52:38,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:52:38,565 INFO L225 Difference]: With dead ends: 2693 [2022-11-26 00:52:38,565 INFO L226 Difference]: Without dead ends: 2668 [2022-11-26 00:52:38,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=193, Invalid=359, Unknown=0, NotChecked=0, Total=552 [2022-11-26 00:52:38,566 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 206 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 1020 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 1048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1020 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:52:38,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 40 Invalid, 1048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1020 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-26 00:52:38,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2668 states. [2022-11-26 00:52:38,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2668 to 1550. [2022-11-26 00:52:38,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1550 states, 1549 states have (on average 3.4493221433182697) internal successors, (5343), 1549 states have internal predecessors, (5343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:38,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1550 states to 1550 states and 5343 transitions. [2022-11-26 00:52:38,596 INFO L78 Accepts]: Start accepts. Automaton has 1550 states and 5343 transitions. Word has length 33 [2022-11-26 00:52:38,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:52:38,596 INFO L495 AbstractCegarLoop]: Abstraction has 1550 states and 5343 transitions. [2022-11-26 00:52:38,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:38,596 INFO L276 IsEmpty]: Start isEmpty. Operand 1550 states and 5343 transitions. [2022-11-26 00:52:38,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:52:38,599 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:52:38,599 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:52:38,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-11-26 00:52:38,599 INFO L420 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:52:38,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:52:38,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1125288587, now seen corresponding path program 98 times [2022-11-26 00:52:38,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:52:38,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434547667] [2022-11-26 00:52:38,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:52:38,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:52:38,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:52:39,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:52:39,790 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:52:39,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434547667] [2022-11-26 00:52:39,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434547667] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:52:39,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:52:39,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:52:39,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079204095] [2022-11-26 00:52:39,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:52:39,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:52:39,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:52:39,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:52:39,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:52:39,791 INFO L87 Difference]: Start difference. First operand 1550 states and 5343 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:41,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:52:41,654 INFO L93 Difference]: Finished difference Result 2773 states and 8737 transitions. [2022-11-26 00:52:41,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:52:41,655 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:52:41,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:52:41,660 INFO L225 Difference]: With dead ends: 2773 [2022-11-26 00:52:41,660 INFO L226 Difference]: Without dead ends: 2760 [2022-11-26 00:52:41,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=163, Invalid=343, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:52:41,661 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 245 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1385 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 1411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:52:41,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 50 Invalid, 1411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1385 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:52:41,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2760 states. [2022-11-26 00:52:41,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2760 to 1556. [2022-11-26 00:52:41,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1555 states have (on average 3.446945337620579) internal successors, (5360), 1555 states have internal predecessors, (5360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:41,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 5360 transitions. [2022-11-26 00:52:41,692 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 5360 transitions. Word has length 33 [2022-11-26 00:52:41,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:52:41,692 INFO L495 AbstractCegarLoop]: Abstraction has 1556 states and 5360 transitions. [2022-11-26 00:52:41,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:41,692 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 5360 transitions. [2022-11-26 00:52:41,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:52:41,695 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:52:41,695 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:52:41,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-11-26 00:52:41,695 INFO L420 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:52:41,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:52:41,695 INFO L85 PathProgramCache]: Analyzing trace with hash 411702141, now seen corresponding path program 99 times [2022-11-26 00:52:41,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:52:41,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245198724] [2022-11-26 00:52:41,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:52:41,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:52:41,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:52:43,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:52:43,018 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:52:43,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245198724] [2022-11-26 00:52:43,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245198724] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:52:43,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:52:43,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:52:43,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81709318] [2022-11-26 00:52:43,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:52:43,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:52:43,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:52:43,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:52:43,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:52:43,019 INFO L87 Difference]: Start difference. First operand 1556 states and 5360 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:44,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:52:44,824 INFO L93 Difference]: Finished difference Result 2787 states and 8753 transitions. [2022-11-26 00:52:44,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:52:44,824 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:52:44,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:52:44,829 INFO L225 Difference]: With dead ends: 2787 [2022-11-26 00:52:44,830 INFO L226 Difference]: Without dead ends: 2776 [2022-11-26 00:52:44,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=163, Invalid=343, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:52:44,830 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 318 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 1261 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 1287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:52:44,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 47 Invalid, 1287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1261 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:52:44,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2776 states. [2022-11-26 00:52:44,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2776 to 1558. [2022-11-26 00:52:44,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1558 states, 1557 states have (on average 3.4444444444444446) internal successors, (5363), 1557 states have internal predecessors, (5363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:44,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 5363 transitions. [2022-11-26 00:52:44,864 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 5363 transitions. Word has length 33 [2022-11-26 00:52:44,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:52:44,864 INFO L495 AbstractCegarLoop]: Abstraction has 1558 states and 5363 transitions. [2022-11-26 00:52:44,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:44,864 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 5363 transitions. [2022-11-26 00:52:44,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:52:44,866 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:52:44,866 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:52:44,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-11-26 00:52:44,866 INFO L420 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:52:44,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:52:44,867 INFO L85 PathProgramCache]: Analyzing trace with hash -671886343, now seen corresponding path program 100 times [2022-11-26 00:52:44,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:52:44,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520320765] [2022-11-26 00:52:44,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:52:44,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:52:44,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:52:45,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:52:45,999 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:52:45,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520320765] [2022-11-26 00:52:45,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520320765] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:52:45,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:52:45,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:52:46,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78376292] [2022-11-26 00:52:46,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:52:46,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:52:46,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:52:46,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:52:46,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:52:46,001 INFO L87 Difference]: Start difference. First operand 1558 states and 5363 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:47,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:52:47,884 INFO L93 Difference]: Finished difference Result 2775 states and 8739 transitions. [2022-11-26 00:52:47,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:52:47,885 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:52:47,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:52:47,890 INFO L225 Difference]: With dead ends: 2775 [2022-11-26 00:52:47,890 INFO L226 Difference]: Without dead ends: 2758 [2022-11-26 00:52:47,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=163, Invalid=343, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:52:47,891 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 285 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 1263 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 1289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:52:47,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 42 Invalid, 1289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1263 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:52:47,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2758 states. [2022-11-26 00:52:47,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2758 to 1554. [2022-11-26 00:52:47,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1553 states have (on average 3.4481648422408244) internal successors, (5355), 1553 states have internal predecessors, (5355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:47,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 5355 transitions. [2022-11-26 00:52:47,921 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 5355 transitions. Word has length 33 [2022-11-26 00:52:47,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:52:47,921 INFO L495 AbstractCegarLoop]: Abstraction has 1554 states and 5355 transitions. [2022-11-26 00:52:47,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:47,922 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 5355 transitions. [2022-11-26 00:52:47,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:52:47,924 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:52:47,924 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:52:47,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-11-26 00:52:47,924 INFO L420 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:52:47,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:52:47,925 INFO L85 PathProgramCache]: Analyzing trace with hash 800745491, now seen corresponding path program 101 times [2022-11-26 00:52:47,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:52:47,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335082795] [2022-11-26 00:52:47,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:52:47,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:52:47,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:52:49,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:52:49,017 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:52:49,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335082795] [2022-11-26 00:52:49,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335082795] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:52:49,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:52:49,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:52:49,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781578220] [2022-11-26 00:52:49,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:52:49,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:52:49,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:52:49,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:52:49,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:52:49,018 INFO L87 Difference]: Start difference. First operand 1554 states and 5355 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:51,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:52:51,032 INFO L93 Difference]: Finished difference Result 2751 states and 8703 transitions. [2022-11-26 00:52:51,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:52:51,033 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:52:51,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:52:51,038 INFO L225 Difference]: With dead ends: 2751 [2022-11-26 00:52:51,038 INFO L226 Difference]: Without dead ends: 2738 [2022-11-26 00:52:51,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=163, Invalid=343, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:52:51,038 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 233 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1342 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 1368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:52:51,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 50 Invalid, 1368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1342 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:52:51,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2738 states. [2022-11-26 00:52:51,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2738 to 1556. [2022-11-26 00:52:51,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1555 states have (on average 3.445659163987138) internal successors, (5358), 1555 states have internal predecessors, (5358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:51,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 5358 transitions. [2022-11-26 00:52:51,068 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 5358 transitions. Word has length 33 [2022-11-26 00:52:51,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:52:51,068 INFO L495 AbstractCegarLoop]: Abstraction has 1556 states and 5358 transitions. [2022-11-26 00:52:51,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:51,068 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 5358 transitions. [2022-11-26 00:52:51,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:52:51,070 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:52:51,071 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:52:51,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-11-26 00:52:51,071 INFO L420 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:52:51,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:52:51,071 INFO L85 PathProgramCache]: Analyzing trace with hash 737298365, now seen corresponding path program 102 times [2022-11-26 00:52:51,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:52:51,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759867115] [2022-11-26 00:52:51,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:52:51,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:52:51,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:52:52,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:52:52,187 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:52:52,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759867115] [2022-11-26 00:52:52,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759867115] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:52:52,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:52:52,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:52:52,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676385886] [2022-11-26 00:52:52,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:52:52,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:52:52,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:52:52,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:52:52,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:52:52,189 INFO L87 Difference]: Start difference. First operand 1556 states and 5358 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:54,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:52:54,187 INFO L93 Difference]: Finished difference Result 2767 states and 8723 transitions. [2022-11-26 00:52:54,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:52:54,187 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:52:54,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:52:54,193 INFO L225 Difference]: With dead ends: 2767 [2022-11-26 00:52:54,193 INFO L226 Difference]: Without dead ends: 2756 [2022-11-26 00:52:54,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=163, Invalid=343, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:52:54,193 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 254 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 1354 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 1379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:52:54,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 61 Invalid, 1379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1354 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:52:54,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2756 states. [2022-11-26 00:52:54,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2756 to 1558. [2022-11-26 00:52:54,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1558 states, 1557 states have (on average 3.443159922928709) internal successors, (5361), 1557 states have internal predecessors, (5361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:54,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 5361 transitions. [2022-11-26 00:52:54,223 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 5361 transitions. Word has length 33 [2022-11-26 00:52:54,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:52:54,223 INFO L495 AbstractCegarLoop]: Abstraction has 1558 states and 5361 transitions. [2022-11-26 00:52:54,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:54,223 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 5361 transitions. [2022-11-26 00:52:54,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:52:54,225 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:52:54,225 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:52:54,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-11-26 00:52:54,226 INFO L420 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:52:54,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:52:54,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1264650839, now seen corresponding path program 103 times [2022-11-26 00:52:54,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:52:54,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355156682] [2022-11-26 00:52:54,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:52:54,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:52:54,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:52:55,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:52:55,268 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:52:55,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355156682] [2022-11-26 00:52:55,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355156682] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:52:55,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:52:55,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:52:55,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772978216] [2022-11-26 00:52:55,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:52:55,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:52:55,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:52:55,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:52:55,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:52:55,269 INFO L87 Difference]: Start difference. First operand 1558 states and 5361 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:57,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:52:57,209 INFO L93 Difference]: Finished difference Result 2755 states and 8709 transitions. [2022-11-26 00:52:57,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:52:57,210 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:52:57,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:52:57,215 INFO L225 Difference]: With dead ends: 2755 [2022-11-26 00:52:57,215 INFO L226 Difference]: Without dead ends: 2736 [2022-11-26 00:52:57,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=163, Invalid=343, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:52:57,216 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 237 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 1303 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:52:57,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 58 Invalid, 1329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1303 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:52:57,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2736 states. [2022-11-26 00:52:57,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2736 to 1554. [2022-11-26 00:52:57,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1553 states have (on average 3.4468770122343853) internal successors, (5353), 1553 states have internal predecessors, (5353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:57,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 5353 transitions. [2022-11-26 00:52:57,246 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 5353 transitions. Word has length 33 [2022-11-26 00:52:57,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:52:57,246 INFO L495 AbstractCegarLoop]: Abstraction has 1554 states and 5353 transitions. [2022-11-26 00:52:57,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:52:57,246 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 5353 transitions. [2022-11-26 00:52:57,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:52:57,248 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:52:57,248 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:52:57,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-11-26 00:52:57,249 INFO L420 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:52:57,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:52:57,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1555158765, now seen corresponding path program 104 times [2022-11-26 00:52:57,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:52:57,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085235236] [2022-11-26 00:52:57,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:52:57,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:52:57,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:52:58,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:52:58,354 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:52:58,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085235236] [2022-11-26 00:52:58,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085235236] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:52:58,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:52:58,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:52:58,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955209494] [2022-11-26 00:52:58,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:52:58,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:52:58,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:52:58,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:52:58,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:52:58,356 INFO L87 Difference]: Start difference. First operand 1554 states and 5353 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:00,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:53:00,126 INFO L93 Difference]: Finished difference Result 2795 states and 8772 transitions. [2022-11-26 00:53:00,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:53:00,127 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:53:00,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:53:00,132 INFO L225 Difference]: With dead ends: 2795 [2022-11-26 00:53:00,132 INFO L226 Difference]: Without dead ends: 2784 [2022-11-26 00:53:00,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=163, Invalid=343, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:53:00,132 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 313 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1280 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 1304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:53:00,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 50 Invalid, 1304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1280 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-26 00:53:00,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2784 states. [2022-11-26 00:53:00,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2784 to 1558. [2022-11-26 00:53:00,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1558 states, 1557 states have (on average 3.4444444444444446) internal successors, (5363), 1557 states have internal predecessors, (5363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:00,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 5363 transitions. [2022-11-26 00:53:00,162 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 5363 transitions. Word has length 33 [2022-11-26 00:53:00,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:53:00,162 INFO L495 AbstractCegarLoop]: Abstraction has 1558 states and 5363 transitions. [2022-11-26 00:53:00,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:00,162 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 5363 transitions. [2022-11-26 00:53:00,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:53:00,165 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:53:00,165 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:53:00,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-11-26 00:53:00,165 INFO L420 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:53:00,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:53:00,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1656220047, now seen corresponding path program 105 times [2022-11-26 00:53:00,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:53:00,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17908405] [2022-11-26 00:53:00,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:53:00,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:53:00,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:53:01,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:53:01,356 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:53:01,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17908405] [2022-11-26 00:53:01,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17908405] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:53:01,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:53:01,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:53:01,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643911920] [2022-11-26 00:53:01,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:53:01,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:53:01,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:53:01,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:53:01,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:53:01,357 INFO L87 Difference]: Start difference. First operand 1558 states and 5363 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:03,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:53:03,261 INFO L93 Difference]: Finished difference Result 2797 states and 8774 transitions. [2022-11-26 00:53:03,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:53:03,262 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:53:03,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:53:03,267 INFO L225 Difference]: With dead ends: 2797 [2022-11-26 00:53:03,267 INFO L226 Difference]: Without dead ends: 2782 [2022-11-26 00:53:03,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=163, Invalid=343, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:53:03,267 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 280 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 1434 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 1458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:53:03,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 48 Invalid, 1458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1434 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:53:03,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2782 states. [2022-11-26 00:53:03,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2782 to 1556. [2022-11-26 00:53:03,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1555 states have (on average 3.445659163987138) internal successors, (5358), 1555 states have internal predecessors, (5358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:03,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 5358 transitions. [2022-11-26 00:53:03,314 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 5358 transitions. Word has length 33 [2022-11-26 00:53:03,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:53:03,314 INFO L495 AbstractCegarLoop]: Abstraction has 1556 states and 5358 transitions. [2022-11-26 00:53:03,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:03,315 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 5358 transitions. [2022-11-26 00:53:03,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:53:03,318 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:53:03,318 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:53:03,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-11-26 00:53:03,319 INFO L420 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:53:03,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:53:03,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1139370677, now seen corresponding path program 106 times [2022-11-26 00:53:03,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:53:03,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665832177] [2022-11-26 00:53:03,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:53:03,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:53:03,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:53:04,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:53:04,469 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:53:04,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665832177] [2022-11-26 00:53:04,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665832177] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:53:04,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:53:04,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:53:04,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272012593] [2022-11-26 00:53:04,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:53:04,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:53:04,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:53:04,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:53:04,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:53:04,470 INFO L87 Difference]: Start difference. First operand 1556 states and 5358 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:06,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:53:06,443 INFO L93 Difference]: Finished difference Result 2789 states and 8758 transitions. [2022-11-26 00:53:06,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:53:06,443 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:53:06,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:53:06,448 INFO L225 Difference]: With dead ends: 2789 [2022-11-26 00:53:06,449 INFO L226 Difference]: Without dead ends: 2778 [2022-11-26 00:53:06,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=163, Invalid=343, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:53:06,449 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 274 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 1453 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 1477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:53:06,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 68 Invalid, 1477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1453 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:53:06,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2778 states. [2022-11-26 00:53:06,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2778 to 1558. [2022-11-26 00:53:06,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1558 states, 1557 states have (on average 3.443159922928709) internal successors, (5361), 1557 states have internal predecessors, (5361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:06,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 5361 transitions. [2022-11-26 00:53:06,479 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 5361 transitions. Word has length 33 [2022-11-26 00:53:06,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:53:06,480 INFO L495 AbstractCegarLoop]: Abstraction has 1558 states and 5361 transitions. [2022-11-26 00:53:06,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:06,480 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 5361 transitions. [2022-11-26 00:53:06,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:53:06,482 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:53:06,482 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:53:06,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-11-26 00:53:06,482 INFO L420 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:53:06,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:53:06,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1666723151, now seen corresponding path program 107 times [2022-11-26 00:53:06,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:53:06,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80122588] [2022-11-26 00:53:06,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:53:06,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:53:06,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:53:07,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:53:07,541 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:53:07,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80122588] [2022-11-26 00:53:07,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80122588] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:53:07,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:53:07,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:53:07,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344148593] [2022-11-26 00:53:07,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:53:07,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:53:07,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:53:07,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:53:07,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:53:07,543 INFO L87 Difference]: Start difference. First operand 1558 states and 5361 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:09,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:53:09,493 INFO L93 Difference]: Finished difference Result 2793 states and 8764 transitions. [2022-11-26 00:53:09,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:53:09,494 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:53:09,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:53:09,499 INFO L225 Difference]: With dead ends: 2793 [2022-11-26 00:53:09,499 INFO L226 Difference]: Without dead ends: 2776 [2022-11-26 00:53:09,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=163, Invalid=343, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:53:09,499 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 289 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 1345 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 1369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:53:09,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 60 Invalid, 1369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1345 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:53:09,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2776 states. [2022-11-26 00:53:09,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2776 to 1556. [2022-11-26 00:53:09,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1555 states have (on average 3.4443729903536977) internal successors, (5356), 1555 states have internal predecessors, (5356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:09,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 5356 transitions. [2022-11-26 00:53:09,528 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 5356 transitions. Word has length 33 [2022-11-26 00:53:09,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:53:09,528 INFO L495 AbstractCegarLoop]: Abstraction has 1556 states and 5356 transitions. [2022-11-26 00:53:09,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:09,529 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 5356 transitions. [2022-11-26 00:53:09,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:53:09,531 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:53:09,531 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:53:09,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-11-26 00:53:09,531 INFO L420 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:53:09,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:53:09,531 INFO L85 PathProgramCache]: Analyzing trace with hash 824277557, now seen corresponding path program 108 times [2022-11-26 00:53:09,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:53:09,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335343187] [2022-11-26 00:53:09,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:53:09,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:53:09,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:53:10,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:53:10,579 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:53:10,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335343187] [2022-11-26 00:53:10,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335343187] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:53:10,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:53:10,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:53:10,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259281081] [2022-11-26 00:53:10,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:53:10,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:53:10,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:53:10,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:53:10,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:53:10,581 INFO L87 Difference]: Start difference. First operand 1556 states and 5356 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:12,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:53:12,473 INFO L93 Difference]: Finished difference Result 2777 states and 8743 transitions. [2022-11-26 00:53:12,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:53:12,473 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:53:12,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:53:12,478 INFO L225 Difference]: With dead ends: 2777 [2022-11-26 00:53:12,478 INFO L226 Difference]: Without dead ends: 2764 [2022-11-26 00:53:12,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=163, Invalid=343, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:53:12,479 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 256 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 1398 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 1422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:53:12,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 51 Invalid, 1422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1398 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:53:12,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2764 states. [2022-11-26 00:53:12,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2764 to 1560. [2022-11-26 00:53:12,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1560 states, 1559 states have (on average 3.440025657472739) internal successors, (5363), 1559 states have internal predecessors, (5363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:12,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1560 states to 1560 states and 5363 transitions. [2022-11-26 00:53:12,510 INFO L78 Accepts]: Start accepts. Automaton has 1560 states and 5363 transitions. Word has length 33 [2022-11-26 00:53:12,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:53:12,510 INFO L495 AbstractCegarLoop]: Abstraction has 1560 states and 5363 transitions. [2022-11-26 00:53:12,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:12,511 INFO L276 IsEmpty]: Start isEmpty. Operand 1560 states and 5363 transitions. [2022-11-26 00:53:12,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:53:12,514 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:53:12,514 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:53:12,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-11-26 00:53:12,515 INFO L420 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:53:12,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:53:12,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1859748781, now seen corresponding path program 109 times [2022-11-26 00:53:12,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:53:12,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958215525] [2022-11-26 00:53:12,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:53:12,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:53:12,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:53:13,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:53:13,813 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:53:13,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958215525] [2022-11-26 00:53:13,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958215525] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:53:13,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:53:13,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:53:13,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769843700] [2022-11-26 00:53:13,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:53:13,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:53:13,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:53:13,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:53:13,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:53:13,815 INFO L87 Difference]: Start difference. First operand 1560 states and 5363 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:15,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:53:15,627 INFO L93 Difference]: Finished difference Result 2773 states and 8732 transitions. [2022-11-26 00:53:15,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:53:15,628 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:53:15,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:53:15,633 INFO L225 Difference]: With dead ends: 2773 [2022-11-26 00:53:15,633 INFO L226 Difference]: Without dead ends: 2750 [2022-11-26 00:53:15,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=163, Invalid=343, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:53:15,633 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 260 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 1261 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 1285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:53:15,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 48 Invalid, 1285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1261 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:53:15,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2750 states. [2022-11-26 00:53:15,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2750 to 1552. [2022-11-26 00:53:15,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1552 states, 1551 states have (on average 3.4480980012894906) internal successors, (5348), 1551 states have internal predecessors, (5348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:15,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1552 states to 1552 states and 5348 transitions. [2022-11-26 00:53:15,662 INFO L78 Accepts]: Start accepts. Automaton has 1552 states and 5348 transitions. Word has length 33 [2022-11-26 00:53:15,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:53:15,663 INFO L495 AbstractCegarLoop]: Abstraction has 1552 states and 5348 transitions. [2022-11-26 00:53:15,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:15,663 INFO L276 IsEmpty]: Start isEmpty. Operand 1552 states and 5348 transitions. [2022-11-26 00:53:15,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:53:15,665 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:53:15,665 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:53:15,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-11-26 00:53:15,665 INFO L420 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:53:15,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:53:15,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1759929931, now seen corresponding path program 110 times [2022-11-26 00:53:15,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:53:15,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079842906] [2022-11-26 00:53:15,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:53:15,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:53:15,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:53:16,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:53:16,777 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:53:16,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079842906] [2022-11-26 00:53:16,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079842906] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:53:16,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:53:16,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:53:16,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300036628] [2022-11-26 00:53:16,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:53:16,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:53:16,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:53:16,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:53:16,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:53:16,778 INFO L87 Difference]: Start difference. First operand 1552 states and 5348 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:18,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:53:18,706 INFO L93 Difference]: Finished difference Result 2745 states and 8685 transitions. [2022-11-26 00:53:18,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:53:18,707 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:53:18,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:53:18,713 INFO L225 Difference]: With dead ends: 2745 [2022-11-26 00:53:18,713 INFO L226 Difference]: Without dead ends: 2732 [2022-11-26 00:53:18,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=167, Invalid=339, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:53:18,714 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 219 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1385 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 1413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:53:18,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 45 Invalid, 1413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1385 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:53:18,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2732 states. [2022-11-26 00:53:18,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2732 to 1556. [2022-11-26 00:53:18,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1555 states have (on average 3.4443729903536977) internal successors, (5356), 1555 states have internal predecessors, (5356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:18,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 5356 transitions. [2022-11-26 00:53:18,743 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 5356 transitions. Word has length 33 [2022-11-26 00:53:18,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:53:18,744 INFO L495 AbstractCegarLoop]: Abstraction has 1556 states and 5356 transitions. [2022-11-26 00:53:18,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:18,744 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 5356 transitions. [2022-11-26 00:53:18,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:53:18,746 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:53:18,746 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:53:18,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-11-26 00:53:18,747 INFO L420 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:53:18,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:53:18,747 INFO L85 PathProgramCache]: Analyzing trace with hash -222939203, now seen corresponding path program 111 times [2022-11-26 00:53:18,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:53:18,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206027639] [2022-11-26 00:53:18,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:53:18,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:53:18,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:53:19,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:53:19,979 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:53:19,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206027639] [2022-11-26 00:53:19,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206027639] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:53:19,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:53:19,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:53:19,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018683231] [2022-11-26 00:53:19,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:53:19,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:53:19,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:53:19,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:53:19,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:53:19,980 INFO L87 Difference]: Start difference. First operand 1556 states and 5356 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:21,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:53:21,712 INFO L93 Difference]: Finished difference Result 2759 states and 8701 transitions. [2022-11-26 00:53:21,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:53:21,713 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:53:21,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:53:21,718 INFO L225 Difference]: With dead ends: 2759 [2022-11-26 00:53:21,718 INFO L226 Difference]: Without dead ends: 2748 [2022-11-26 00:53:21,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=167, Invalid=339, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:53:21,718 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 278 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 1245 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 1272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:53:21,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 49 Invalid, 1272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1245 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-26 00:53:21,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2748 states. [2022-11-26 00:53:21,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2748 to 1558. [2022-11-26 00:53:21,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1558 states, 1557 states have (on average 3.4418754014129735) internal successors, (5359), 1557 states have internal predecessors, (5359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:21,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 5359 transitions. [2022-11-26 00:53:21,755 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 5359 transitions. Word has length 33 [2022-11-26 00:53:21,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:53:21,755 INFO L495 AbstractCegarLoop]: Abstraction has 1558 states and 5359 transitions. [2022-11-26 00:53:21,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:21,756 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 5359 transitions. [2022-11-26 00:53:21,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:53:21,758 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:53:21,758 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:53:21,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-11-26 00:53:21,758 INFO L420 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:53:21,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:53:21,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1306527687, now seen corresponding path program 112 times [2022-11-26 00:53:21,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:53:21,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103550327] [2022-11-26 00:53:21,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:53:21,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:53:21,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:53:22,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:53:22,923 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:53:22,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103550327] [2022-11-26 00:53:22,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103550327] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:53:22,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:53:22,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:53:22,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290822200] [2022-11-26 00:53:22,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:53:22,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:53:22,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:53:22,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:53:22,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:53:22,925 INFO L87 Difference]: Start difference. First operand 1558 states and 5359 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:24,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:53:24,680 INFO L93 Difference]: Finished difference Result 2747 states and 8687 transitions. [2022-11-26 00:53:24,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:53:24,680 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:53:24,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:53:24,685 INFO L225 Difference]: With dead ends: 2747 [2022-11-26 00:53:24,686 INFO L226 Difference]: Without dead ends: 2730 [2022-11-26 00:53:24,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=167, Invalid=339, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:53:24,686 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 244 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 1261 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 1287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:53:24,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 36 Invalid, 1287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1261 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:53:24,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2730 states. [2022-11-26 00:53:24,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2730 to 1554. [2022-11-26 00:53:24,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1553 states have (on average 3.445589182227946) internal successors, (5351), 1553 states have internal predecessors, (5351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:24,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 5351 transitions. [2022-11-26 00:53:24,721 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 5351 transitions. Word has length 33 [2022-11-26 00:53:24,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:53:24,722 INFO L495 AbstractCegarLoop]: Abstraction has 1554 states and 5351 transitions. [2022-11-26 00:53:24,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:24,722 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 5351 transitions. [2022-11-26 00:53:24,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:53:24,724 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:53:24,725 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:53:24,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-11-26 00:53:24,725 INFO L420 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:53:24,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:53:24,725 INFO L85 PathProgramCache]: Analyzing trace with hash -686251757, now seen corresponding path program 113 times [2022-11-26 00:53:24,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:53:24,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285317125] [2022-11-26 00:53:24,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:53:24,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:53:24,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:53:26,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:53:26,082 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:53:26,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285317125] [2022-11-26 00:53:26,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285317125] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:53:26,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:53:26,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:53:26,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491803591] [2022-11-26 00:53:26,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:53:26,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:53:26,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:53:26,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:53:26,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:53:26,083 INFO L87 Difference]: Start difference. First operand 1554 states and 5351 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:27,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:53:27,777 INFO L93 Difference]: Finished difference Result 2745 states and 8684 transitions. [2022-11-26 00:53:27,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:53:27,778 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:53:27,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:53:27,783 INFO L225 Difference]: With dead ends: 2745 [2022-11-26 00:53:27,783 INFO L226 Difference]: Without dead ends: 2734 [2022-11-26 00:53:27,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=171, Invalid=335, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:53:27,783 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 232 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1287 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 1313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:53:27,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 45 Invalid, 1313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1287 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-26 00:53:27,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2734 states. [2022-11-26 00:53:27,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2734 to 1558. [2022-11-26 00:53:27,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1558 states, 1557 states have (on average 3.4418754014129735) internal successors, (5359), 1557 states have internal predecessors, (5359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:27,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 5359 transitions. [2022-11-26 00:53:27,815 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 5359 transitions. Word has length 33 [2022-11-26 00:53:27,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:53:27,815 INFO L495 AbstractCegarLoop]: Abstraction has 1558 states and 5359 transitions. [2022-11-26 00:53:27,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:27,815 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 5359 transitions. [2022-11-26 00:53:27,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:53:27,817 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:53:27,818 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:53:27,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-11-26 00:53:27,818 INFO L420 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:53:27,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:53:27,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1769840241, now seen corresponding path program 114 times [2022-11-26 00:53:27,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:53:27,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539672857] [2022-11-26 00:53:27,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:53:27,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:53:27,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:53:29,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:53:29,072 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:53:29,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539672857] [2022-11-26 00:53:29,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539672857] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:53:29,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:53:29,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:53:29,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57722416] [2022-11-26 00:53:29,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:53:29,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:53:29,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:53:29,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:53:29,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:53:29,073 INFO L87 Difference]: Start difference. First operand 1558 states and 5359 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:31,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:53:31,071 INFO L93 Difference]: Finished difference Result 2747 states and 8686 transitions. [2022-11-26 00:53:31,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:53:31,072 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:53:31,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:53:31,078 INFO L225 Difference]: With dead ends: 2747 [2022-11-26 00:53:31,078 INFO L226 Difference]: Without dead ends: 2732 [2022-11-26 00:53:31,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=171, Invalid=335, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:53:31,078 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 257 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 1052 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 1078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:53:31,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 37 Invalid, 1078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1052 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:53:31,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2732 states. [2022-11-26 00:53:31,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2732 to 1556. [2022-11-26 00:53:31,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1555 states have (on average 3.4430868167202573) internal successors, (5354), 1555 states have internal predecessors, (5354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:31,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 5354 transitions. [2022-11-26 00:53:31,117 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 5354 transitions. Word has length 33 [2022-11-26 00:53:31,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:53:31,117 INFO L495 AbstractCegarLoop]: Abstraction has 1556 states and 5354 transitions. [2022-11-26 00:53:31,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:31,117 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 5354 transitions. [2022-11-26 00:53:31,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:53:31,120 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:53:31,120 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:53:31,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-11-26 00:53:31,120 INFO L420 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:53:31,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:53:31,121 INFO L85 PathProgramCache]: Analyzing trace with hash 2018780789, now seen corresponding path program 115 times [2022-11-26 00:53:31,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:53:31,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341011685] [2022-11-26 00:53:31,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:53:31,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:53:31,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:53:32,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:53:32,440 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:53:32,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341011685] [2022-11-26 00:53:32,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341011685] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:53:32,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:53:32,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:53:32,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274813554] [2022-11-26 00:53:32,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:53:32,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:53:32,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:53:32,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:53:32,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:53:32,441 INFO L87 Difference]: Start difference. First operand 1556 states and 5354 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:34,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:53:34,262 INFO L93 Difference]: Finished difference Result 2731 states and 8665 transitions. [2022-11-26 00:53:34,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:53:34,262 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:53:34,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:53:34,268 INFO L225 Difference]: With dead ends: 2731 [2022-11-26 00:53:34,268 INFO L226 Difference]: Without dead ends: 2710 [2022-11-26 00:53:34,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=173, Invalid=333, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:53:34,268 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 191 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 1214 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 1240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:53:34,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 39 Invalid, 1240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1214 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:53:34,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2710 states. [2022-11-26 00:53:34,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2710 to 1552. [2022-11-26 00:53:34,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1552 states, 1551 states have (on average 3.4468085106382977) internal successors, (5346), 1551 states have internal predecessors, (5346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:34,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1552 states to 1552 states and 5346 transitions. [2022-11-26 00:53:34,299 INFO L78 Accepts]: Start accepts. Automaton has 1552 states and 5346 transitions. Word has length 33 [2022-11-26 00:53:34,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:53:34,299 INFO L495 AbstractCegarLoop]: Abstraction has 1552 states and 5346 transitions. [2022-11-26 00:53:34,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:34,300 INFO L276 IsEmpty]: Start isEmpty. Operand 1552 states and 5346 transitions. [2022-11-26 00:53:34,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:53:34,302 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:53:34,302 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:53:34,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-11-26 00:53:34,302 INFO L420 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:53:34,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:53:34,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1262021245, now seen corresponding path program 116 times [2022-11-26 00:53:34,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:53:34,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551781467] [2022-11-26 00:53:34,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:53:34,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:53:34,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:53:35,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:53:35,405 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:53:35,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551781467] [2022-11-26 00:53:35,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551781467] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:53:35,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:53:35,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:53:35,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808080221] [2022-11-26 00:53:35,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:53:35,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:53:35,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:53:35,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:53:35,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:53:35,407 INFO L87 Difference]: Start difference. First operand 1552 states and 5346 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:37,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:53:37,295 INFO L93 Difference]: Finished difference Result 2771 states and 8728 transitions. [2022-11-26 00:53:37,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-26 00:53:37,295 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:53:37,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:53:37,300 INFO L225 Difference]: With dead ends: 2771 [2022-11-26 00:53:37,300 INFO L226 Difference]: Without dead ends: 2760 [2022-11-26 00:53:37,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=183, Invalid=369, Unknown=0, NotChecked=0, Total=552 [2022-11-26 00:53:37,301 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 284 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 1314 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 1339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:53:37,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 51 Invalid, 1339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1314 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:53:37,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2760 states. [2022-11-26 00:53:37,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2760 to 1558. [2022-11-26 00:53:37,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1558 states, 1557 states have (on average 3.4444444444444446) internal successors, (5363), 1557 states have internal predecessors, (5363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:37,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 5363 transitions. [2022-11-26 00:53:37,331 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 5363 transitions. Word has length 33 [2022-11-26 00:53:37,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:53:37,331 INFO L495 AbstractCegarLoop]: Abstraction has 1558 states and 5363 transitions. [2022-11-26 00:53:37,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:37,331 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 5363 transitions. [2022-11-26 00:53:37,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:53:37,333 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:53:37,333 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:53:37,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-11-26 00:53:37,334 INFO L420 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:53:37,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:53:37,334 INFO L85 PathProgramCache]: Analyzing trace with hash 178432761, now seen corresponding path program 117 times [2022-11-26 00:53:37,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:53:37,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82139731] [2022-11-26 00:53:37,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:53:37,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:53:37,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:53:38,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:53:38,458 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:53:38,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82139731] [2022-11-26 00:53:38,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82139731] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:53:38,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:53:38,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:53:38,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743393753] [2022-11-26 00:53:38,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:53:38,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:53:38,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:53:38,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:53:38,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:53:38,459 INFO L87 Difference]: Start difference. First operand 1558 states and 5363 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:40,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:53:40,337 INFO L93 Difference]: Finished difference Result 2773 states and 8730 transitions. [2022-11-26 00:53:40,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-26 00:53:40,337 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:53:40,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:53:40,343 INFO L225 Difference]: With dead ends: 2773 [2022-11-26 00:53:40,343 INFO L226 Difference]: Without dead ends: 2758 [2022-11-26 00:53:40,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=183, Invalid=369, Unknown=0, NotChecked=0, Total=552 [2022-11-26 00:53:40,343 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 281 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1341 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 1366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:53:40,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 46 Invalid, 1366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1341 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:53:40,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2758 states. [2022-11-26 00:53:40,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2758 to 1556. [2022-11-26 00:53:40,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1555 states have (on average 3.445659163987138) internal successors, (5358), 1555 states have internal predecessors, (5358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:40,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 5358 transitions. [2022-11-26 00:53:40,377 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 5358 transitions. Word has length 33 [2022-11-26 00:53:40,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:53:40,377 INFO L495 AbstractCegarLoop]: Abstraction has 1556 states and 5358 transitions. [2022-11-26 00:53:40,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:40,377 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 5358 transitions. [2022-11-26 00:53:40,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:53:40,379 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:53:40,379 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:53:40,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-11-26 00:53:40,380 INFO L420 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:53:40,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:53:40,380 INFO L85 PathProgramCache]: Analyzing trace with hash -338416609, now seen corresponding path program 118 times [2022-11-26 00:53:40,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:53:40,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974759582] [2022-11-26 00:53:40,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:53:40,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:53:40,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:53:41,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:53:41,525 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:53:41,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974759582] [2022-11-26 00:53:41,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974759582] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:53:41,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:53:41,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:53:41,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21414387] [2022-11-26 00:53:41,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:53:41,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:53:41,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:53:41,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:53:41,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:53:41,527 INFO L87 Difference]: Start difference. First operand 1556 states and 5358 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:43,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:53:43,616 INFO L93 Difference]: Finished difference Result 2755 states and 8705 transitions. [2022-11-26 00:53:43,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-26 00:53:43,617 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:53:43,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:53:43,622 INFO L225 Difference]: With dead ends: 2755 [2022-11-26 00:53:43,622 INFO L226 Difference]: Without dead ends: 2744 [2022-11-26 00:53:43,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=218, Invalid=432, Unknown=0, NotChecked=0, Total=650 [2022-11-26 00:53:43,622 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 257 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 1252 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 1278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:53:43,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 62 Invalid, 1278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1252 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:53:43,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2744 states. [2022-11-26 00:53:43,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2744 to 1558. [2022-11-26 00:53:43,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1558 states, 1557 states have (on average 3.443159922928709) internal successors, (5361), 1557 states have internal predecessors, (5361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:43,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 5361 transitions. [2022-11-26 00:53:43,654 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 5361 transitions. Word has length 33 [2022-11-26 00:53:43,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:53:43,654 INFO L495 AbstractCegarLoop]: Abstraction has 1558 states and 5361 transitions. [2022-11-26 00:53:43,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:43,654 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 5361 transitions. [2022-11-26 00:53:43,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:53:43,657 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:53:43,657 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:53:43,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-11-26 00:53:43,657 INFO L420 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:53:43,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:53:43,658 INFO L85 PathProgramCache]: Analyzing trace with hash 188935865, now seen corresponding path program 119 times [2022-11-26 00:53:43,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:53:43,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761387654] [2022-11-26 00:53:43,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:53:43,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:53:43,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:53:44,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:53:44,780 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:53:44,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761387654] [2022-11-26 00:53:44,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761387654] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:53:44,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:53:44,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:53:44,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261027790] [2022-11-26 00:53:44,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:53:44,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:53:44,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:53:44,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:53:44,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:53:44,784 INFO L87 Difference]: Start difference. First operand 1558 states and 5361 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:46,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:53:46,803 INFO L93 Difference]: Finished difference Result 2757 states and 8708 transitions. [2022-11-26 00:53:46,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-26 00:53:46,804 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:53:46,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:53:46,809 INFO L225 Difference]: With dead ends: 2757 [2022-11-26 00:53:46,809 INFO L226 Difference]: Without dead ends: 2740 [2022-11-26 00:53:46,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=199, Invalid=401, Unknown=0, NotChecked=0, Total=600 [2022-11-26 00:53:46,810 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 246 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 1216 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 1242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:53:46,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 55 Invalid, 1242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1216 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:53:46,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2740 states. [2022-11-26 00:53:46,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2740 to 1556. [2022-11-26 00:53:46,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1555 states have (on average 3.4443729903536977) internal successors, (5356), 1555 states have internal predecessors, (5356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:46,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 5356 transitions. [2022-11-26 00:53:46,844 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 5356 transitions. Word has length 33 [2022-11-26 00:53:46,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:53:46,844 INFO L495 AbstractCegarLoop]: Abstraction has 1556 states and 5356 transitions. [2022-11-26 00:53:46,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:46,844 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 5356 transitions. [2022-11-26 00:53:46,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:53:46,847 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:53:46,847 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:53:46,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-11-26 00:53:46,847 INFO L420 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:53:46,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:53:46,848 INFO L85 PathProgramCache]: Analyzing trace with hash -653509729, now seen corresponding path program 120 times [2022-11-26 00:53:46,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:53:46,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064383264] [2022-11-26 00:53:46,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:53:46,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:53:46,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:53:48,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:53:48,094 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:53:48,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064383264] [2022-11-26 00:53:48,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064383264] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:53:48,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:53:48,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:53:48,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017564765] [2022-11-26 00:53:48,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:53:48,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:53:48,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:53:48,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:53:48,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:53:48,096 INFO L87 Difference]: Start difference. First operand 1556 states and 5356 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:49,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:53:49,988 INFO L93 Difference]: Finished difference Result 2777 states and 8737 transitions. [2022-11-26 00:53:49,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-26 00:53:49,989 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:53:49,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:53:49,995 INFO L225 Difference]: With dead ends: 2777 [2022-11-26 00:53:49,995 INFO L226 Difference]: Without dead ends: 2764 [2022-11-26 00:53:49,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=183, Invalid=369, Unknown=0, NotChecked=0, Total=552 [2022-11-26 00:53:49,995 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 298 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 1129 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 1154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:53:49,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 42 Invalid, 1154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1129 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:53:50,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2764 states. [2022-11-26 00:53:50,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2764 to 1560. [2022-11-26 00:53:50,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1560 states, 1559 states have (on average 3.440025657472739) internal successors, (5363), 1559 states have internal predecessors, (5363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:50,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1560 states to 1560 states and 5363 transitions. [2022-11-26 00:53:50,035 INFO L78 Accepts]: Start accepts. Automaton has 1560 states and 5363 transitions. Word has length 33 [2022-11-26 00:53:50,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:53:50,035 INFO L495 AbstractCegarLoop]: Abstraction has 1560 states and 5363 transitions. [2022-11-26 00:53:50,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:50,035 INFO L276 IsEmpty]: Start isEmpty. Operand 1560 states and 5363 transitions. [2022-11-26 00:53:50,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:53:50,038 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:53:50,038 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:53:50,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-11-26 00:53:50,038 INFO L420 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:53:50,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:53:50,039 INFO L85 PathProgramCache]: Analyzing trace with hash 957431229, now seen corresponding path program 121 times [2022-11-26 00:53:50,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:53:50,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590631119] [2022-11-26 00:53:50,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:53:50,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:53:50,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:53:51,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:53:51,145 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:53:51,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590631119] [2022-11-26 00:53:51,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590631119] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:53:51,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:53:51,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:53:51,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998415419] [2022-11-26 00:53:51,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:53:51,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:53:51,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:53:51,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:53:51,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:53:51,147 INFO L87 Difference]: Start difference. First operand 1560 states and 5363 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:53,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:53:53,079 INFO L93 Difference]: Finished difference Result 2773 states and 8726 transitions. [2022-11-26 00:53:53,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-26 00:53:53,080 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:53:53,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:53:53,085 INFO L225 Difference]: With dead ends: 2773 [2022-11-26 00:53:53,085 INFO L226 Difference]: Without dead ends: 2752 [2022-11-26 00:53:53,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=183, Invalid=369, Unknown=0, NotChecked=0, Total=552 [2022-11-26 00:53:53,086 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 262 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1192 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 1217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:53:53,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 50 Invalid, 1217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1192 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:53:53,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2752 states. [2022-11-26 00:53:53,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2752 to 1554. [2022-11-26 00:53:53,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1553 states have (on average 3.445589182227946) internal successors, (5351), 1553 states have internal predecessors, (5351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:53,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 5351 transitions. [2022-11-26 00:53:53,117 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 5351 transitions. Word has length 33 [2022-11-26 00:53:53,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:53:53,117 INFO L495 AbstractCegarLoop]: Abstraction has 1554 states and 5351 transitions. [2022-11-26 00:53:53,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:53,118 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 5351 transitions. [2022-11-26 00:53:53,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:53:53,120 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:53:53,120 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:53:53,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-11-26 00:53:53,120 INFO L420 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:53:53,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:53:53,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1529397699, now seen corresponding path program 122 times [2022-11-26 00:53:53,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:53:53,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222063182] [2022-11-26 00:53:53,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:53:53,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:53:53,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:53:54,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:53:54,302 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:53:54,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222063182] [2022-11-26 00:53:54,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222063182] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:53:54,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:53:54,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:53:54,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357799492] [2022-11-26 00:53:54,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:53:54,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:53:54,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:53:54,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:53:54,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:53:54,304 INFO L87 Difference]: Start difference. First operand 1554 states and 5351 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:56,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:53:56,282 INFO L93 Difference]: Finished difference Result 2757 states and 8703 transitions. [2022-11-26 00:53:56,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-26 00:53:56,283 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:53:56,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:53:56,288 INFO L225 Difference]: With dead ends: 2757 [2022-11-26 00:53:56,288 INFO L226 Difference]: Without dead ends: 2746 [2022-11-26 00:53:56,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=223, Invalid=427, Unknown=0, NotChecked=0, Total=650 [2022-11-26 00:53:56,289 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 262 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 1100 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:53:56,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 49 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1100 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:53:56,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2746 states. [2022-11-26 00:53:56,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2746 to 1558. [2022-11-26 00:53:56,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1558 states, 1557 states have (on average 3.4418754014129735) internal successors, (5359), 1557 states have internal predecessors, (5359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:56,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 5359 transitions. [2022-11-26 00:53:56,328 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 5359 transitions. Word has length 33 [2022-11-26 00:53:56,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:53:56,328 INFO L495 AbstractCegarLoop]: Abstraction has 1558 states and 5359 transitions. [2022-11-26 00:53:56,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:56,328 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 5359 transitions. [2022-11-26 00:53:56,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:53:56,331 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:53:56,331 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:53:56,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-11-26 00:53:56,331 INFO L420 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:53:56,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:53:56,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1681981113, now seen corresponding path program 123 times [2022-11-26 00:53:56,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:53:56,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623495219] [2022-11-26 00:53:56,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:53:56,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:53:56,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:53:57,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:53:57,600 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:53:57,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623495219] [2022-11-26 00:53:57,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623495219] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:53:57,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:53:57,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:53:57,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101503733] [2022-11-26 00:53:57,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:53:57,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:53:57,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:53:57,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:53:57,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:53:57,601 INFO L87 Difference]: Start difference. First operand 1558 states and 5359 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:59,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:53:59,729 INFO L93 Difference]: Finished difference Result 2757 states and 8702 transitions. [2022-11-26 00:53:59,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-26 00:53:59,729 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:53:59,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:53:59,735 INFO L225 Difference]: With dead ends: 2757 [2022-11-26 00:53:59,735 INFO L226 Difference]: Without dead ends: 2742 [2022-11-26 00:53:59,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=204, Invalid=396, Unknown=0, NotChecked=0, Total=600 [2022-11-26 00:53:59,736 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 236 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 1349 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 1378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:53:59,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 51 Invalid, 1378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1349 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:53:59,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2742 states. [2022-11-26 00:53:59,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2742 to 1556. [2022-11-26 00:53:59,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1555 states have (on average 3.4430868167202573) internal successors, (5354), 1555 states have internal predecessors, (5354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:59,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 5354 transitions. [2022-11-26 00:53:59,774 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 5354 transitions. Word has length 33 [2022-11-26 00:53:59,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:53:59,775 INFO L495 AbstractCegarLoop]: Abstraction has 1556 states and 5354 transitions. [2022-11-26 00:53:59,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:53:59,775 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 5354 transitions. [2022-11-26 00:53:59,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:53:59,777 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:53:59,778 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:53:59,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-11-26 00:53:59,778 INFO L420 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:53:59,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:53:59,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1175634847, now seen corresponding path program 124 times [2022-11-26 00:53:59,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:53:59,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202296374] [2022-11-26 00:53:59,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:53:59,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:53:59,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:54:01,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:54:01,057 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:54:01,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202296374] [2022-11-26 00:54:01,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202296374] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:54:01,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:54:01,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:54:01,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476987002] [2022-11-26 00:54:01,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:54:01,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:54:01,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:54:01,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:54:01,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:54:01,058 INFO L87 Difference]: Start difference. First operand 1556 states and 5354 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:02,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:54:02,968 INFO L93 Difference]: Finished difference Result 2745 states and 8688 transitions. [2022-11-26 00:54:02,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-26 00:54:02,968 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:54:02,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:54:02,974 INFO L225 Difference]: With dead ends: 2745 [2022-11-26 00:54:02,974 INFO L226 Difference]: Without dead ends: 2726 [2022-11-26 00:54:02,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=206, Invalid=394, Unknown=0, NotChecked=0, Total=600 [2022-11-26 00:54:02,974 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 217 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 1175 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 1204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:54:02,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 49 Invalid, 1204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1175 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-26 00:54:02,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2726 states. [2022-11-26 00:54:03,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2726 to 1554. [2022-11-26 00:54:03,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1553 states have (on average 3.444301352221507) internal successors, (5349), 1553 states have internal predecessors, (5349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:03,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 5349 transitions. [2022-11-26 00:54:03,007 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 5349 transitions. Word has length 33 [2022-11-26 00:54:03,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:54:03,007 INFO L495 AbstractCegarLoop]: Abstraction has 1554 states and 5349 transitions. [2022-11-26 00:54:03,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:03,007 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 5349 transitions. [2022-11-26 00:54:03,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:54:03,010 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:54:03,010 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:54:03,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-11-26 00:54:03,010 INFO L420 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:54:03,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:54:03,010 INFO L85 PathProgramCache]: Analyzing trace with hash 829625209, now seen corresponding path program 125 times [2022-11-26 00:54:03,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:54:03,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66300766] [2022-11-26 00:54:03,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:54:03,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:54:03,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:54:04,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:54:04,361 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:54:04,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66300766] [2022-11-26 00:54:04,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66300766] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:54:04,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:54:04,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:54:04,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955351483] [2022-11-26 00:54:04,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:54:04,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:54:04,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:54:04,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:54:04,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:54:04,363 INFO L87 Difference]: Start difference. First operand 1554 states and 5349 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:06,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:54:06,418 INFO L93 Difference]: Finished difference Result 2745 states and 8679 transitions. [2022-11-26 00:54:06,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-26 00:54:06,418 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:54:06,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:54:06,424 INFO L225 Difference]: With dead ends: 2745 [2022-11-26 00:54:06,424 INFO L226 Difference]: Without dead ends: 2732 [2022-11-26 00:54:06,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=184, Invalid=368, Unknown=0, NotChecked=0, Total=552 [2022-11-26 00:54:06,424 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 238 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 1352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:54:06,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 53 Invalid, 1352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1326 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:54:06,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2732 states. [2022-11-26 00:54:06,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2732 to 1562. [2022-11-26 00:54:06,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1562 states, 1561 states have (on average 3.43818065342729) internal successors, (5367), 1561 states have internal predecessors, (5367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:06,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1562 states to 1562 states and 5367 transitions. [2022-11-26 00:54:06,459 INFO L78 Accepts]: Start accepts. Automaton has 1562 states and 5367 transitions. Word has length 33 [2022-11-26 00:54:06,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:54:06,459 INFO L495 AbstractCegarLoop]: Abstraction has 1562 states and 5367 transitions. [2022-11-26 00:54:06,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:06,459 INFO L276 IsEmpty]: Start isEmpty. Operand 1562 states and 5367 transitions. [2022-11-26 00:54:06,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:54:06,462 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:54:06,463 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:54:06,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-11-26 00:54:06,463 INFO L420 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:54:06,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:54:06,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1854401129, now seen corresponding path program 126 times [2022-11-26 00:54:06,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:54:06,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885801071] [2022-11-26 00:54:06,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:54:06,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:54:06,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:54:07,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:54:07,664 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:54:07,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885801071] [2022-11-26 00:54:07,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885801071] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:54:07,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:54:07,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:54:07,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758323511] [2022-11-26 00:54:07,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:54:07,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:54:07,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:54:07,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:54:07,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:54:07,666 INFO L87 Difference]: Start difference. First operand 1562 states and 5367 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:09,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:54:09,645 INFO L93 Difference]: Finished difference Result 2731 states and 8659 transitions. [2022-11-26 00:54:09,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-26 00:54:09,645 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:54:09,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:54:09,650 INFO L225 Difference]: With dead ends: 2731 [2022-11-26 00:54:09,650 INFO L226 Difference]: Without dead ends: 2712 [2022-11-26 00:54:09,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=185, Invalid=367, Unknown=0, NotChecked=0, Total=552 [2022-11-26 00:54:09,651 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 211 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 1414 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 1440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:54:09,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 59 Invalid, 1440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1414 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:54:09,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2712 states. [2022-11-26 00:54:09,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2712 to 1558. [2022-11-26 00:54:09,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1558 states, 1557 states have (on average 3.4399486191393707) internal successors, (5356), 1557 states have internal predecessors, (5356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:09,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 5356 transitions. [2022-11-26 00:54:09,680 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 5356 transitions. Word has length 33 [2022-11-26 00:54:09,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:54:09,681 INFO L495 AbstractCegarLoop]: Abstraction has 1558 states and 5356 transitions. [2022-11-26 00:54:09,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:09,681 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 5356 transitions. [2022-11-26 00:54:09,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:54:09,683 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:54:09,683 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:54:09,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-11-26 00:54:09,683 INFO L420 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:54:09,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:54:09,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1155221433, now seen corresponding path program 127 times [2022-11-26 00:54:09,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:54:09,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286906703] [2022-11-26 00:54:09,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:54:09,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:54:09,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:54:10,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:54:10,871 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:54:10,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286906703] [2022-11-26 00:54:10,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286906703] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:54:10,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:54:10,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:54:10,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988103926] [2022-11-26 00:54:10,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:54:10,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:54:10,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:54:10,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:54:10,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:54:10,872 INFO L87 Difference]: Start difference. First operand 1558 states and 5356 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:12,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:54:12,606 INFO L93 Difference]: Finished difference Result 2711 states and 8628 transitions. [2022-11-26 00:54:12,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-26 00:54:12,607 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:54:12,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:54:12,612 INFO L225 Difference]: With dead ends: 2711 [2022-11-26 00:54:12,612 INFO L226 Difference]: Without dead ends: 2678 [2022-11-26 00:54:12,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=187, Invalid=365, Unknown=0, NotChecked=0, Total=552 [2022-11-26 00:54:12,613 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 203 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 1107 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 1133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:54:12,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 38 Invalid, 1133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1107 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-26 00:54:12,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2678 states. [2022-11-26 00:54:12,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2678 to 1542. [2022-11-26 00:54:12,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1542 states, 1541 states have (on average 3.45554834523037) internal successors, (5325), 1541 states have internal predecessors, (5325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:12,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1542 states to 1542 states and 5325 transitions. [2022-11-26 00:54:12,652 INFO L78 Accepts]: Start accepts. Automaton has 1542 states and 5325 transitions. Word has length 33 [2022-11-26 00:54:12,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:54:12,652 INFO L495 AbstractCegarLoop]: Abstraction has 1542 states and 5325 transitions. [2022-11-26 00:54:12,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:12,652 INFO L276 IsEmpty]: Start isEmpty. Operand 1542 states and 5325 transitions. [2022-11-26 00:54:12,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:54:12,655 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:54:12,655 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:54:12,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-11-26 00:54:12,655 INFO L420 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:54:12,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:54:12,655 INFO L85 PathProgramCache]: Analyzing trace with hash 418094691, now seen corresponding path program 128 times [2022-11-26 00:54:12,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:54:12,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027144042] [2022-11-26 00:54:12,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:54:12,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:54:12,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:54:14,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:54:14,011 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:54:14,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027144042] [2022-11-26 00:54:14,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027144042] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:54:14,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:54:14,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:54:14,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254025652] [2022-11-26 00:54:14,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:54:14,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:54:14,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:54:14,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:54:14,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:54:14,012 INFO L87 Difference]: Start difference. First operand 1542 states and 5325 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:16,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:54:16,251 INFO L93 Difference]: Finished difference Result 2959 states and 9299 transitions. [2022-11-26 00:54:16,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:54:16,251 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:54:16,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:54:16,257 INFO L225 Difference]: With dead ends: 2959 [2022-11-26 00:54:16,257 INFO L226 Difference]: Without dead ends: 2938 [2022-11-26 00:54:16,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:54:16,257 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 228 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 1356 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 1391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:54:16,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 34 Invalid, 1391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1356 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:54:16,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2938 states. [2022-11-26 00:54:16,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2938 to 1552. [2022-11-26 00:54:16,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1552 states, 1551 states have (on average 3.4545454545454546) internal successors, (5358), 1551 states have internal predecessors, (5358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:16,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1552 states to 1552 states and 5358 transitions. [2022-11-26 00:54:16,291 INFO L78 Accepts]: Start accepts. Automaton has 1552 states and 5358 transitions. Word has length 33 [2022-11-26 00:54:16,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:54:16,291 INFO L495 AbstractCegarLoop]: Abstraction has 1552 states and 5358 transitions. [2022-11-26 00:54:16,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:16,292 INFO L276 IsEmpty]: Start isEmpty. Operand 1552 states and 5358 transitions. [2022-11-26 00:54:16,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:54:16,294 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:54:16,294 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:54:16,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-11-26 00:54:16,294 INFO L420 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:54:16,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:54:16,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1691369969, now seen corresponding path program 129 times [2022-11-26 00:54:16,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:54:16,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254779369] [2022-11-26 00:54:16,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:54:16,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:54:16,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:54:17,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:54:17,709 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:54:17,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254779369] [2022-11-26 00:54:17,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254779369] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:54:17,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:54:17,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:54:17,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86182963] [2022-11-26 00:54:17,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:54:17,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:54:17,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:54:17,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:54:17,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:54:17,711 INFO L87 Difference]: Start difference. First operand 1552 states and 5358 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:20,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:54:20,067 INFO L93 Difference]: Finished difference Result 2967 states and 9303 transitions. [2022-11-26 00:54:20,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:54:20,068 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:54:20,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:54:20,074 INFO L225 Difference]: With dead ends: 2967 [2022-11-26 00:54:20,074 INFO L226 Difference]: Without dead ends: 2956 [2022-11-26 00:54:20,074 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=158, Invalid=348, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:54:20,074 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 241 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 1463 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 1496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:54:20,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 49 Invalid, 1496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1463 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:54:20,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2956 states. [2022-11-26 00:54:20,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2956 to 1554. [2022-11-26 00:54:20,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1553 states have (on average 3.4520283322601415) internal successors, (5361), 1553 states have internal predecessors, (5361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:20,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 5361 transitions. [2022-11-26 00:54:20,108 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 5361 transitions. Word has length 33 [2022-11-26 00:54:20,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:54:20,108 INFO L495 AbstractCegarLoop]: Abstraction has 1554 states and 5361 transitions. [2022-11-26 00:54:20,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:20,108 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 5361 transitions. [2022-11-26 00:54:20,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:54:20,110 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:54:20,110 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:54:20,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-11-26 00:54:20,111 INFO L420 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:54:20,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:54:20,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1164017495, now seen corresponding path program 130 times [2022-11-26 00:54:20,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:54:20,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178145494] [2022-11-26 00:54:20,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:54:20,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:54:20,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:54:21,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:54:21,557 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:54:21,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178145494] [2022-11-26 00:54:21,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178145494] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:54:21,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:54:21,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:54:21,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040689888] [2022-11-26 00:54:21,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:54:21,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:54:21,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:54:21,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:54:21,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:54:21,559 INFO L87 Difference]: Start difference. First operand 1554 states and 5361 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:23,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:54:23,746 INFO L93 Difference]: Finished difference Result 2955 states and 9289 transitions. [2022-11-26 00:54:23,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:54:23,747 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:54:23,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:54:23,752 INFO L225 Difference]: With dead ends: 2955 [2022-11-26 00:54:23,753 INFO L226 Difference]: Without dead ends: 2936 [2022-11-26 00:54:23,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=158, Invalid=348, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:54:23,753 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 215 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1382 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 1415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:54:23,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 43 Invalid, 1415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1382 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:54:23,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2936 states. [2022-11-26 00:54:23,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2936 to 1550. [2022-11-26 00:54:23,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1550 states, 1549 states have (on average 3.4557779212395094) internal successors, (5353), 1549 states have internal predecessors, (5353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:23,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1550 states to 1550 states and 5353 transitions. [2022-11-26 00:54:23,788 INFO L78 Accepts]: Start accepts. Automaton has 1550 states and 5353 transitions. Word has length 33 [2022-11-26 00:54:23,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:54:23,788 INFO L495 AbstractCegarLoop]: Abstraction has 1550 states and 5353 transitions. [2022-11-26 00:54:23,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:23,789 INFO L276 IsEmpty]: Start isEmpty. Operand 1550 states and 5353 transitions. [2022-11-26 00:54:23,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:54:23,791 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:54:23,791 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:54:23,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-11-26 00:54:23,791 INFO L420 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:54:23,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:54:23,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1175888037, now seen corresponding path program 131 times [2022-11-26 00:54:23,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:54:23,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513966037] [2022-11-26 00:54:23,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:54:23,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:54:23,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:54:25,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:54:25,364 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:54:25,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513966037] [2022-11-26 00:54:25,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513966037] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:54:25,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:54:25,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:54:25,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802217178] [2022-11-26 00:54:25,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:54:25,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:54:25,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:54:25,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:54:25,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:54:25,366 INFO L87 Difference]: Start difference. First operand 1550 states and 5353 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:27,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:54:27,610 INFO L93 Difference]: Finished difference Result 2951 states and 9281 transitions. [2022-11-26 00:54:27,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:54:27,611 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:54:27,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:54:27,617 INFO L225 Difference]: With dead ends: 2951 [2022-11-26 00:54:27,617 INFO L226 Difference]: Without dead ends: 2938 [2022-11-26 00:54:27,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:54:27,617 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 225 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 1295 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:54:27,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 35 Invalid, 1329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1295 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:54:27,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2938 states. [2022-11-26 00:54:27,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2938 to 1552. [2022-11-26 00:54:27,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1552 states, 1551 states have (on average 3.4532559638942617) internal successors, (5356), 1551 states have internal predecessors, (5356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:27,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1552 states to 1552 states and 5356 transitions. [2022-11-26 00:54:27,681 INFO L78 Accepts]: Start accepts. Automaton has 1552 states and 5356 transitions. Word has length 33 [2022-11-26 00:54:27,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:54:27,681 INFO L495 AbstractCegarLoop]: Abstraction has 1552 states and 5356 transitions. [2022-11-26 00:54:27,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:27,682 INFO L276 IsEmpty]: Start isEmpty. Operand 1552 states and 5356 transitions. [2022-11-26 00:54:27,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:54:27,684 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:54:27,684 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:54:27,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-11-26 00:54:27,685 INFO L420 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:54:27,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:54:27,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1112440911, now seen corresponding path program 132 times [2022-11-26 00:54:27,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:54:27,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025564786] [2022-11-26 00:54:27,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:54:27,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:54:27,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:54:29,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:54:29,178 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:54:29,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025564786] [2022-11-26 00:54:29,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025564786] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:54:29,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:54:29,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:54:29,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083237898] [2022-11-26 00:54:29,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:54:29,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:54:29,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:54:29,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:54:29,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:54:29,180 INFO L87 Difference]: Start difference. First operand 1552 states and 5356 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:31,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:54:31,526 INFO L93 Difference]: Finished difference Result 2967 states and 9301 transitions. [2022-11-26 00:54:31,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:54:31,527 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:54:31,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:54:31,533 INFO L225 Difference]: With dead ends: 2967 [2022-11-26 00:54:31,534 INFO L226 Difference]: Without dead ends: 2956 [2022-11-26 00:54:31,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=158, Invalid=348, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:54:31,534 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 262 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 1363 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 1397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:54:31,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 42 Invalid, 1397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1363 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:54:31,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2956 states. [2022-11-26 00:54:31,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2956 to 1554. [2022-11-26 00:54:31,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1553 states have (on average 3.4507405022537023) internal successors, (5359), 1553 states have internal predecessors, (5359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:31,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 5359 transitions. [2022-11-26 00:54:31,572 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 5359 transitions. Word has length 33 [2022-11-26 00:54:31,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:54:31,573 INFO L495 AbstractCegarLoop]: Abstraction has 1554 states and 5359 transitions. [2022-11-26 00:54:31,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:31,573 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 5359 transitions. [2022-11-26 00:54:31,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:54:31,576 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:54:31,576 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:54:31,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-11-26 00:54:31,576 INFO L420 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:54:31,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:54:31,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1639793385, now seen corresponding path program 133 times [2022-11-26 00:54:31,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:54:31,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799089327] [2022-11-26 00:54:31,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:54:31,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:54:31,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:54:33,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:54:33,179 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:54:33,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799089327] [2022-11-26 00:54:33,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799089327] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:54:33,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:54:33,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:54:33,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441233768] [2022-11-26 00:54:33,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:54:33,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:54:33,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:54:33,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:54:33,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:54:33,181 INFO L87 Difference]: Start difference. First operand 1554 states and 5359 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:35,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:54:35,600 INFO L93 Difference]: Finished difference Result 2955 states and 9287 transitions. [2022-11-26 00:54:35,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:54:35,600 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:54:35,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:54:35,606 INFO L225 Difference]: With dead ends: 2955 [2022-11-26 00:54:35,606 INFO L226 Difference]: Without dead ends: 2934 [2022-11-26 00:54:35,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=158, Invalid=348, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:54:35,606 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 226 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 1353 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 1387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:54:35,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 41 Invalid, 1387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1353 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:54:35,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2934 states. [2022-11-26 00:54:35,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2934 to 1548. [2022-11-26 00:54:35,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1548 states, 1547 states have (on average 3.4570135746606336) internal successors, (5348), 1547 states have internal predecessors, (5348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:35,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1548 states to 1548 states and 5348 transitions. [2022-11-26 00:54:35,641 INFO L78 Accepts]: Start accepts. Automaton has 1548 states and 5348 transitions. Word has length 33 [2022-11-26 00:54:35,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:54:35,641 INFO L495 AbstractCegarLoop]: Abstraction has 1548 states and 5348 transitions. [2022-11-26 00:54:35,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:35,642 INFO L276 IsEmpty]: Start isEmpty. Operand 1548 states and 5348 transitions. [2022-11-26 00:54:35,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:54:35,644 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:54:35,644 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:54:35,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2022-11-26 00:54:35,644 INFO L420 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:54:35,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:54:35,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1375162909, now seen corresponding path program 134 times [2022-11-26 00:54:35,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:54:35,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354233031] [2022-11-26 00:54:35,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:54:35,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:54:35,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:54:36,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:54:36,959 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:54:36,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354233031] [2022-11-26 00:54:36,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354233031] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:54:36,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:54:36,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:54:36,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851484100] [2022-11-26 00:54:36,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:54:36,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:54:36,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:54:36,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:54:36,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:54:36,960 INFO L87 Difference]: Start difference. First operand 1548 states and 5348 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:39,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:54:39,089 INFO L93 Difference]: Finished difference Result 3021 states and 9423 transitions. [2022-11-26 00:54:39,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:54:39,089 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:54:39,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:54:39,095 INFO L225 Difference]: With dead ends: 3021 [2022-11-26 00:54:39,095 INFO L226 Difference]: Without dead ends: 3000 [2022-11-26 00:54:39,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:54:39,096 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 254 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 1395 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 1432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:54:39,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 45 Invalid, 1432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1395 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:54:39,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3000 states. [2022-11-26 00:54:39,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3000 to 1552. [2022-11-26 00:54:39,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1552 states, 1551 states have (on average 3.4545454545454546) internal successors, (5358), 1551 states have internal predecessors, (5358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:39,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1552 states to 1552 states and 5358 transitions. [2022-11-26 00:54:39,131 INFO L78 Accepts]: Start accepts. Automaton has 1552 states and 5358 transitions. Word has length 33 [2022-11-26 00:54:39,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:54:39,131 INFO L495 AbstractCegarLoop]: Abstraction has 1552 states and 5358 transitions. [2022-11-26 00:54:39,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:39,131 INFO L276 IsEmpty]: Start isEmpty. Operand 1552 states and 5358 transitions. [2022-11-26 00:54:39,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:54:39,133 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:54:39,134 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:54:39,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2022-11-26 00:54:39,134 INFO L420 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:54:39,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:54:39,134 INFO L85 PathProgramCache]: Analyzing trace with hash -734301751, now seen corresponding path program 135 times [2022-11-26 00:54:39,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:54:39,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271358940] [2022-11-26 00:54:39,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:54:39,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:54:39,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:54:40,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:54:40,471 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:54:40,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271358940] [2022-11-26 00:54:40,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271358940] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:54:40,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:54:40,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:54:40,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235794693] [2022-11-26 00:54:40,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:54:40,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:54:40,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:54:40,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:54:40,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:54:40,473 INFO L87 Difference]: Start difference. First operand 1552 states and 5358 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:42,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:54:42,717 INFO L93 Difference]: Finished difference Result 3013 states and 9407 transitions. [2022-11-26 00:54:42,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:54:42,717 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:54:42,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:54:42,722 INFO L225 Difference]: With dead ends: 3013 [2022-11-26 00:54:42,723 INFO L226 Difference]: Without dead ends: 3002 [2022-11-26 00:54:42,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:54:42,723 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 247 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 1398 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 1434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:54:42,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 53 Invalid, 1434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1398 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:54:42,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3002 states. [2022-11-26 00:54:42,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3002 to 1554. [2022-11-26 00:54:42,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1553 states have (on average 3.4520283322601415) internal successors, (5361), 1553 states have internal predecessors, (5361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:42,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 5361 transitions. [2022-11-26 00:54:42,758 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 5361 transitions. Word has length 33 [2022-11-26 00:54:42,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:54:42,758 INFO L495 AbstractCegarLoop]: Abstraction has 1554 states and 5361 transitions. [2022-11-26 00:54:42,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:42,758 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 5361 transitions. [2022-11-26 00:54:42,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:54:42,761 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:54:42,761 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:54:42,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2022-11-26 00:54:42,761 INFO L420 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:54:42,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:54:42,762 INFO L85 PathProgramCache]: Analyzing trace with hash -206949277, now seen corresponding path program 136 times [2022-11-26 00:54:42,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:54:42,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039678954] [2022-11-26 00:54:42,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:54:42,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:54:42,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:54:44,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:54:44,124 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:54:44,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039678954] [2022-11-26 00:54:44,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039678954] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:54:44,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:54:44,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:54:44,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687312915] [2022-11-26 00:54:44,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:54:44,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:54:44,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:54:44,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:54:44,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:54:44,126 INFO L87 Difference]: Start difference. First operand 1554 states and 5361 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:46,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:54:46,458 INFO L93 Difference]: Finished difference Result 3017 states and 9413 transitions. [2022-11-26 00:54:46,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:54:46,459 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:54:46,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:54:46,465 INFO L225 Difference]: With dead ends: 3017 [2022-11-26 00:54:46,465 INFO L226 Difference]: Without dead ends: 2998 [2022-11-26 00:54:46,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:54:46,466 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 277 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 1312 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 1347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:54:46,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 46 Invalid, 1347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1312 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:54:46,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2998 states. [2022-11-26 00:54:46,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2998 to 1550. [2022-11-26 00:54:46,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1550 states, 1549 states have (on average 3.4557779212395094) internal successors, (5353), 1549 states have internal predecessors, (5353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:46,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1550 states to 1550 states and 5353 transitions. [2022-11-26 00:54:46,501 INFO L78 Accepts]: Start accepts. Automaton has 1550 states and 5353 transitions. Word has length 33 [2022-11-26 00:54:46,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:54:46,501 INFO L495 AbstractCegarLoop]: Abstraction has 1550 states and 5353 transitions. [2022-11-26 00:54:46,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:46,501 INFO L276 IsEmpty]: Start isEmpty. Operand 1550 states and 5353 transitions. [2022-11-26 00:54:46,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:54:46,505 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:54:46,506 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:54:46,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-11-26 00:54:46,506 INFO L420 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:54:46,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:54:46,506 INFO L85 PathProgramCache]: Analyzing trace with hash -877485793, now seen corresponding path program 137 times [2022-11-26 00:54:46,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:54:46,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567914293] [2022-11-26 00:54:46,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:54:46,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:54:46,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:54:47,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:54:47,910 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:54:47,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567914293] [2022-11-26 00:54:47,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567914293] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:54:47,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:54:47,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:54:47,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403064298] [2022-11-26 00:54:47,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:54:47,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:54:47,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:54:47,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:54:47,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:54:47,911 INFO L87 Difference]: Start difference. First operand 1550 states and 5353 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:50,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:54:50,083 INFO L93 Difference]: Finished difference Result 2993 states and 9377 transitions. [2022-11-26 00:54:50,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:54:50,084 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:54:50,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:54:50,091 INFO L225 Difference]: With dead ends: 2993 [2022-11-26 00:54:50,091 INFO L226 Difference]: Without dead ends: 2972 [2022-11-26 00:54:50,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=161, Invalid=345, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:54:50,091 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 211 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 1350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:54:50,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 36 Invalid, 1350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1313 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:54:50,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2972 states. [2022-11-26 00:54:50,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2972 to 1556. [2022-11-26 00:54:50,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1556 states, 1555 states have (on average 3.44951768488746) internal successors, (5364), 1555 states have internal predecessors, (5364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:50,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 5364 transitions. [2022-11-26 00:54:50,132 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 5364 transitions. Word has length 33 [2022-11-26 00:54:50,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:54:50,133 INFO L495 AbstractCegarLoop]: Abstraction has 1556 states and 5364 transitions. [2022-11-26 00:54:50,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:50,133 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 5364 transitions. [2022-11-26 00:54:50,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:54:50,136 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:54:50,136 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:54:50,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-11-26 00:54:50,136 INFO L420 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:54:50,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:54:50,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1438168765, now seen corresponding path program 138 times [2022-11-26 00:54:50,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:54:50,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806638712] [2022-11-26 00:54:50,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:54:50,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:54:50,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:54:51,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:54:51,346 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:54:51,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806638712] [2022-11-26 00:54:51,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806638712] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:54:51,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:54:51,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:54:51,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356369041] [2022-11-26 00:54:51,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:54:51,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:54:51,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:54:51,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:54:51,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:54:51,347 INFO L87 Difference]: Start difference. First operand 1556 states and 5364 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:53,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:54:53,954 INFO L93 Difference]: Finished difference Result 3020 states and 9419 transitions. [2022-11-26 00:54:53,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-26 00:54:53,955 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:54:53,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:54:53,961 INFO L225 Difference]: With dead ends: 3020 [2022-11-26 00:54:53,961 INFO L226 Difference]: Without dead ends: 2970 [2022-11-26 00:54:53,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=204, Invalid=396, Unknown=0, NotChecked=0, Total=600 [2022-11-26 00:54:53,962 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 214 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 1460 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 1499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:54:53,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 41 Invalid, 1499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1460 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-26 00:54:53,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2970 states. [2022-11-26 00:54:53,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2970 to 1590. [2022-11-26 00:54:53,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1590 states, 1589 states have (on average 3.4304594084329767) internal successors, (5451), 1589 states have internal predecessors, (5451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:53,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1590 states to 1590 states and 5451 transitions. [2022-11-26 00:54:53,998 INFO L78 Accepts]: Start accepts. Automaton has 1590 states and 5451 transitions. Word has length 33 [2022-11-26 00:54:53,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:54:53,998 INFO L495 AbstractCegarLoop]: Abstraction has 1590 states and 5451 transitions. [2022-11-26 00:54:53,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:53,998 INFO L276 IsEmpty]: Start isEmpty. Operand 1590 states and 5451 transitions. [2022-11-26 00:54:54,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:54:54,001 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:54:54,001 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:54:54,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-11-26 00:54:54,001 INFO L420 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:54:54,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:54:54,001 INFO L85 PathProgramCache]: Analyzing trace with hash -527560033, now seen corresponding path program 139 times [2022-11-26 00:54:54,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:54:54,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326049271] [2022-11-26 00:54:54,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:54:54,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:54:54,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:54:55,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:54:55,369 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:54:55,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326049271] [2022-11-26 00:54:55,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326049271] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:54:55,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:54:55,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:54:55,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334331372] [2022-11-26 00:54:55,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:54:55,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:54:55,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:54:55,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:54:55,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:54:55,371 INFO L87 Difference]: Start difference. First operand 1590 states and 5451 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:57,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:54:57,447 INFO L93 Difference]: Finished difference Result 2985 states and 9354 transitions. [2022-11-26 00:54:57,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:54:57,448 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:54:57,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:54:57,454 INFO L225 Difference]: With dead ends: 2985 [2022-11-26 00:54:57,455 INFO L226 Difference]: Without dead ends: 2958 [2022-11-26 00:54:57,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:54:57,455 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 202 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 1391 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 1426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:54:57,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 39 Invalid, 1426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1391 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:54:57,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2958 states. [2022-11-26 00:54:57,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2958 to 1578. [2022-11-26 00:54:57,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 3.4413443246670896) internal successors, (5427), 1577 states have internal predecessors, (5427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:57,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 5427 transitions. [2022-11-26 00:54:57,497 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 5427 transitions. Word has length 33 [2022-11-26 00:54:57,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:54:57,497 INFO L495 AbstractCegarLoop]: Abstraction has 1578 states and 5427 transitions. [2022-11-26 00:54:57,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:54:57,497 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 5427 transitions. [2022-11-26 00:54:57,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:54:57,500 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:54:57,500 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:54:57,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2022-11-26 00:54:57,501 INFO L420 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:54:57,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:54:57,501 INFO L85 PathProgramCache]: Analyzing trace with hash -2096950747, now seen corresponding path program 140 times [2022-11-26 00:54:57,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:54:57,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606378103] [2022-11-26 00:54:57,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:54:57,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:54:57,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:54:58,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:54:58,877 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:54:58,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606378103] [2022-11-26 00:54:58,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606378103] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:54:58,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:54:58,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:54:58,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230920869] [2022-11-26 00:54:58,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:54:58,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:54:58,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:54:58,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:54:58,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:54:58,878 INFO L87 Difference]: Start difference. First operand 1578 states and 5427 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:01,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:55:01,724 INFO L93 Difference]: Finished difference Result 3042 states and 9443 transitions. [2022-11-26 00:55:01,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-26 00:55:01,725 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:55:01,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:55:01,732 INFO L225 Difference]: With dead ends: 3042 [2022-11-26 00:55:01,732 INFO L226 Difference]: Without dead ends: 3020 [2022-11-26 00:55:01,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=221, Invalid=429, Unknown=0, NotChecked=0, Total=650 [2022-11-26 00:55:01,733 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 248 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1483 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 1518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:55:01,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 51 Invalid, 1518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1483 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-26 00:55:01,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3020 states. [2022-11-26 00:55:01,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3020 to 1584. [2022-11-26 00:55:01,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1584 states, 1583 states have (on average 3.437776373973468) internal successors, (5442), 1583 states have internal predecessors, (5442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:01,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 5442 transitions. [2022-11-26 00:55:01,775 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 5442 transitions. Word has length 33 [2022-11-26 00:55:01,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:55:01,775 INFO L495 AbstractCegarLoop]: Abstraction has 1584 states and 5442 transitions. [2022-11-26 00:55:01,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:01,775 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 5442 transitions. [2022-11-26 00:55:01,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:55:01,778 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:55:01,778 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:55:01,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2022-11-26 00:55:01,778 INFO L420 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:55:01,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:55:01,779 INFO L85 PathProgramCache]: Analyzing trace with hash -491261341, now seen corresponding path program 141 times [2022-11-26 00:55:01,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:55:01,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784821386] [2022-11-26 00:55:01,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:55:01,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:55:01,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:55:03,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:55:03,168 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:55:03,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784821386] [2022-11-26 00:55:03,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784821386] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:55:03,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:55:03,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:55:03,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114567534] [2022-11-26 00:55:03,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:55:03,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:55:03,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:55:03,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:55:03,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:55:03,170 INFO L87 Difference]: Start difference. First operand 1584 states and 5442 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:05,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:55:05,667 INFO L93 Difference]: Finished difference Result 3036 states and 9439 transitions. [2022-11-26 00:55:05,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-26 00:55:05,667 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:55:05,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:55:05,673 INFO L225 Difference]: With dead ends: 3036 [2022-11-26 00:55:05,674 INFO L226 Difference]: Without dead ends: 2986 [2022-11-26 00:55:05,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=222, Invalid=428, Unknown=0, NotChecked=0, Total=650 [2022-11-26 00:55:05,674 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 268 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1341 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 1378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:55:05,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 43 Invalid, 1378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1341 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:55:05,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2986 states. [2022-11-26 00:55:05,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2986 to 1578. [2022-11-26 00:55:05,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 3.4413443246670896) internal successors, (5427), 1577 states have internal predecessors, (5427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:05,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 5427 transitions. [2022-11-26 00:55:05,710 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 5427 transitions. Word has length 33 [2022-11-26 00:55:05,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:55:05,710 INFO L495 AbstractCegarLoop]: Abstraction has 1578 states and 5427 transitions. [2022-11-26 00:55:05,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:05,710 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 5427 transitions. [2022-11-26 00:55:05,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:55:05,713 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:55:05,713 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:55:05,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2022-11-26 00:55:05,713 INFO L420 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:55:05,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:55:05,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1165657271, now seen corresponding path program 142 times [2022-11-26 00:55:05,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:55:05,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727989641] [2022-11-26 00:55:05,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:55:05,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:55:05,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:55:06,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:55:06,955 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:55:06,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727989641] [2022-11-26 00:55:06,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727989641] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:55:06,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:55:06,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:55:06,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497107654] [2022-11-26 00:55:06,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:55:06,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:55:06,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:55:06,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:55:06,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:55:06,956 INFO L87 Difference]: Start difference. First operand 1578 states and 5427 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:09,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:55:09,144 INFO L93 Difference]: Finished difference Result 3015 states and 9396 transitions. [2022-11-26 00:55:09,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:55:09,145 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:55:09,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:55:09,151 INFO L225 Difference]: With dead ends: 3015 [2022-11-26 00:55:09,151 INFO L226 Difference]: Without dead ends: 3004 [2022-11-26 00:55:09,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=160, Invalid=346, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:55:09,152 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 278 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 1304 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 1336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:55:09,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 47 Invalid, 1336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1304 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:55:09,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3004 states. [2022-11-26 00:55:09,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3004 to 1580. [2022-11-26 00:55:09,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 3.4388853704876503) internal successors, (5430), 1579 states have internal predecessors, (5430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:09,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 5430 transitions. [2022-11-26 00:55:09,192 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 5430 transitions. Word has length 33 [2022-11-26 00:55:09,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:55:09,192 INFO L495 AbstractCegarLoop]: Abstraction has 1580 states and 5430 transitions. [2022-11-26 00:55:09,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:09,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 5430 transitions. [2022-11-26 00:55:09,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:55:09,195 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:55:09,195 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:55:09,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2022-11-26 00:55:09,195 INFO L420 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:55:09,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:55:09,196 INFO L85 PathProgramCache]: Analyzing trace with hash -638304797, now seen corresponding path program 143 times [2022-11-26 00:55:09,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:55:09,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497182838] [2022-11-26 00:55:09,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:55:09,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:55:09,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:55:10,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:55:10,568 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:55:10,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497182838] [2022-11-26 00:55:10,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497182838] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:55:10,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:55:10,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:55:10,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713150678] [2022-11-26 00:55:10,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:55:10,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:55:10,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:55:10,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:55:10,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:55:10,569 INFO L87 Difference]: Start difference. First operand 1580 states and 5430 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:12,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:55:12,688 INFO L93 Difference]: Finished difference Result 3009 states and 9393 transitions. [2022-11-26 00:55:12,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:55:12,689 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:55:12,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:55:12,694 INFO L225 Difference]: With dead ends: 3009 [2022-11-26 00:55:12,694 INFO L226 Difference]: Without dead ends: 2992 [2022-11-26 00:55:12,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=160, Invalid=346, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:55:12,694 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 219 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 1427 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 1459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:55:12,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 54 Invalid, 1459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1427 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:55:12,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2992 states. [2022-11-26 00:55:12,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2992 to 1578. [2022-11-26 00:55:12,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 3.4400760938490804) internal successors, (5425), 1577 states have internal predecessors, (5425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:12,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 5425 transitions. [2022-11-26 00:55:12,724 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 5425 transitions. Word has length 33 [2022-11-26 00:55:12,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:55:12,724 INFO L495 AbstractCegarLoop]: Abstraction has 1578 states and 5425 transitions. [2022-11-26 00:55:12,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:12,724 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 5425 transitions. [2022-11-26 00:55:12,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:55:12,740 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:55:12,740 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:55:12,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2022-11-26 00:55:12,741 INFO L420 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:55:12,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:55:12,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1323203831, now seen corresponding path program 144 times [2022-11-26 00:55:12,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:55:12,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010071504] [2022-11-26 00:55:12,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:55:12,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:55:12,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:55:13,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:55:13,797 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:55:13,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010071504] [2022-11-26 00:55:13,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010071504] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:55:13,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:55:13,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:55:13,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725575719] [2022-11-26 00:55:13,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:55:13,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:55:13,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:55:13,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:55:13,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:55:13,798 INFO L87 Difference]: Start difference. First operand 1578 states and 5425 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:15,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:55:15,777 INFO L93 Difference]: Finished difference Result 3011 states and 9386 transitions. [2022-11-26 00:55:15,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:55:15,777 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:55:15,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:55:15,783 INFO L225 Difference]: With dead ends: 3011 [2022-11-26 00:55:15,783 INFO L226 Difference]: Without dead ends: 2994 [2022-11-26 00:55:15,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:55:15,783 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 233 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 1318 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 1350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:55:15,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 38 Invalid, 1350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1318 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:55:15,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2994 states. [2022-11-26 00:55:15,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2994 to 1584. [2022-11-26 00:55:15,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1584 states, 1583 states have (on average 3.433986102337334) internal successors, (5436), 1583 states have internal predecessors, (5436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:15,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 5436 transitions. [2022-11-26 00:55:15,837 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 5436 transitions. Word has length 33 [2022-11-26 00:55:15,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:55:15,837 INFO L495 AbstractCegarLoop]: Abstraction has 1584 states and 5436 transitions. [2022-11-26 00:55:15,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:15,837 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 5436 transitions. [2022-11-26 00:55:15,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:55:15,839 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:55:15,839 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:55:15,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2022-11-26 00:55:15,840 INFO L420 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:55:15,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:55:15,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1893426533, now seen corresponding path program 145 times [2022-11-26 00:55:15,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:55:15,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311145524] [2022-11-26 00:55:15,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:55:15,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:55:15,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:55:17,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:55:17,102 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:55:17,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311145524] [2022-11-26 00:55:17,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311145524] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:55:17,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:55:17,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:55:17,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178680974] [2022-11-26 00:55:17,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:55:17,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:55:17,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:55:17,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:55:17,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:55:17,104 INFO L87 Difference]: Start difference. First operand 1584 states and 5436 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:19,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:55:19,227 INFO L93 Difference]: Finished difference Result 2999 states and 9367 transitions. [2022-11-26 00:55:19,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:55:19,227 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:55:19,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:55:19,232 INFO L225 Difference]: With dead ends: 2999 [2022-11-26 00:55:19,232 INFO L226 Difference]: Without dead ends: 2974 [2022-11-26 00:55:19,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=161, Invalid=345, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:55:19,233 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 206 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 1463 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 1495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:55:19,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 47 Invalid, 1495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1463 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:55:19,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2974 states. [2022-11-26 00:55:19,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2974 to 1574. [2022-11-26 00:55:19,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 3.4437380801017166) internal successors, (5417), 1573 states have internal predecessors, (5417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:19,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 5417 transitions. [2022-11-26 00:55:19,263 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 5417 transitions. Word has length 33 [2022-11-26 00:55:19,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:55:19,263 INFO L495 AbstractCegarLoop]: Abstraction has 1574 states and 5417 transitions. [2022-11-26 00:55:19,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:19,264 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 5417 transitions. [2022-11-26 00:55:19,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:55:19,266 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:55:19,266 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:55:19,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2022-11-26 00:55:19,266 INFO L420 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:55:19,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:55:19,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1883442121, now seen corresponding path program 146 times [2022-11-26 00:55:19,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:55:19,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374820211] [2022-11-26 00:55:19,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:55:19,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:55:19,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:55:20,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:55:20,516 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:55:20,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374820211] [2022-11-26 00:55:20,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374820211] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:55:20,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:55:20,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:55:20,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654969579] [2022-11-26 00:55:20,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:55:20,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:55:20,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:55:20,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:55:20,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:55:20,518 INFO L87 Difference]: Start difference. First operand 1574 states and 5417 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:23,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:55:23,160 INFO L93 Difference]: Finished difference Result 3002 states and 9367 transitions. [2022-11-26 00:55:23,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-26 00:55:23,160 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:55:23,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:55:23,167 INFO L225 Difference]: With dead ends: 3002 [2022-11-26 00:55:23,167 INFO L226 Difference]: Without dead ends: 2976 [2022-11-26 00:55:23,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=239, Invalid=463, Unknown=0, NotChecked=0, Total=702 [2022-11-26 00:55:23,167 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 250 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 1329 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 1366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:55:23,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 35 Invalid, 1366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1329 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:55:23,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2976 states. [2022-11-26 00:55:23,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2976 to 1580. [2022-11-26 00:55:23,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 3.4401519949335024) internal successors, (5432), 1579 states have internal predecessors, (5432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:23,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 5432 transitions. [2022-11-26 00:55:23,208 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 5432 transitions. Word has length 33 [2022-11-26 00:55:23,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:55:23,209 INFO L495 AbstractCegarLoop]: Abstraction has 1580 states and 5432 transitions. [2022-11-26 00:55:23,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:23,209 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 5432 transitions. [2022-11-26 00:55:23,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:55:23,212 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:55:23,212 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:55:23,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2022-11-26 00:55:23,212 INFO L420 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:55:23,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:55:23,213 INFO L85 PathProgramCache]: Analyzing trace with hash 888701519, now seen corresponding path program 147 times [2022-11-26 00:55:23,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:55:23,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784484605] [2022-11-26 00:55:23,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:55:23,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:55:23,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:55:24,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:55:24,698 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:55:24,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784484605] [2022-11-26 00:55:24,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784484605] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:55:24,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:55:24,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:55:24,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323497858] [2022-11-26 00:55:24,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:55:24,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:55:24,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:55:24,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:55:24,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:55:24,700 INFO L87 Difference]: Start difference. First operand 1580 states and 5432 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:27,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:55:27,674 INFO L93 Difference]: Finished difference Result 3048 states and 9435 transitions. [2022-11-26 00:55:27,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-26 00:55:27,675 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:55:27,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:55:27,681 INFO L225 Difference]: With dead ends: 3048 [2022-11-26 00:55:27,681 INFO L226 Difference]: Without dead ends: 3026 [2022-11-26 00:55:27,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=240, Invalid=462, Unknown=0, NotChecked=0, Total=702 [2022-11-26 00:55:27,681 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 249 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 1457 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 1492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:55:27,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 40 Invalid, 1492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1457 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-26 00:55:27,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3026 states. [2022-11-26 00:55:27,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3026 to 1584. [2022-11-26 00:55:27,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1584 states, 1583 states have (on average 3.4365129500947567) internal successors, (5440), 1583 states have internal predecessors, (5440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:27,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 5440 transitions. [2022-11-26 00:55:27,720 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 5440 transitions. Word has length 33 [2022-11-26 00:55:27,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:55:27,720 INFO L495 AbstractCegarLoop]: Abstraction has 1584 states and 5440 transitions. [2022-11-26 00:55:27,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:27,721 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 5440 transitions. [2022-11-26 00:55:27,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:55:27,723 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:55:27,723 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:55:27,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2022-11-26 00:55:27,723 INFO L420 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:55:27,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:55:27,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1800576371, now seen corresponding path program 148 times [2022-11-26 00:55:27,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:55:27,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472576408] [2022-11-26 00:55:27,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:55:27,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:55:27,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:55:29,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:55:29,290 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:55:29,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472576408] [2022-11-26 00:55:29,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472576408] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:55:29,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:55:29,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:55:29,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504763816] [2022-11-26 00:55:29,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:55:29,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:55:29,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:55:29,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:55:29,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:55:29,292 INFO L87 Difference]: Start difference. First operand 1584 states and 5440 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:31,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:55:31,981 INFO L93 Difference]: Finished difference Result 3024 states and 9407 transitions. [2022-11-26 00:55:31,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-26 00:55:31,982 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:55:31,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:55:31,988 INFO L225 Difference]: With dead ends: 3024 [2022-11-26 00:55:31,988 INFO L226 Difference]: Without dead ends: 2968 [2022-11-26 00:55:31,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=241, Invalid=461, Unknown=0, NotChecked=0, Total=702 [2022-11-26 00:55:31,988 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 219 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 1398 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 1435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:55:31,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 41 Invalid, 1435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1398 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:55:31,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2968 states. [2022-11-26 00:55:32,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2968 to 1574. [2022-11-26 00:55:32,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 3.4437380801017166) internal successors, (5417), 1573 states have internal predecessors, (5417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:32,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 5417 transitions. [2022-11-26 00:55:32,025 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 5417 transitions. Word has length 33 [2022-11-26 00:55:32,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:55:32,026 INFO L495 AbstractCegarLoop]: Abstraction has 1574 states and 5417 transitions. [2022-11-26 00:55:32,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:32,026 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 5417 transitions. [2022-11-26 00:55:32,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:55:32,029 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:55:32,029 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:55:32,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2022-11-26 00:55:32,030 INFO L420 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:55:32,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:55:32,030 INFO L85 PathProgramCache]: Analyzing trace with hash 688768805, now seen corresponding path program 149 times [2022-11-26 00:55:32,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:55:32,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817862882] [2022-11-26 00:55:32,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:55:32,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:55:32,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:55:33,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:55:33,481 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:55:33,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817862882] [2022-11-26 00:55:33,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817862882] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:55:33,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:55:33,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:55:33,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088722763] [2022-11-26 00:55:33,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:55:33,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:55:33,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:55:33,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:55:33,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:55:33,483 INFO L87 Difference]: Start difference. First operand 1574 states and 5417 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:35,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:55:35,827 INFO L93 Difference]: Finished difference Result 2971 states and 9312 transitions. [2022-11-26 00:55:35,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:55:35,827 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:55:35,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:55:35,833 INFO L225 Difference]: With dead ends: 2971 [2022-11-26 00:55:35,833 INFO L226 Difference]: Without dead ends: 2958 [2022-11-26 00:55:35,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:55:35,834 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 233 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 1437 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 1471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:55:35,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 38 Invalid, 1471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1437 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-26 00:55:35,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2958 states. [2022-11-26 00:55:35,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2958 to 1576. [2022-11-26 00:55:35,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 3.4412698412698415) internal successors, (5420), 1575 states have internal predecessors, (5420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:35,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 5420 transitions. [2022-11-26 00:55:35,881 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 5420 transitions. Word has length 33 [2022-11-26 00:55:35,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:55:35,881 INFO L495 AbstractCegarLoop]: Abstraction has 1576 states and 5420 transitions. [2022-11-26 00:55:35,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:35,881 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 5420 transitions. [2022-11-26 00:55:35,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:55:35,885 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:55:35,886 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:55:35,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2022-11-26 00:55:35,886 INFO L420 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:55:35,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:55:35,886 INFO L85 PathProgramCache]: Analyzing trace with hash 625321679, now seen corresponding path program 150 times [2022-11-26 00:55:35,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:55:35,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284874140] [2022-11-26 00:55:35,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:55:35,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:55:35,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:55:37,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:55:37,356 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:55:37,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284874140] [2022-11-26 00:55:37,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284874140] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:55:37,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:55:37,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:55:37,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754955049] [2022-11-26 00:55:37,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:55:37,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:55:37,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:55:37,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:55:37,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:55:37,358 INFO L87 Difference]: Start difference. First operand 1576 states and 5420 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:39,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:55:39,787 INFO L93 Difference]: Finished difference Result 2975 states and 9320 transitions. [2022-11-26 00:55:39,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:55:39,788 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:55:39,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:55:39,794 INFO L225 Difference]: With dead ends: 2975 [2022-11-26 00:55:39,794 INFO L226 Difference]: Without dead ends: 2964 [2022-11-26 00:55:39,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:55:39,794 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 232 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1432 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 1464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:55:39,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 44 Invalid, 1464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1432 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-26 00:55:39,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2964 states. [2022-11-26 00:55:39,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2964 to 1578. [2022-11-26 00:55:39,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 3.4388078630310717) internal successors, (5423), 1577 states have internal predecessors, (5423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:39,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 5423 transitions. [2022-11-26 00:55:39,835 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 5423 transitions. Word has length 33 [2022-11-26 00:55:39,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:55:39,836 INFO L495 AbstractCegarLoop]: Abstraction has 1578 states and 5423 transitions. [2022-11-26 00:55:39,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:39,836 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 5423 transitions. [2022-11-26 00:55:39,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:55:39,839 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:55:39,839 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:55:39,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2022-11-26 00:55:39,839 INFO L420 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:55:39,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:55:39,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1152674153, now seen corresponding path program 151 times [2022-11-26 00:55:39,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:55:39,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855514516] [2022-11-26 00:55:39,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:55:39,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:55:39,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:55:41,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:55:41,299 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:55:41,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855514516] [2022-11-26 00:55:41,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855514516] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:55:41,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:55:41,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:55:41,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474756766] [2022-11-26 00:55:41,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:55:41,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:55:41,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:55:41,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:55:41,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:55:41,300 INFO L87 Difference]: Start difference. First operand 1578 states and 5423 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:43,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:55:43,780 INFO L93 Difference]: Finished difference Result 2963 states and 9306 transitions. [2022-11-26 00:55:43,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:55:43,781 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:55:43,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:55:43,788 INFO L225 Difference]: With dead ends: 2963 [2022-11-26 00:55:43,788 INFO L226 Difference]: Without dead ends: 2944 [2022-11-26 00:55:43,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:55:43,788 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 205 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 1430 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 1462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:55:43,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 42 Invalid, 1462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1430 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-26 00:55:43,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2944 states. [2022-11-26 00:55:43,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2944 to 1574. [2022-11-26 00:55:43,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 3.442466624284806) internal successors, (5415), 1573 states have internal predecessors, (5415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:43,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 5415 transitions. [2022-11-26 00:55:43,828 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 5415 transitions. Word has length 33 [2022-11-26 00:55:43,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:55:43,829 INFO L495 AbstractCegarLoop]: Abstraction has 1574 states and 5415 transitions. [2022-11-26 00:55:43,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:43,829 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 5415 transitions. [2022-11-26 00:55:43,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:55:43,832 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:55:43,832 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:55:43,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2022-11-26 00:55:43,832 INFO L420 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:55:43,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:55:43,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1078159387, now seen corresponding path program 152 times [2022-11-26 00:55:43,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:55:43,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948545204] [2022-11-26 00:55:43,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:55:43,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:55:43,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:55:45,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:55:45,277 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:55:45,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948545204] [2022-11-26 00:55:45,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948545204] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:55:45,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:55:45,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:55:45,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576529614] [2022-11-26 00:55:45,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:55:45,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:55:45,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:55:45,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:55:45,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:55:45,278 INFO L87 Difference]: Start difference. First operand 1574 states and 5415 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:47,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:55:47,826 INFO L93 Difference]: Finished difference Result 2995 states and 9355 transitions. [2022-11-26 00:55:47,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:55:47,827 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:55:47,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:55:47,833 INFO L225 Difference]: With dead ends: 2995 [2022-11-26 00:55:47,833 INFO L226 Difference]: Without dead ends: 2984 [2022-11-26 00:55:47,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=161, Invalid=345, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:55:47,834 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 250 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 1318 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 1350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:55:47,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 42 Invalid, 1350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1318 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-26 00:55:47,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2984 states. [2022-11-26 00:55:47,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2984 to 1578. [2022-11-26 00:55:47,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 3.4400760938490804) internal successors, (5425), 1577 states have internal predecessors, (5425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:47,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 5425 transitions. [2022-11-26 00:55:47,874 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 5425 transitions. Word has length 33 [2022-11-26 00:55:47,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:55:47,875 INFO L495 AbstractCegarLoop]: Abstraction has 1578 states and 5425 transitions. [2022-11-26 00:55:47,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:47,875 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 5425 transitions. [2022-11-26 00:55:47,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:55:47,878 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:55:47,878 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:55:47,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2022-11-26 00:55:47,878 INFO L420 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:55:47,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:55:47,878 INFO L85 PathProgramCache]: Analyzing trace with hash 527530019, now seen corresponding path program 153 times [2022-11-26 00:55:47,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:55:47,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357958387] [2022-11-26 00:55:47,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:55:47,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:55:47,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:55:49,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:55:49,523 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:55:49,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357958387] [2022-11-26 00:55:49,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357958387] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:55:49,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:55:49,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:55:49,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522531046] [2022-11-26 00:55:49,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:55:49,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:55:49,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:55:49,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:55:49,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:55:49,524 INFO L87 Difference]: Start difference. First operand 1578 states and 5425 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:51,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:55:51,793 INFO L93 Difference]: Finished difference Result 3001 states and 9365 transitions. [2022-11-26 00:55:51,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:55:51,794 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:55:51,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:55:51,799 INFO L225 Difference]: With dead ends: 3001 [2022-11-26 00:55:51,799 INFO L226 Difference]: Without dead ends: 2982 [2022-11-26 00:55:51,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:55:51,800 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 233 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 1403 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 1434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:55:51,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 40 Invalid, 1434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1403 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:55:51,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2982 states. [2022-11-26 00:55:51,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2982 to 1576. [2022-11-26 00:55:51,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 3.4412698412698415) internal successors, (5420), 1575 states have internal predecessors, (5420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:51,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 5420 transitions. [2022-11-26 00:55:51,829 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 5420 transitions. Word has length 33 [2022-11-26 00:55:51,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:55:51,829 INFO L495 AbstractCegarLoop]: Abstraction has 1576 states and 5420 transitions. [2022-11-26 00:55:51,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:51,829 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 5420 transitions. [2022-11-26 00:55:51,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:55:51,831 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:55:51,832 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:55:51,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2022-11-26 00:55:51,832 INFO L420 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:55:51,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:55:51,832 INFO L85 PathProgramCache]: Analyzing trace with hash -146865911, now seen corresponding path program 154 times [2022-11-26 00:55:51,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:55:51,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233220175] [2022-11-26 00:55:51,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:55:51,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:55:51,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:55:53,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:55:53,019 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:55:53,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233220175] [2022-11-26 00:55:53,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233220175] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:55:53,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:55:53,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:55:53,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659363919] [2022-11-26 00:55:53,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:55:53,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:55:53,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:55:53,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:55:53,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:55:53,021 INFO L87 Difference]: Start difference. First operand 1576 states and 5420 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:55,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:55:55,240 INFO L93 Difference]: Finished difference Result 2999 states and 9361 transitions. [2022-11-26 00:55:55,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:55:55,240 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:55:55,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:55:55,248 INFO L225 Difference]: With dead ends: 2999 [2022-11-26 00:55:55,248 INFO L226 Difference]: Without dead ends: 2988 [2022-11-26 00:55:55,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=160, Invalid=346, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:55:55,248 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 263 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1319 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 1351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:55:55,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 43 Invalid, 1351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1319 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:55:55,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2988 states. [2022-11-26 00:55:55,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2988 to 1578. [2022-11-26 00:55:55,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 3.4388078630310717) internal successors, (5423), 1577 states have internal predecessors, (5423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:55,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 5423 transitions. [2022-11-26 00:55:55,304 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 5423 transitions. Word has length 33 [2022-11-26 00:55:55,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:55:55,305 INFO L495 AbstractCegarLoop]: Abstraction has 1578 states and 5423 transitions. [2022-11-26 00:55:55,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:55,305 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 5423 transitions. [2022-11-26 00:55:55,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:55:55,308 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:55:55,308 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:55:55,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2022-11-26 00:55:55,309 INFO L420 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:55:55,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:55:55,309 INFO L85 PathProgramCache]: Analyzing trace with hash 380486563, now seen corresponding path program 155 times [2022-11-26 00:55:55,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:55:55,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418276838] [2022-11-26 00:55:55,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:55:55,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:55:55,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:55:56,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:55:56,907 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:55:56,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418276838] [2022-11-26 00:55:56,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418276838] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:55:56,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:55:56,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:55:56,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54283405] [2022-11-26 00:55:56,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:55:56,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:55:56,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:55:56,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:55:56,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:55:56,909 INFO L87 Difference]: Start difference. First operand 1578 states and 5423 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:59,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:55:59,279 INFO L93 Difference]: Finished difference Result 2993 states and 9358 transitions. [2022-11-26 00:55:59,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:55:59,280 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:55:59,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:55:59,287 INFO L225 Difference]: With dead ends: 2993 [2022-11-26 00:55:59,287 INFO L226 Difference]: Without dead ends: 2976 [2022-11-26 00:55:59,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=160, Invalid=346, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:55:59,288 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 225 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1358 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 1390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:55:59,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 43 Invalid, 1390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1358 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:55:59,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2976 states. [2022-11-26 00:55:59,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2976 to 1576. [2022-11-26 00:55:59,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 3.44) internal successors, (5418), 1575 states have internal predecessors, (5418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:59,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 5418 transitions. [2022-11-26 00:55:59,335 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 5418 transitions. Word has length 33 [2022-11-26 00:55:59,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:55:59,335 INFO L495 AbstractCegarLoop]: Abstraction has 1576 states and 5418 transitions. [2022-11-26 00:55:59,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:55:59,336 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 5418 transitions. [2022-11-26 00:55:59,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:55:59,339 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:55:59,339 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:55:59,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2022-11-26 00:55:59,339 INFO L420 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:55:59,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:55:59,340 INFO L85 PathProgramCache]: Analyzing trace with hash -304412471, now seen corresponding path program 156 times [2022-11-26 00:55:59,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:55:59,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197847164] [2022-11-26 00:55:59,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:55:59,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:55:59,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:00,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:56:00,916 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:00,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197847164] [2022-11-26 00:56:00,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197847164] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:56:00,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:56:00,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:56:00,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380891603] [2022-11-26 00:56:00,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:56:00,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:56:00,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:00,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:56:00,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:56:00,920 INFO L87 Difference]: Start difference. First operand 1576 states and 5418 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:03,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:03,210 INFO L93 Difference]: Finished difference Result 2979 states and 9331 transitions. [2022-11-26 00:56:03,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:56:03,211 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:56:03,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:03,217 INFO L225 Difference]: With dead ends: 2979 [2022-11-26 00:56:03,217 INFO L226 Difference]: Without dead ends: 2962 [2022-11-26 00:56:03,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:56:03,217 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 237 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 1332 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 1364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:03,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 34 Invalid, 1364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1332 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:56:03,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2962 states. [2022-11-26 00:56:03,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2962 to 1582. [2022-11-26 00:56:03,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1582 states, 1581 states have (on average 3.433902593295383) internal successors, (5429), 1581 states have internal predecessors, (5429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:03,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 5429 transitions. [2022-11-26 00:56:03,253 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 5429 transitions. Word has length 33 [2022-11-26 00:56:03,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:03,254 INFO L495 AbstractCegarLoop]: Abstraction has 1582 states and 5429 transitions. [2022-11-26 00:56:03,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:03,254 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 5429 transitions. [2022-11-26 00:56:03,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:56:03,257 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:03,257 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:56:03,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2022-11-26 00:56:03,257 INFO L420 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:56:03,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:03,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1382749403, now seen corresponding path program 157 times [2022-11-26 00:56:03,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:03,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460923360] [2022-11-26 00:56:03,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:03,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:03,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:04,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:56:04,434 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:04,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460923360] [2022-11-26 00:56:04,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460923360] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:56:04,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:56:04,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:56:04,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148530738] [2022-11-26 00:56:04,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:56:04,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:56:04,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:04,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:56:04,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:56:04,435 INFO L87 Difference]: Start difference. First operand 1582 states and 5429 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:06,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:06,534 INFO L93 Difference]: Finished difference Result 2967 states and 9312 transitions. [2022-11-26 00:56:06,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:56:06,535 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:56:06,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:06,541 INFO L225 Difference]: With dead ends: 2967 [2022-11-26 00:56:06,541 INFO L226 Difference]: Without dead ends: 2940 [2022-11-26 00:56:06,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=161, Invalid=345, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:56:06,542 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 224 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 1316 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 1348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:06,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 35 Invalid, 1348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1316 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:56:06,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2940 states. [2022-11-26 00:56:06,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2940 to 1570. [2022-11-26 00:56:06,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 3.4461440407903123) internal successors, (5407), 1569 states have internal predecessors, (5407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:06,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 5407 transitions. [2022-11-26 00:56:06,579 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 5407 transitions. Word has length 33 [2022-11-26 00:56:06,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:06,580 INFO L495 AbstractCegarLoop]: Abstraction has 1570 states and 5407 transitions. [2022-11-26 00:56:06,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:06,580 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 5407 transitions. [2022-11-26 00:56:06,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:56:06,583 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:06,583 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:56:06,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2022-11-26 00:56:06,583 INFO L420 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:56:06,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:06,583 INFO L85 PathProgramCache]: Analyzing trace with hash 286209253, now seen corresponding path program 158 times [2022-11-26 00:56:06,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:06,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83057232] [2022-11-26 00:56:06,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:06,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:06,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:08,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:56:08,169 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:08,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83057232] [2022-11-26 00:56:08,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83057232] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:56:08,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:56:08,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:56:08,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973224107] [2022-11-26 00:56:08,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:56:08,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:56:08,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:08,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:56:08,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:56:08,170 INFO L87 Difference]: Start difference. First operand 1570 states and 5407 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:11,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:11,207 INFO L93 Difference]: Finished difference Result 3011 states and 9402 transitions. [2022-11-26 00:56:11,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:56:11,208 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:56:11,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:11,214 INFO L225 Difference]: With dead ends: 3011 [2022-11-26 00:56:11,215 INFO L226 Difference]: Without dead ends: 2990 [2022-11-26 00:56:11,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=158, Invalid=348, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:56:11,215 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 221 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 1454 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 1487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:11,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 37 Invalid, 1487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1454 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-26 00:56:11,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2990 states. [2022-11-26 00:56:11,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2990 to 1576. [2022-11-26 00:56:11,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 3.4425396825396826) internal successors, (5422), 1575 states have internal predecessors, (5422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:11,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 5422 transitions. [2022-11-26 00:56:11,258 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 5422 transitions. Word has length 33 [2022-11-26 00:56:11,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:11,258 INFO L495 AbstractCegarLoop]: Abstraction has 1576 states and 5422 transitions. [2022-11-26 00:56:11,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:11,258 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 5422 transitions. [2022-11-26 00:56:11,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:56:11,261 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:11,261 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:56:11,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2022-11-26 00:56:11,262 INFO L420 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:56:11,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:11,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1823255407, now seen corresponding path program 159 times [2022-11-26 00:56:11,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:11,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280304718] [2022-11-26 00:56:11,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:11,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:11,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:12,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:56:12,955 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:12,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280304718] [2022-11-26 00:56:12,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280304718] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:56:12,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:56:12,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:56:12,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30287613] [2022-11-26 00:56:12,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:56:12,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:56:12,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:12,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:56:12,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:56:12,956 INFO L87 Difference]: Start difference. First operand 1576 states and 5422 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:15,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:15,788 INFO L93 Difference]: Finished difference Result 3019 states and 9406 transitions. [2022-11-26 00:56:15,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:56:15,789 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:56:15,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:15,795 INFO L225 Difference]: With dead ends: 3019 [2022-11-26 00:56:15,795 INFO L226 Difference]: Without dead ends: 3008 [2022-11-26 00:56:15,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:56:15,796 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 260 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 1474 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 1506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:15,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 49 Invalid, 1506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1474 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-26 00:56:15,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3008 states. [2022-11-26 00:56:15,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3008 to 1578. [2022-11-26 00:56:15,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 3.4400760938490804) internal successors, (5425), 1577 states have internal predecessors, (5425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:15,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 5425 transitions. [2022-11-26 00:56:15,835 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 5425 transitions. Word has length 33 [2022-11-26 00:56:15,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:15,835 INFO L495 AbstractCegarLoop]: Abstraction has 1578 states and 5425 transitions. [2022-11-26 00:56:15,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:15,835 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 5425 transitions. [2022-11-26 00:56:15,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:56:15,838 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:15,838 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:56:15,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2022-11-26 00:56:15,839 INFO L420 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:56:15,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:15,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1295902933, now seen corresponding path program 160 times [2022-11-26 00:56:15,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:15,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14263165] [2022-11-26 00:56:15,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:15,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:15,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:17,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:56:17,383 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:17,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14263165] [2022-11-26 00:56:17,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14263165] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:56:17,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:56:17,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:56:17,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454920104] [2022-11-26 00:56:17,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:56:17,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:56:17,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:17,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:56:17,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:56:17,384 INFO L87 Difference]: Start difference. First operand 1578 states and 5425 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:19,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:19,554 INFO L93 Difference]: Finished difference Result 3007 states and 9392 transitions. [2022-11-26 00:56:19,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:56:19,554 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:56:19,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:19,560 INFO L225 Difference]: With dead ends: 3007 [2022-11-26 00:56:19,560 INFO L226 Difference]: Without dead ends: 2988 [2022-11-26 00:56:19,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:56:19,560 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 245 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 1384 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 1415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:19,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 45 Invalid, 1415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1384 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:56:19,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2988 states. [2022-11-26 00:56:19,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2988 to 1574. [2022-11-26 00:56:19,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 3.4437380801017166) internal successors, (5417), 1573 states have internal predecessors, (5417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:19,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 5417 transitions. [2022-11-26 00:56:19,592 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 5417 transitions. Word has length 33 [2022-11-26 00:56:19,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:19,593 INFO L495 AbstractCegarLoop]: Abstraction has 1574 states and 5417 transitions. [2022-11-26 00:56:19,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:19,593 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 5417 transitions. [2022-11-26 00:56:19,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:56:19,595 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:19,595 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:56:19,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2022-11-26 00:56:19,596 INFO L420 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:56:19,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:19,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1044002599, now seen corresponding path program 161 times [2022-11-26 00:56:19,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:19,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724929416] [2022-11-26 00:56:19,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:19,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:19,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:20,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:56:21,000 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:21,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724929416] [2022-11-26 00:56:21,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724929416] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:56:21,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:56:21,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:56:21,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306989186] [2022-11-26 00:56:21,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:56:21,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:56:21,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:21,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:56:21,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:56:21,001 INFO L87 Difference]: Start difference. First operand 1574 states and 5417 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:23,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:23,281 INFO L93 Difference]: Finished difference Result 3003 states and 9384 transitions. [2022-11-26 00:56:23,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:56:23,282 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:56:23,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:23,288 INFO L225 Difference]: With dead ends: 3003 [2022-11-26 00:56:23,288 INFO L226 Difference]: Without dead ends: 2990 [2022-11-26 00:56:23,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=158, Invalid=348, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:56:23,289 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 224 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 1446 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 1479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:23,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 36 Invalid, 1479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1446 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-26 00:56:23,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2990 states. [2022-11-26 00:56:23,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2990 to 1576. [2022-11-26 00:56:23,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 3.4412698412698415) internal successors, (5420), 1575 states have internal predecessors, (5420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:23,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 5420 transitions. [2022-11-26 00:56:23,337 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 5420 transitions. Word has length 33 [2022-11-26 00:56:23,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:23,337 INFO L495 AbstractCegarLoop]: Abstraction has 1576 states and 5420 transitions. [2022-11-26 00:56:23,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:23,338 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 5420 transitions. [2022-11-26 00:56:23,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:56:23,342 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:23,342 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:56:23,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2022-11-26 00:56:23,342 INFO L420 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:56:23,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:23,343 INFO L85 PathProgramCache]: Analyzing trace with hash 980555473, now seen corresponding path program 162 times [2022-11-26 00:56:23,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:23,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898998021] [2022-11-26 00:56:23,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:23,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:23,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:24,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:56:24,782 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:24,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898998021] [2022-11-26 00:56:24,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898998021] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:56:24,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:56:24,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:56:24,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901245050] [2022-11-26 00:56:24,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:56:24,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:56:24,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:24,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:56:24,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:56:24,784 INFO L87 Difference]: Start difference. First operand 1576 states and 5420 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:27,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:27,350 INFO L93 Difference]: Finished difference Result 3019 states and 9404 transitions. [2022-11-26 00:56:27,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:56:27,351 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:56:27,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:27,357 INFO L225 Difference]: With dead ends: 3019 [2022-11-26 00:56:27,357 INFO L226 Difference]: Without dead ends: 3008 [2022-11-26 00:56:27,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:56:27,358 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 280 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1366 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 1398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:27,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 43 Invalid, 1398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1366 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-26 00:56:27,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3008 states. [2022-11-26 00:56:27,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3008 to 1578. [2022-11-26 00:56:27,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 3.4388078630310717) internal successors, (5423), 1577 states have internal predecessors, (5423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:27,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 5423 transitions. [2022-11-26 00:56:27,400 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 5423 transitions. Word has length 33 [2022-11-26 00:56:27,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:27,401 INFO L495 AbstractCegarLoop]: Abstraction has 1578 states and 5423 transitions. [2022-11-26 00:56:27,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:27,401 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 5423 transitions. [2022-11-26 00:56:27,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:56:27,404 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:27,404 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:56:27,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2022-11-26 00:56:27,404 INFO L420 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:56:27,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:27,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1507907947, now seen corresponding path program 163 times [2022-11-26 00:56:27,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:27,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319125799] [2022-11-26 00:56:27,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:27,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:27,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:29,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:56:29,037 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:29,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319125799] [2022-11-26 00:56:29,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319125799] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:56:29,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:56:29,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:56:29,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278666613] [2022-11-26 00:56:29,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:56:29,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:56:29,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:29,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:56:29,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:56:29,039 INFO L87 Difference]: Start difference. First operand 1578 states and 5423 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:31,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:31,801 INFO L93 Difference]: Finished difference Result 3007 states and 9390 transitions. [2022-11-26 00:56:31,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:56:31,802 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:56:31,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:31,808 INFO L225 Difference]: With dead ends: 3007 [2022-11-26 00:56:31,809 INFO L226 Difference]: Without dead ends: 2986 [2022-11-26 00:56:31,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:56:31,809 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 245 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1383 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 1415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:31,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 43 Invalid, 1415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1383 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-26 00:56:31,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2986 states. [2022-11-26 00:56:31,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2986 to 1572. [2022-11-26 00:56:31,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1571 states have (on average 3.4449395289624443) internal successors, (5412), 1571 states have internal predecessors, (5412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:31,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 5412 transitions. [2022-11-26 00:56:31,848 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 5412 transitions. Word has length 33 [2022-11-26 00:56:31,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:31,848 INFO L495 AbstractCegarLoop]: Abstraction has 1572 states and 5412 transitions. [2022-11-26 00:56:31,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:31,849 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 5412 transitions. [2022-11-26 00:56:31,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:56:31,851 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:31,851 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:56:31,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2022-11-26 00:56:31,852 INFO L420 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:56:31,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:31,852 INFO L85 PathProgramCache]: Analyzing trace with hash 130644445, now seen corresponding path program 164 times [2022-11-26 00:56:31,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:31,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776740369] [2022-11-26 00:56:31,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:31,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:31,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:33,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:56:33,137 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:33,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776740369] [2022-11-26 00:56:33,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776740369] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:56:33,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:56:33,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:56:33,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830378633] [2022-11-26 00:56:33,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:56:33,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:56:33,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:33,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:56:33,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:56:33,138 INFO L87 Difference]: Start difference. First operand 1572 states and 5412 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:35,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:35,440 INFO L93 Difference]: Finished difference Result 3037 states and 9450 transitions. [2022-11-26 00:56:35,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:56:35,440 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:56:35,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:35,446 INFO L225 Difference]: With dead ends: 3037 [2022-11-26 00:56:35,446 INFO L226 Difference]: Without dead ends: 3016 [2022-11-26 00:56:35,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:56:35,447 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 300 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 1346 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 1378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:35,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 33 Invalid, 1378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1346 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:56:35,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3016 states. [2022-11-26 00:56:35,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3016 to 1576. [2022-11-26 00:56:35,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 3.4425396825396826) internal successors, (5422), 1575 states have internal predecessors, (5422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:35,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 5422 transitions. [2022-11-26 00:56:35,483 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 5422 transitions. Word has length 33 [2022-11-26 00:56:35,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:35,483 INFO L495 AbstractCegarLoop]: Abstraction has 1576 states and 5422 transitions. [2022-11-26 00:56:35,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:35,484 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 5422 transitions. [2022-11-26 00:56:35,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:56:35,486 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:35,486 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:56:35,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2022-11-26 00:56:35,487 INFO L420 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:56:35,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:35,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1978820215, now seen corresponding path program 165 times [2022-11-26 00:56:35,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:35,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033028345] [2022-11-26 00:56:35,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:35,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:35,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:36,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:56:36,981 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:36,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033028345] [2022-11-26 00:56:36,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033028345] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:56:36,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:56:36,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:56:36,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488399944] [2022-11-26 00:56:36,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:56:36,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:56:36,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:36,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:56:36,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:56:36,983 INFO L87 Difference]: Start difference. First operand 1576 states and 5422 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:39,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:39,626 INFO L93 Difference]: Finished difference Result 3029 states and 9434 transitions. [2022-11-26 00:56:39,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:56:39,627 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:56:39,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:39,633 INFO L225 Difference]: With dead ends: 3029 [2022-11-26 00:56:39,633 INFO L226 Difference]: Without dead ends: 3018 [2022-11-26 00:56:39,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:56:39,634 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 283 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1367 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 1398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:39,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 44 Invalid, 1398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1367 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-26 00:56:39,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3018 states. [2022-11-26 00:56:39,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3018 to 1578. [2022-11-26 00:56:39,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 3.4400760938490804) internal successors, (5425), 1577 states have internal predecessors, (5425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:39,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 5425 transitions. [2022-11-26 00:56:39,670 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 5425 transitions. Word has length 33 [2022-11-26 00:56:39,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:39,670 INFO L495 AbstractCegarLoop]: Abstraction has 1578 states and 5425 transitions. [2022-11-26 00:56:39,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:39,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 5425 transitions. [2022-11-26 00:56:39,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:56:39,673 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:39,673 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:56:39,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2022-11-26 00:56:39,674 INFO L420 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:56:39,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:39,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1451467741, now seen corresponding path program 166 times [2022-11-26 00:56:39,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:39,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438726685] [2022-11-26 00:56:39,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:39,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:39,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:41,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:56:41,103 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:41,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438726685] [2022-11-26 00:56:41,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438726685] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:56:41,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:56:41,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:56:41,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194256137] [2022-11-26 00:56:41,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:56:41,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:56:41,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:41,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:56:41,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:56:41,104 INFO L87 Difference]: Start difference. First operand 1578 states and 5425 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:43,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:43,246 INFO L93 Difference]: Finished difference Result 3033 states and 9440 transitions. [2022-11-26 00:56:43,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:56:43,246 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:56:43,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:43,253 INFO L225 Difference]: With dead ends: 3033 [2022-11-26 00:56:43,253 INFO L226 Difference]: Without dead ends: 3014 [2022-11-26 00:56:43,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:56:43,254 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 299 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 1340 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 1370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:43,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 41 Invalid, 1370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1340 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:56:43,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3014 states. [2022-11-26 00:56:43,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3014 to 1574. [2022-11-26 00:56:43,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 3.4437380801017166) internal successors, (5417), 1573 states have internal predecessors, (5417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:43,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 5417 transitions. [2022-11-26 00:56:43,294 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 5417 transitions. Word has length 33 [2022-11-26 00:56:43,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:43,294 INFO L495 AbstractCegarLoop]: Abstraction has 1574 states and 5417 transitions. [2022-11-26 00:56:43,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:43,294 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 5417 transitions. [2022-11-26 00:56:43,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:56:43,297 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:43,297 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:56:43,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2022-11-26 00:56:43,297 INFO L420 AbstractCegarLoop]: === Iteration 176 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:56:43,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:43,297 INFO L85 PathProgramCache]: Analyzing trace with hash -79685663, now seen corresponding path program 167 times [2022-11-26 00:56:43,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:43,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11620621] [2022-11-26 00:56:43,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:43,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:43,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:44,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:56:44,720 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:44,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11620621] [2022-11-26 00:56:44,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11620621] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:56:44,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:56:44,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:56:44,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120968126] [2022-11-26 00:56:44,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:56:44,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:56:44,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:44,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:56:44,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:56:44,722 INFO L87 Difference]: Start difference. First operand 1574 states and 5417 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:47,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:47,026 INFO L93 Difference]: Finished difference Result 3009 states and 9404 transitions. [2022-11-26 00:56:47,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:56:47,026 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:56:47,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:47,033 INFO L225 Difference]: With dead ends: 3009 [2022-11-26 00:56:47,034 INFO L226 Difference]: Without dead ends: 2988 [2022-11-26 00:56:47,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=158, Invalid=348, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:56:47,034 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 222 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 1476 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 1507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:47,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 35 Invalid, 1507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1476 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:56:47,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2988 states. [2022-11-26 00:56:47,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2988 to 1578. [2022-11-26 00:56:47,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 3.439441978440076) internal successors, (5424), 1577 states have internal predecessors, (5424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:47,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 5424 transitions. [2022-11-26 00:56:47,075 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 5424 transitions. Word has length 33 [2022-11-26 00:56:47,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:47,075 INFO L495 AbstractCegarLoop]: Abstraction has 1578 states and 5424 transitions. [2022-11-26 00:56:47,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:47,075 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 5424 transitions. [2022-11-26 00:56:47,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:56:47,078 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:47,078 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:56:47,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2022-11-26 00:56:47,078 INFO L420 AbstractCegarLoop]: === Iteration 177 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:56:47,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:47,078 INFO L85 PathProgramCache]: Analyzing trace with hash 2146011203, now seen corresponding path program 168 times [2022-11-26 00:56:47,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:47,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088030538] [2022-11-26 00:56:47,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:47,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:47,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:48,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:56:48,213 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:48,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088030538] [2022-11-26 00:56:48,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088030538] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:56:48,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:56:48,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:56:48,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943493135] [2022-11-26 00:56:48,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:56:48,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:56:48,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:48,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:56:48,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:56:48,214 INFO L87 Difference]: Start difference. First operand 1578 states and 5424 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:50,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:50,257 INFO L93 Difference]: Finished difference Result 3005 states and 9396 transitions. [2022-11-26 00:56:50,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:56:50,257 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:56:50,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:50,264 INFO L225 Difference]: With dead ends: 3005 [2022-11-26 00:56:50,264 INFO L226 Difference]: Without dead ends: 2992 [2022-11-26 00:56:50,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=158, Invalid=348, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:56:50,264 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 229 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 1477 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 1507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:50,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 37 Invalid, 1507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1477 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:56:50,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2992 states. [2022-11-26 00:56:50,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2992 to 1582. [2022-11-26 00:56:50,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1582 states, 1581 states have (on average 3.43516761543327) internal successors, (5431), 1581 states have internal predecessors, (5431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:50,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 5431 transitions. [2022-11-26 00:56:50,319 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 5431 transitions. Word has length 33 [2022-11-26 00:56:50,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:50,319 INFO L495 AbstractCegarLoop]: Abstraction has 1582 states and 5431 transitions. [2022-11-26 00:56:50,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:50,320 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 5431 transitions. [2022-11-26 00:56:50,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:56:50,324 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:50,324 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:56:50,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2022-11-26 00:56:50,324 INFO L420 AbstractCegarLoop]: === Iteration 178 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:56:50,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:50,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1293649439, now seen corresponding path program 169 times [2022-11-26 00:56:50,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:50,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192383822] [2022-11-26 00:56:50,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:50,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:50,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:51,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:56:51,648 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:51,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192383822] [2022-11-26 00:56:51,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192383822] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:56:51,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:56:51,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:56:51,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639106702] [2022-11-26 00:56:51,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:56:51,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:56:51,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:51,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:56:51,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:56:51,650 INFO L87 Difference]: Start difference. First operand 1582 states and 5431 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:53,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:53,597 INFO L93 Difference]: Finished difference Result 2991 states and 9376 transitions. [2022-11-26 00:56:53,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:56:53,597 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:56:53,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:53,603 INFO L225 Difference]: With dead ends: 2991 [2022-11-26 00:56:53,603 INFO L226 Difference]: Without dead ends: 2968 [2022-11-26 00:56:53,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=158, Invalid=348, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:56:53,603 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 210 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 1342 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 1371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:53,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 38 Invalid, 1371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1342 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:56:53,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2968 states. [2022-11-26 00:56:53,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2968 to 1574. [2022-11-26 00:56:53,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 3.442466624284806) internal successors, (5415), 1573 states have internal predecessors, (5415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:53,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 5415 transitions. [2022-11-26 00:56:53,640 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 5415 transitions. Word has length 33 [2022-11-26 00:56:53,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:53,640 INFO L495 AbstractCegarLoop]: Abstraction has 1574 states and 5415 transitions. [2022-11-26 00:56:53,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:53,641 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 5415 transitions. [2022-11-26 00:56:53,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:56:53,643 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:53,643 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:56:53,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2022-11-26 00:56:53,644 INFO L420 AbstractCegarLoop]: === Iteration 179 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:56:53,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:53,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1888126681, now seen corresponding path program 170 times [2022-11-26 00:56:53,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:53,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153542468] [2022-11-26 00:56:53,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:53,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:53,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:54,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:56:54,955 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:54,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153542468] [2022-11-26 00:56:54,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153542468] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:56:54,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:56:54,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:56:54,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195729568] [2022-11-26 00:56:54,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:56:54,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:56:54,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:54,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:56:54,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:56:54,956 INFO L87 Difference]: Start difference. First operand 1574 states and 5415 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:57,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:57,330 INFO L93 Difference]: Finished difference Result 3021 states and 9419 transitions. [2022-11-26 00:56:57,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:56:57,330 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:56:57,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:57,336 INFO L225 Difference]: With dead ends: 3021 [2022-11-26 00:56:57,336 INFO L226 Difference]: Without dead ends: 3010 [2022-11-26 00:56:57,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:56:57,337 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 268 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 1466 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 1495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:57,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 37 Invalid, 1495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1466 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-26 00:56:57,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3010 states. [2022-11-26 00:56:57,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3010 to 1578. [2022-11-26 00:56:57,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 3.4400760938490804) internal successors, (5425), 1577 states have internal predecessors, (5425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:57,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 5425 transitions. [2022-11-26 00:56:57,371 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 5425 transitions. Word has length 33 [2022-11-26 00:56:57,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:57,371 INFO L495 AbstractCegarLoop]: Abstraction has 1578 states and 5425 transitions. [2022-11-26 00:56:57,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:56:57,371 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 5425 transitions. [2022-11-26 00:56:57,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:56:57,374 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:57,374 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:56:57,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2022-11-26 00:56:57,374 INFO L420 AbstractCegarLoop]: === Iteration 180 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:56:57,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:57,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1323252131, now seen corresponding path program 171 times [2022-11-26 00:56:57,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:57,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954903520] [2022-11-26 00:56:57,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:57,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:57,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:58,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:56:58,672 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:58,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954903520] [2022-11-26 00:56:58,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954903520] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:56:58,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:56:58,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:56:58,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383775945] [2022-11-26 00:56:58,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:56:58,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:56:58,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:58,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:56:58,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:56:58,673 INFO L87 Difference]: Start difference. First operand 1578 states and 5425 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:00,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:57:00,904 INFO L93 Difference]: Finished difference Result 3023 states and 9421 transitions. [2022-11-26 00:57:00,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:57:00,907 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:57:00,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:57:00,915 INFO L225 Difference]: With dead ends: 3023 [2022-11-26 00:57:00,915 INFO L226 Difference]: Without dead ends: 3008 [2022-11-26 00:57:00,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:57:00,915 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 291 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 1387 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 1416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:57:00,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 30 Invalid, 1416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1387 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:57:00,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3008 states. [2022-11-26 00:57:00,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3008 to 1576. [2022-11-26 00:57:00,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 3.4412698412698415) internal successors, (5420), 1575 states have internal predecessors, (5420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:00,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 5420 transitions. [2022-11-26 00:57:00,965 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 5420 transitions. Word has length 33 [2022-11-26 00:57:00,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:57:00,966 INFO L495 AbstractCegarLoop]: Abstraction has 1576 states and 5420 transitions. [2022-11-26 00:57:00,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:00,966 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 5420 transitions. [2022-11-26 00:57:00,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:57:00,969 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:57:00,969 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:57:00,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2022-11-26 00:57:00,970 INFO L420 AbstractCegarLoop]: === Iteration 181 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:57:00,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:57:00,970 INFO L85 PathProgramCache]: Analyzing trace with hash 806402761, now seen corresponding path program 172 times [2022-11-26 00:57:00,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:57:00,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929982965] [2022-11-26 00:57:00,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:57:00,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:57:01,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:57:02,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:57:02,232 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:57:02,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929982965] [2022-11-26 00:57:02,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929982965] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:57:02,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:57:02,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:57:02,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547926814] [2022-11-26 00:57:02,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:57:02,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:57:02,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:57:02,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:57:02,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:57:02,233 INFO L87 Difference]: Start difference. First operand 1576 states and 5420 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:04,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:57:04,370 INFO L93 Difference]: Finished difference Result 3017 states and 9409 transitions. [2022-11-26 00:57:04,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:57:04,370 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:57:04,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:57:04,376 INFO L225 Difference]: With dead ends: 3017 [2022-11-26 00:57:04,376 INFO L226 Difference]: Without dead ends: 3006 [2022-11-26 00:57:04,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:57:04,376 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 287 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 1419 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 1447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:57:04,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 42 Invalid, 1447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1419 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:57:04,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3006 states. [2022-11-26 00:57:04,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3006 to 1578. [2022-11-26 00:57:04,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 3.4388078630310717) internal successors, (5423), 1577 states have internal predecessors, (5423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:04,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 5423 transitions. [2022-11-26 00:57:04,425 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 5423 transitions. Word has length 33 [2022-11-26 00:57:04,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:57:04,425 INFO L495 AbstractCegarLoop]: Abstraction has 1578 states and 5423 transitions. [2022-11-26 00:57:04,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:04,425 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 5423 transitions. [2022-11-26 00:57:04,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:57:04,427 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:57:04,427 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:57:04,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2022-11-26 00:57:04,427 INFO L420 AbstractCegarLoop]: === Iteration 182 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:57:04,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:57:04,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1333755235, now seen corresponding path program 173 times [2022-11-26 00:57:04,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:57:04,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785261758] [2022-11-26 00:57:04,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:57:04,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:57:04,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:57:05,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:57:05,570 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:57:05,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785261758] [2022-11-26 00:57:05,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785261758] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:57:05,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:57:05,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:57:05,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365912527] [2022-11-26 00:57:05,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:57:05,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:57:05,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:57:05,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:57:05,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:57:05,571 INFO L87 Difference]: Start difference. First operand 1578 states and 5423 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:07,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:57:07,704 INFO L93 Difference]: Finished difference Result 3011 states and 9406 transitions. [2022-11-26 00:57:07,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:57:07,705 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:57:07,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:57:07,710 INFO L225 Difference]: With dead ends: 3011 [2022-11-26 00:57:07,710 INFO L226 Difference]: Without dead ends: 2994 [2022-11-26 00:57:07,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:57:07,710 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 258 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1388 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 1416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:57:07,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 43 Invalid, 1416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1388 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:57:07,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2994 states. [2022-11-26 00:57:07,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2994 to 1576. [2022-11-26 00:57:07,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 3.44) internal successors, (5418), 1575 states have internal predecessors, (5418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:07,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 5418 transitions. [2022-11-26 00:57:07,749 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 5418 transitions. Word has length 33 [2022-11-26 00:57:07,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:57:07,749 INFO L495 AbstractCegarLoop]: Abstraction has 1576 states and 5418 transitions. [2022-11-26 00:57:07,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:07,749 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 5418 transitions. [2022-11-26 00:57:07,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:57:07,752 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:57:07,752 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:57:07,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2022-11-26 00:57:07,752 INFO L420 AbstractCegarLoop]: === Iteration 183 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:57:07,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:57:07,752 INFO L85 PathProgramCache]: Analyzing trace with hash 491309641, now seen corresponding path program 174 times [2022-11-26 00:57:07,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:57:07,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12899108] [2022-11-26 00:57:07,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:57:07,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:57:07,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:57:09,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:57:09,044 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:57:09,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12899108] [2022-11-26 00:57:09,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12899108] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:57:09,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:57:09,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:57:09,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884116508] [2022-11-26 00:57:09,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:57:09,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:57:09,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:57:09,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:57:09,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:57:09,045 INFO L87 Difference]: Start difference. First operand 1576 states and 5418 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:11,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:57:11,357 INFO L93 Difference]: Finished difference Result 3003 states and 9390 transitions. [2022-11-26 00:57:11,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:57:11,358 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:57:11,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:57:11,364 INFO L225 Difference]: With dead ends: 3003 [2022-11-26 00:57:11,365 INFO L226 Difference]: Without dead ends: 2990 [2022-11-26 00:57:11,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:57:11,365 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 237 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 1460 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 1488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:57:11,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 37 Invalid, 1488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1460 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:57:11,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2990 states. [2022-11-26 00:57:11,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2990 to 1580. [2022-11-26 00:57:11,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 3.435718809373021) internal successors, (5425), 1579 states have internal predecessors, (5425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:11,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 5425 transitions. [2022-11-26 00:57:11,404 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 5425 transitions. Word has length 33 [2022-11-26 00:57:11,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:57:11,404 INFO L495 AbstractCegarLoop]: Abstraction has 1580 states and 5425 transitions. [2022-11-26 00:57:11,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:11,404 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 5425 transitions. [2022-11-26 00:57:11,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:57:11,407 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:57:11,407 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:57:11,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2022-11-26 00:57:11,408 INFO L420 AbstractCegarLoop]: === Iteration 184 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:57:11,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:57:11,408 INFO L85 PathProgramCache]: Analyzing trace with hash 2102250599, now seen corresponding path program 175 times [2022-11-26 00:57:11,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:57:11,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395811756] [2022-11-26 00:57:11,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:57:11,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:57:11,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:57:12,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:57:12,852 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:57:12,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395811756] [2022-11-26 00:57:12,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395811756] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:57:12,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:57:12,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:57:12,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827959350] [2022-11-26 00:57:12,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:57:12,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:57:12,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:57:12,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:57:12,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:57:12,854 INFO L87 Difference]: Start difference. First operand 1580 states and 5425 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:15,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:57:15,042 INFO L93 Difference]: Finished difference Result 2989 states and 9370 transitions. [2022-11-26 00:57:15,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:57:15,043 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:57:15,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:57:15,048 INFO L225 Difference]: With dead ends: 2989 [2022-11-26 00:57:15,048 INFO L226 Difference]: Without dead ends: 2966 [2022-11-26 00:57:15,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:57:15,049 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 207 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 1453 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 1481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:57:15,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 39 Invalid, 1481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1453 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:57:15,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2966 states. [2022-11-26 00:57:15,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2966 to 1572. [2022-11-26 00:57:15,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1571 states have (on average 3.4436664544875875) internal successors, (5410), 1571 states have internal predecessors, (5410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:15,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 5410 transitions. [2022-11-26 00:57:15,099 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 5410 transitions. Word has length 33 [2022-11-26 00:57:15,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:57:15,100 INFO L495 AbstractCegarLoop]: Abstraction has 1572 states and 5410 transitions. [2022-11-26 00:57:15,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:15,100 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 5410 transitions. [2022-11-26 00:57:15,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:57:15,104 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:57:15,104 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:57:15,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2022-11-26 00:57:15,104 INFO L420 AbstractCegarLoop]: === Iteration 185 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:57:15,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:57:15,105 INFO L85 PathProgramCache]: Analyzing trace with hash -439465143, now seen corresponding path program 176 times [2022-11-26 00:57:15,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:57:15,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369354552] [2022-11-26 00:57:15,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:57:15,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:57:15,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:57:16,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:57:16,507 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:57:16,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369354552] [2022-11-26 00:57:16,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369354552] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:57:16,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:57:16,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:57:16,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645686270] [2022-11-26 00:57:16,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:57:16,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:57:16,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:57:16,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:57:16,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:57:16,508 INFO L87 Difference]: Start difference. First operand 1572 states and 5410 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:18,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:57:18,900 INFO L93 Difference]: Finished difference Result 2999 states and 9382 transitions. [2022-11-26 00:57:18,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:57:18,900 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:57:18,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:57:18,907 INFO L225 Difference]: With dead ends: 2999 [2022-11-26 00:57:18,908 INFO L226 Difference]: Without dead ends: 2986 [2022-11-26 00:57:18,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=158, Invalid=348, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:57:18,908 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 210 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1532 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 1563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:57:18,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 43 Invalid, 1563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1532 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-26 00:57:18,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2986 states. [2022-11-26 00:57:18,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2986 to 1576. [2022-11-26 00:57:18,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 3.4412698412698415) internal successors, (5420), 1575 states have internal predecessors, (5420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:18,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 5420 transitions. [2022-11-26 00:57:18,948 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 5420 transitions. Word has length 33 [2022-11-26 00:57:18,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:57:18,948 INFO L495 AbstractCegarLoop]: Abstraction has 1576 states and 5420 transitions. [2022-11-26 00:57:18,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:18,948 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 5420 transitions. [2022-11-26 00:57:18,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:57:18,951 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:57:18,951 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:57:18,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2022-11-26 00:57:18,951 INFO L420 AbstractCegarLoop]: === Iteration 186 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:57:18,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:57:18,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1097525585, now seen corresponding path program 177 times [2022-11-26 00:57:18,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:57:18,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090056195] [2022-11-26 00:57:18,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:57:18,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:57:19,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:57:20,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:57:20,350 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:57:20,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090056195] [2022-11-26 00:57:20,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090056195] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:57:20,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:57:20,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:57:20,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473745112] [2022-11-26 00:57:20,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:57:20,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:57:20,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:57:20,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:57:20,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:57:20,351 INFO L87 Difference]: Start difference. First operand 1576 states and 5420 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:22,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:57:22,436 INFO L93 Difference]: Finished difference Result 3013 states and 9398 transitions. [2022-11-26 00:57:22,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:57:22,437 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:57:22,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:57:22,443 INFO L225 Difference]: With dead ends: 3013 [2022-11-26 00:57:22,443 INFO L226 Difference]: Without dead ends: 3002 [2022-11-26 00:57:22,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=158, Invalid=348, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:57:22,443 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 264 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 1448 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 1478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:57:22,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 37 Invalid, 1478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1448 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:57:22,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3002 states. [2022-11-26 00:57:22,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3002 to 1578. [2022-11-26 00:57:22,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 3.4388078630310717) internal successors, (5423), 1577 states have internal predecessors, (5423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:22,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 5423 transitions. [2022-11-26 00:57:22,477 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 5423 transitions. Word has length 33 [2022-11-26 00:57:22,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:57:22,477 INFO L495 AbstractCegarLoop]: Abstraction has 1578 states and 5423 transitions. [2022-11-26 00:57:22,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:22,477 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 5423 transitions. [2022-11-26 00:57:22,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:57:22,479 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:57:22,479 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:57:22,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2022-11-26 00:57:22,480 INFO L420 AbstractCegarLoop]: === Iteration 187 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:57:22,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:57:22,480 INFO L85 PathProgramCache]: Analyzing trace with hash 13937101, now seen corresponding path program 178 times [2022-11-26 00:57:22,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:57:22,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005597569] [2022-11-26 00:57:22,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:57:22,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:57:22,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:57:23,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:57:23,684 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:57:23,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005597569] [2022-11-26 00:57:23,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005597569] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:57:23,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:57:23,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:57:23,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310786462] [2022-11-26 00:57:23,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:57:23,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:57:23,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:57:23,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:57:23,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:57:23,686 INFO L87 Difference]: Start difference. First operand 1578 states and 5423 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:25,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:57:25,803 INFO L93 Difference]: Finished difference Result 3001 states and 9384 transitions. [2022-11-26 00:57:25,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:57:25,803 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:57:25,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:57:25,810 INFO L225 Difference]: With dead ends: 3001 [2022-11-26 00:57:25,810 INFO L226 Difference]: Without dead ends: 2984 [2022-11-26 00:57:25,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=158, Invalid=348, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:57:25,811 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 245 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 1331 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 1361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:57:25,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 34 Invalid, 1361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1331 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:57:25,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2984 states. [2022-11-26 00:57:25,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2984 to 1574. [2022-11-26 00:57:25,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 3.442466624284806) internal successors, (5415), 1573 states have internal predecessors, (5415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:25,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 5415 transitions. [2022-11-26 00:57:25,847 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 5415 transitions. Word has length 33 [2022-11-26 00:57:25,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:57:25,847 INFO L495 AbstractCegarLoop]: Abstraction has 1574 states and 5415 transitions. [2022-11-26 00:57:25,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:25,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 5415 transitions. [2022-11-26 00:57:25,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:57:25,851 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:57:25,851 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:57:25,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2022-11-26 00:57:25,851 INFO L420 AbstractCegarLoop]: === Iteration 188 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:57:25,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:57:25,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1486568935, now seen corresponding path program 179 times [2022-11-26 00:57:25,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:57:25,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981728036] [2022-11-26 00:57:25,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:57:25,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:57:25,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:57:27,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:57:27,192 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:57:27,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981728036] [2022-11-26 00:57:27,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981728036] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:57:27,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:57:27,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:57:27,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502897955] [2022-11-26 00:57:27,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:57:27,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:57:27,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:57:27,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:57:27,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:57:27,193 INFO L87 Difference]: Start difference. First operand 1574 states and 5415 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:29,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:57:29,589 INFO L93 Difference]: Finished difference Result 3015 states and 9400 transitions. [2022-11-26 00:57:29,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:57:29,589 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:57:29,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:57:29,595 INFO L225 Difference]: With dead ends: 3015 [2022-11-26 00:57:29,595 INFO L226 Difference]: Without dead ends: 3002 [2022-11-26 00:57:29,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:57:29,595 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 272 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 1395 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 1426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:57:29,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 41 Invalid, 1426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1395 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-26 00:57:29,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3002 states. [2022-11-26 00:57:29,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3002 to 1576. [2022-11-26 00:57:29,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 3.44) internal successors, (5418), 1575 states have internal predecessors, (5418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:29,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 5418 transitions. [2022-11-26 00:57:29,627 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 5418 transitions. Word has length 33 [2022-11-26 00:57:29,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:57:29,627 INFO L495 AbstractCegarLoop]: Abstraction has 1576 states and 5418 transitions. [2022-11-26 00:57:29,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:29,628 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 5418 transitions. [2022-11-26 00:57:29,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:57:29,630 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:57:29,630 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:57:29,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2022-11-26 00:57:29,631 INFO L420 AbstractCegarLoop]: === Iteration 189 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:57:29,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:57:29,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1423121809, now seen corresponding path program 180 times [2022-11-26 00:57:29,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:57:29,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829082359] [2022-11-26 00:57:29,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:57:29,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:57:29,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:57:30,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:57:30,947 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:57:30,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829082359] [2022-11-26 00:57:30,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829082359] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:57:30,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:57:30,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:57:30,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073994090] [2022-11-26 00:57:30,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:57:30,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:57:30,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:57:30,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:57:30,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:57:30,949 INFO L87 Difference]: Start difference. First operand 1576 states and 5418 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:33,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:57:33,417 INFO L93 Difference]: Finished difference Result 3019 states and 9408 transitions. [2022-11-26 00:57:33,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:57:33,417 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:57:33,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:57:33,423 INFO L225 Difference]: With dead ends: 3019 [2022-11-26 00:57:33,423 INFO L226 Difference]: Without dead ends: 3008 [2022-11-26 00:57:33,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:57:33,423 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 264 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1431 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 1461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:57:33,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 48 Invalid, 1461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1431 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-26 00:57:33,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3008 states. [2022-11-26 00:57:33,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3008 to 1578. [2022-11-26 00:57:33,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 3.437539632213063) internal successors, (5421), 1577 states have internal predecessors, (5421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:33,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 5421 transitions. [2022-11-26 00:57:33,457 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 5421 transitions. Word has length 33 [2022-11-26 00:57:33,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:57:33,457 INFO L495 AbstractCegarLoop]: Abstraction has 1578 states and 5421 transitions. [2022-11-26 00:57:33,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:33,457 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 5421 transitions. [2022-11-26 00:57:33,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:57:33,459 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:57:33,459 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:57:33,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2022-11-26 00:57:33,460 INFO L420 AbstractCegarLoop]: === Iteration 190 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:57:33,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:57:33,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1950474283, now seen corresponding path program 181 times [2022-11-26 00:57:33,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:57:33,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991108773] [2022-11-26 00:57:33,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:57:33,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:57:33,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:57:34,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:57:34,732 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:57:34,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991108773] [2022-11-26 00:57:34,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991108773] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:57:34,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:57:34,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:57:34,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999881649] [2022-11-26 00:57:34,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:57:34,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:57:34,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:57:34,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:57:34,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:57:34,733 INFO L87 Difference]: Start difference. First operand 1578 states and 5421 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:37,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:57:37,158 INFO L93 Difference]: Finished difference Result 3007 states and 9394 transitions. [2022-11-26 00:57:37,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:57:37,158 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:57:37,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:57:37,164 INFO L225 Difference]: With dead ends: 3007 [2022-11-26 00:57:37,164 INFO L226 Difference]: Without dead ends: 2988 [2022-11-26 00:57:37,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:57:37,164 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 214 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 1496 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 1526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:57:37,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 49 Invalid, 1526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1496 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-26 00:57:37,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2988 states. [2022-11-26 00:57:37,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2988 to 1574. [2022-11-26 00:57:37,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 3.4411951684678956) internal successors, (5413), 1573 states have internal predecessors, (5413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:37,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 5413 transitions. [2022-11-26 00:57:37,200 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 5413 transitions. Word has length 33 [2022-11-26 00:57:37,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:57:37,200 INFO L495 AbstractCegarLoop]: Abstraction has 1574 states and 5413 transitions. [2022-11-26 00:57:37,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:37,200 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 5413 transitions. [2022-11-26 00:57:37,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:57:37,202 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:57:37,202 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:57:37,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2022-11-26 00:57:37,203 INFO L420 AbstractCegarLoop]: === Iteration 191 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:57:37,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:57:37,203 INFO L85 PathProgramCache]: Analyzing trace with hash -869335321, now seen corresponding path program 182 times [2022-11-26 00:57:37,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:57:37,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669365678] [2022-11-26 00:57:37,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:57:37,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:57:37,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:57:38,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:57:38,415 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:57:38,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669365678] [2022-11-26 00:57:38,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669365678] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:57:38,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:57:38,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:57:38,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705180910] [2022-11-26 00:57:38,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:57:38,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:57:38,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:57:38,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:57:38,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:57:38,416 INFO L87 Difference]: Start difference. First operand 1574 states and 5413 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:40,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:57:40,526 INFO L93 Difference]: Finished difference Result 3021 states and 9417 transitions. [2022-11-26 00:57:40,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:57:40,526 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:57:40,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:57:40,532 INFO L225 Difference]: With dead ends: 3021 [2022-11-26 00:57:40,532 INFO L226 Difference]: Without dead ends: 3010 [2022-11-26 00:57:40,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:57:40,533 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 297 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 1370 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 1399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:57:40,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 39 Invalid, 1399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1370 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:57:40,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3010 states. [2022-11-26 00:57:40,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3010 to 1578. [2022-11-26 00:57:40,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 3.4388078630310717) internal successors, (5423), 1577 states have internal predecessors, (5423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:40,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 5423 transitions. [2022-11-26 00:57:40,570 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 5423 transitions. Word has length 33 [2022-11-26 00:57:40,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:57:40,570 INFO L495 AbstractCegarLoop]: Abstraction has 1578 states and 5423 transitions. [2022-11-26 00:57:40,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:40,570 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 5423 transitions. [2022-11-26 00:57:40,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:57:40,573 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:57:40,573 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:57:40,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2022-11-26 00:57:40,573 INFO L420 AbstractCegarLoop]: === Iteration 192 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:57:40,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:57:40,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1952923805, now seen corresponding path program 183 times [2022-11-26 00:57:40,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:57:40,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458660281] [2022-11-26 00:57:40,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:57:40,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:57:40,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:57:41,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:57:41,908 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:57:41,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458660281] [2022-11-26 00:57:41,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458660281] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:57:41,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:57:41,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:57:41,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821058639] [2022-11-26 00:57:41,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:57:41,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:57:41,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:57:41,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:57:41,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:57:41,910 INFO L87 Difference]: Start difference. First operand 1578 states and 5423 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:43,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:57:43,971 INFO L93 Difference]: Finished difference Result 3023 states and 9419 transitions. [2022-11-26 00:57:43,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:57:43,972 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:57:43,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:57:43,977 INFO L225 Difference]: With dead ends: 3023 [2022-11-26 00:57:43,977 INFO L226 Difference]: Without dead ends: 3008 [2022-11-26 00:57:43,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:57:43,977 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 289 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 1419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:57:43,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 37 Invalid, 1419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1390 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:57:43,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3008 states. [2022-11-26 00:57:44,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3008 to 1576. [2022-11-26 00:57:44,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 3.44) internal successors, (5418), 1575 states have internal predecessors, (5418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:44,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 5418 transitions. [2022-11-26 00:57:44,012 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 5418 transitions. Word has length 33 [2022-11-26 00:57:44,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:57:44,012 INFO L495 AbstractCegarLoop]: Abstraction has 1576 states and 5418 transitions. [2022-11-26 00:57:44,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:44,012 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 5418 transitions. [2022-11-26 00:57:44,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:57:44,016 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:57:44,016 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:57:44,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2022-11-26 00:57:44,017 INFO L420 AbstractCegarLoop]: === Iteration 193 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:57:44,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:57:44,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1825194121, now seen corresponding path program 184 times [2022-11-26 00:57:44,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:57:44,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793173181] [2022-11-26 00:57:44,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:57:44,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:57:44,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:57:45,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:57:45,440 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:57:45,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793173181] [2022-11-26 00:57:45,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793173181] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:57:45,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:57:45,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:57:45,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341081203] [2022-11-26 00:57:45,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:57:45,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:57:45,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:57:45,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:57:45,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:57:45,442 INFO L87 Difference]: Start difference. First operand 1576 states and 5418 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:47,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:57:47,570 INFO L93 Difference]: Finished difference Result 3017 states and 9407 transitions. [2022-11-26 00:57:47,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:57:47,570 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:57:47,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:57:47,576 INFO L225 Difference]: With dead ends: 3017 [2022-11-26 00:57:47,576 INFO L226 Difference]: Without dead ends: 3006 [2022-11-26 00:57:47,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:57:47,576 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 274 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1389 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 1418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:57:47,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 48 Invalid, 1418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1389 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:57:47,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3006 states. [2022-11-26 00:57:47,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3006 to 1578. [2022-11-26 00:57:47,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 3.437539632213063) internal successors, (5421), 1577 states have internal predecessors, (5421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:47,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 5421 transitions. [2022-11-26 00:57:47,610 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 5421 transitions. Word has length 33 [2022-11-26 00:57:47,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:57:47,611 INFO L495 AbstractCegarLoop]: Abstraction has 1578 states and 5421 transitions. [2022-11-26 00:57:47,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:47,611 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 5421 transitions. [2022-11-26 00:57:47,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:57:47,614 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:57:47,614 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:57:47,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2022-11-26 00:57:47,614 INFO L420 AbstractCegarLoop]: === Iteration 194 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:57:47,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:57:47,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1942420701, now seen corresponding path program 185 times [2022-11-26 00:57:47,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:57:47,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923939908] [2022-11-26 00:57:47,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:57:47,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:57:47,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:57:48,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:57:48,915 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:57:48,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923939908] [2022-11-26 00:57:48,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923939908] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:57:48,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:57:48,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:57:48,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477948724] [2022-11-26 00:57:48,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:57:48,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:57:48,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:57:48,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:57:48,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:57:48,916 INFO L87 Difference]: Start difference. First operand 1578 states and 5421 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:51,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:57:51,136 INFO L93 Difference]: Finished difference Result 3011 states and 9404 transitions. [2022-11-26 00:57:51,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:57:51,137 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:57:51,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:57:51,143 INFO L225 Difference]: With dead ends: 3011 [2022-11-26 00:57:51,143 INFO L226 Difference]: Without dead ends: 2994 [2022-11-26 00:57:51,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:57:51,143 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 241 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 1427 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 1456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:57:51,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 49 Invalid, 1456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1427 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:57:51,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2994 states. [2022-11-26 00:57:51,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2994 to 1576. [2022-11-26 00:57:51,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 3.438730158730159) internal successors, (5416), 1575 states have internal predecessors, (5416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:51,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 5416 transitions. [2022-11-26 00:57:51,177 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 5416 transitions. Word has length 33 [2022-11-26 00:57:51,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:57:51,177 INFO L495 AbstractCegarLoop]: Abstraction has 1576 states and 5416 transitions. [2022-11-26 00:57:51,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:51,177 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 5416 transitions. [2022-11-26 00:57:51,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:57:51,180 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:57:51,180 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:57:51,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2022-11-26 00:57:51,180 INFO L420 AbstractCegarLoop]: === Iteration 195 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:57:51,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:57:51,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1510101001, now seen corresponding path program 186 times [2022-11-26 00:57:51,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:57:51,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076496869] [2022-11-26 00:57:51,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:57:51,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:57:51,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:57:52,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:57:52,340 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:57:52,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076496869] [2022-11-26 00:57:52,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076496869] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:57:52,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:57:52,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:57:52,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299478020] [2022-11-26 00:57:52,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:57:52,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:57:52,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:57:52,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:57:52,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:57:52,341 INFO L87 Difference]: Start difference. First operand 1576 states and 5416 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:54,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:57:54,458 INFO L93 Difference]: Finished difference Result 3003 states and 9388 transitions. [2022-11-26 00:57:54,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:57:54,459 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:57:54,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:57:54,464 INFO L225 Difference]: With dead ends: 3003 [2022-11-26 00:57:54,465 INFO L226 Difference]: Without dead ends: 2990 [2022-11-26 00:57:54,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:57:54,465 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 220 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 1518 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 1547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:57:54,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 45 Invalid, 1547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1518 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:57:54,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2990 states. [2022-11-26 00:57:54,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2990 to 1580. [2022-11-26 00:57:54,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 3.434452184927169) internal successors, (5423), 1579 states have internal predecessors, (5423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:54,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 5423 transitions. [2022-11-26 00:57:54,519 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 5423 transitions. Word has length 33 [2022-11-26 00:57:54,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:57:54,519 INFO L495 AbstractCegarLoop]: Abstraction has 1580 states and 5423 transitions. [2022-11-26 00:57:54,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:54,519 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 5423 transitions. [2022-11-26 00:57:54,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:57:54,522 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:57:54,522 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:57:54,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2022-11-26 00:57:54,522 INFO L420 AbstractCegarLoop]: === Iteration 196 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:57:54,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:57:54,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1173925337, now seen corresponding path program 187 times [2022-11-26 00:57:54,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:57:54,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368689050] [2022-11-26 00:57:54,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:57:54,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:57:54,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:57:55,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:57:55,687 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:57:55,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368689050] [2022-11-26 00:57:55,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368689050] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:57:55,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:57:55,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:57:55,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366089401] [2022-11-26 00:57:55,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:57:55,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:57:55,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:57:55,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:57:55,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:57:55,688 INFO L87 Difference]: Start difference. First operand 1580 states and 5423 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:57,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:57:57,759 INFO L93 Difference]: Finished difference Result 2989 states and 9368 transitions. [2022-11-26 00:57:57,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:57:57,760 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:57:57,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:57:57,765 INFO L225 Difference]: With dead ends: 2989 [2022-11-26 00:57:57,765 INFO L226 Difference]: Without dead ends: 2964 [2022-11-26 00:57:57,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:57:57,766 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 222 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1376 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 1405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:57:57,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 43 Invalid, 1405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1376 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:57:57,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2964 states. [2022-11-26 00:57:57,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2964 to 1570. [2022-11-26 00:57:57,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1569 states have (on average 3.4448693435309115) internal successors, (5405), 1569 states have internal predecessors, (5405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:57,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 5405 transitions. [2022-11-26 00:57:57,795 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 5405 transitions. Word has length 33 [2022-11-26 00:57:57,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:57:57,795 INFO L495 AbstractCegarLoop]: Abstraction has 1570 states and 5405 transitions. [2022-11-26 00:57:57,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:57:57,795 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 5405 transitions. [2022-11-26 00:57:57,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:57:57,797 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:57:57,797 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:57:57,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2022-11-26 00:57:57,797 INFO L420 AbstractCegarLoop]: === Iteration 197 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:57:57,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:57:57,798 INFO L85 PathProgramCache]: Analyzing trace with hash 847621157, now seen corresponding path program 188 times [2022-11-26 00:57:57,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:57:57,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821877246] [2022-11-26 00:57:57,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:57:57,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:57:57,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:57:59,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:57:59,158 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:57:59,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821877246] [2022-11-26 00:57:59,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821877246] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:57:59,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:57:59,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:57:59,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841464684] [2022-11-26 00:57:59,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:57:59,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:57:59,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:57:59,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:57:59,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:57:59,159 INFO L87 Difference]: Start difference. First operand 1570 states and 5405 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:58:01,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:58:01,160 INFO L93 Difference]: Finished difference Result 3121 states and 9665 transitions. [2022-11-26 00:58:01,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:58:01,161 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:58:01,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:58:01,170 INFO L225 Difference]: With dead ends: 3121 [2022-11-26 00:58:01,170 INFO L226 Difference]: Without dead ends: 3100 [2022-11-26 00:58:01,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=158, Invalid=348, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:58:01,171 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 253 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 1382 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 1418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:58:01,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 41 Invalid, 1418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1382 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:58:01,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3100 states. [2022-11-26 00:58:01,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3100 to 1576. [2022-11-26 00:58:01,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 3.4438095238095237) internal successors, (5424), 1575 states have internal predecessors, (5424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:58:01,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 5424 transitions. [2022-11-26 00:58:01,227 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 5424 transitions. Word has length 33 [2022-11-26 00:58:01,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:58:01,227 INFO L495 AbstractCegarLoop]: Abstraction has 1576 states and 5424 transitions. [2022-11-26 00:58:01,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:58:01,227 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 5424 transitions. [2022-11-26 00:58:01,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:58:01,230 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:58:01,230 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:58:01,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2022-11-26 00:58:01,230 INFO L420 AbstractCegarLoop]: === Iteration 198 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:58:01,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:58:01,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1261843503, now seen corresponding path program 189 times [2022-11-26 00:58:01,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:58:01,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551929877] [2022-11-26 00:58:01,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:58:01,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:58:01,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:58:02,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:58:02,868 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:58:02,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551929877] [2022-11-26 00:58:02,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551929877] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:58:02,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:58:02,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:58:02,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271957486] [2022-11-26 00:58:02,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:58:02,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:58:02,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:58:02,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:58:02,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:58:02,869 INFO L87 Difference]: Start difference. First operand 1576 states and 5424 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:58:05,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:58:05,022 INFO L93 Difference]: Finished difference Result 3113 states and 9649 transitions. [2022-11-26 00:58:05,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:58:05,023 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:58:05,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:58:05,031 INFO L225 Difference]: With dead ends: 3113 [2022-11-26 00:58:05,031 INFO L226 Difference]: Without dead ends: 3102 [2022-11-26 00:58:05,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=158, Invalid=348, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:58:05,031 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 274 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 1386 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 1421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:58:05,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 55 Invalid, 1421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1386 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:58:05,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3102 states. [2022-11-26 00:58:05,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3102 to 1578. [2022-11-26 00:58:05,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 3.4413443246670896) internal successors, (5427), 1577 states have internal predecessors, (5427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:58:05,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 5427 transitions. [2022-11-26 00:58:05,072 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 5427 transitions. Word has length 33 [2022-11-26 00:58:05,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:58:05,073 INFO L495 AbstractCegarLoop]: Abstraction has 1578 states and 5427 transitions. [2022-11-26 00:58:05,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:58:05,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 5427 transitions. [2022-11-26 00:58:05,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:58:05,076 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:58:05,076 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:58:05,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2022-11-26 00:58:05,076 INFO L420 AbstractCegarLoop]: === Iteration 199 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:58:05,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:58:05,076 INFO L85 PathProgramCache]: Analyzing trace with hash -734491029, now seen corresponding path program 190 times [2022-11-26 00:58:05,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:58:05,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422408809] [2022-11-26 00:58:05,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:58:05,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:58:05,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:58:06,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:58:06,778 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:58:06,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422408809] [2022-11-26 00:58:06,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422408809] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:58:06,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:58:06,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:58:06,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812989337] [2022-11-26 00:58:06,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:58:06,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:58:06,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:58:06,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:58:06,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:58:06,780 INFO L87 Difference]: Start difference. First operand 1578 states and 5427 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:58:08,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:58:08,847 INFO L93 Difference]: Finished difference Result 3117 states and 9655 transitions. [2022-11-26 00:58:08,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:58:08,847 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:58:08,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:58:08,853 INFO L225 Difference]: With dead ends: 3117 [2022-11-26 00:58:08,853 INFO L226 Difference]: Without dead ends: 3098 [2022-11-26 00:58:08,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=158, Invalid=348, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:58:08,854 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 231 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 1502 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 1536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:58:08,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 55 Invalid, 1536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1502 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:58:08,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3098 states. [2022-11-26 00:58:08,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3098 to 1574. [2022-11-26 00:58:08,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 3.445009535918627) internal successors, (5419), 1573 states have internal predecessors, (5419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:58:08,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 5419 transitions. [2022-11-26 00:58:08,888 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 5419 transitions. Word has length 33 [2022-11-26 00:58:08,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:58:08,888 INFO L495 AbstractCegarLoop]: Abstraction has 1574 states and 5419 transitions. [2022-11-26 00:58:08,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:58:08,889 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 5419 transitions. [2022-11-26 00:58:08,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:58:08,891 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:58:08,891 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:58:08,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2022-11-26 00:58:08,891 INFO L420 AbstractCegarLoop]: === Iteration 200 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:58:08,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:58:08,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1405027545, now seen corresponding path program 191 times [2022-11-26 00:58:08,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:58:08,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089119481] [2022-11-26 00:58:08,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:58:08,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:58:08,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:58:10,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:58:10,139 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:58:10,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089119481] [2022-11-26 00:58:10,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089119481] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:58:10,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:58:10,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:58:10,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446177080] [2022-11-26 00:58:10,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:58:10,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:58:10,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:58:10,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:58:10,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:58:10,140 INFO L87 Difference]: Start difference. First operand 1574 states and 5419 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:58:12,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:58:12,345 INFO L93 Difference]: Finished difference Result 3151 states and 9729 transitions. [2022-11-26 00:58:12,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:58:12,346 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:58:12,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:58:12,352 INFO L225 Difference]: With dead ends: 3151 [2022-11-26 00:58:12,352 INFO L226 Difference]: Without dead ends: 3130 [2022-11-26 00:58:12,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:58:12,352 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 235 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 1529 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 1567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:58:12,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 46 Invalid, 1567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1529 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:58:12,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3130 states. [2022-11-26 00:58:12,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3130 to 1580. [2022-11-26 00:58:12,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 3.4388853704876503) internal successors, (5430), 1579 states have internal predecessors, (5430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:58:12,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 5430 transitions. [2022-11-26 00:58:12,385 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 5430 transitions. Word has length 33 [2022-11-26 00:58:12,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:58:12,385 INFO L495 AbstractCegarLoop]: Abstraction has 1580 states and 5430 transitions. [2022-11-26 00:58:12,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:58:12,385 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 5430 transitions. [2022-11-26 00:58:12,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:58:12,388 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:58:12,388 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:58:12,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2022-11-26 00:58:12,388 INFO L420 AbstractCegarLoop]: === Iteration 201 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:58:12,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:58:12,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1965710517, now seen corresponding path program 192 times [2022-11-26 00:58:12,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:58:12,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783304743] [2022-11-26 00:58:12,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:58:12,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:58:12,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:58:13,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:58:13,637 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:58:13,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783304743] [2022-11-26 00:58:13,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783304743] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:58:13,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:58:13,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:58:13,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156506944] [2022-11-26 00:58:13,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:58:13,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:58:13,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:58:13,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:58:13,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:58:13,638 INFO L87 Difference]: Start difference. First operand 1580 states and 5430 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:58:15,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:58:15,830 INFO L93 Difference]: Finished difference Result 3178 states and 9771 transitions. [2022-11-26 00:58:15,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-26 00:58:15,830 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:58:15,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:58:15,838 INFO L225 Difference]: With dead ends: 3178 [2022-11-26 00:58:15,838 INFO L226 Difference]: Without dead ends: 3128 [2022-11-26 00:58:15,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=202, Invalid=398, Unknown=0, NotChecked=0, Total=600 [2022-11-26 00:58:15,838 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 283 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 1426 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 1465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:58:15,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 41 Invalid, 1465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1426 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:58:15,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3128 states. [2022-11-26 00:58:15,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3128 to 1590. [2022-11-26 00:58:15,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1590 states, 1589 states have (on average 3.4304594084329767) internal successors, (5451), 1589 states have internal predecessors, (5451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:58:15,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1590 states to 1590 states and 5451 transitions. [2022-11-26 00:58:15,876 INFO L78 Accepts]: Start accepts. Automaton has 1590 states and 5451 transitions. Word has length 33 [2022-11-26 00:58:15,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:58:15,876 INFO L495 AbstractCegarLoop]: Abstraction has 1590 states and 5451 transitions. [2022-11-26 00:58:15,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:58:15,877 INFO L276 IsEmpty]: Start isEmpty. Operand 1590 states and 5451 transitions. [2022-11-26 00:58:15,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:58:15,879 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:58:15,879 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:58:15,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2022-11-26 00:58:15,879 INFO L420 AbstractCegarLoop]: === Iteration 202 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:58:15,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:58:15,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1055101785, now seen corresponding path program 193 times [2022-11-26 00:58:15,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:58:15,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492888395] [2022-11-26 00:58:15,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:58:15,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:58:15,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:58:17,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:58:17,207 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:58:17,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492888395] [2022-11-26 00:58:17,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492888395] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:58:17,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:58:17,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:58:17,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516540655] [2022-11-26 00:58:17,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:58:17,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:58:17,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:58:17,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:58:17,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:58:17,208 INFO L87 Difference]: Start difference. First operand 1590 states and 5451 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:58:19,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:58:19,362 INFO L93 Difference]: Finished difference Result 3143 states and 9706 transitions. [2022-11-26 00:58:19,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:58:19,362 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:58:19,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:58:19,369 INFO L225 Difference]: With dead ends: 3143 [2022-11-26 00:58:19,369 INFO L226 Difference]: Without dead ends: 3116 [2022-11-26 00:58:19,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=160, Invalid=346, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:58:19,369 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 221 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 1539 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 1574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:58:19,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 46 Invalid, 1574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1539 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:58:19,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-11-26 00:58:19,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 1578. [2022-11-26 00:58:19,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 3.4413443246670896) internal successors, (5427), 1577 states have internal predecessors, (5427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:58:19,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 5427 transitions. [2022-11-26 00:58:19,400 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 5427 transitions. Word has length 33 [2022-11-26 00:58:19,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:58:19,401 INFO L495 AbstractCegarLoop]: Abstraction has 1578 states and 5427 transitions. [2022-11-26 00:58:19,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:58:19,401 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 5427 transitions. [2022-11-26 00:58:19,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:58:19,403 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:58:19,403 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:58:19,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2022-11-26 00:58:19,403 INFO L420 AbstractCegarLoop]: === Iteration 203 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:58:19,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:58:19,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1670474797, now seen corresponding path program 194 times [2022-11-26 00:58:19,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:58:19,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762063964] [2022-11-26 00:58:19,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:58:19,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:58:19,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:58:20,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:58:20,631 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:58:20,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762063964] [2022-11-26 00:58:20,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762063964] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:58:20,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:58:20,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:58:20,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796863596] [2022-11-26 00:58:20,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:58:20,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:58:20,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:58:20,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:58:20,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:58:20,632 INFO L87 Difference]: Start difference. First operand 1578 states and 5427 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:58:23,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:58:23,123 INFO L93 Difference]: Finished difference Result 3156 states and 9717 transitions. [2022-11-26 00:58:23,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-26 00:58:23,123 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:58:23,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:58:23,129 INFO L225 Difference]: With dead ends: 3156 [2022-11-26 00:58:23,129 INFO L226 Difference]: Without dead ends: 3134 [2022-11-26 00:58:23,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=220, Invalid=430, Unknown=0, NotChecked=0, Total=650 [2022-11-26 00:58:23,130 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 286 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 1437 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 1473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:58:23,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 54 Invalid, 1473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1437 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:58:23,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3134 states. [2022-11-26 00:58:23,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3134 to 1584. [2022-11-26 00:58:23,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1584 states, 1583 states have (on average 3.437776373973468) internal successors, (5442), 1583 states have internal predecessors, (5442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:58:23,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 5442 transitions. [2022-11-26 00:58:23,163 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 5442 transitions. Word has length 33 [2022-11-26 00:58:23,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:58:23,163 INFO L495 AbstractCegarLoop]: Abstraction has 1584 states and 5442 transitions. [2022-11-26 00:58:23,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:58:23,163 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 5442 transitions. [2022-11-26 00:58:23,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:58:23,167 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:58:23,167 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:58:23,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2022-11-26 00:58:23,167 INFO L420 AbstractCegarLoop]: === Iteration 204 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:58:23,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:58:23,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1018803093, now seen corresponding path program 195 times [2022-11-26 00:58:23,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:58:23,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125539401] [2022-11-26 00:58:23,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:58:23,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:58:23,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:58:24,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:58:24,486 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:58:24,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125539401] [2022-11-26 00:58:24,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125539401] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:58:24,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:58:24,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:58:24,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616300662] [2022-11-26 00:58:24,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:58:24,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:58:24,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:58:24,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:58:24,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:58:24,488 INFO L87 Difference]: Start difference. First operand 1584 states and 5442 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:58:27,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:58:27,102 INFO L93 Difference]: Finished difference Result 3176 states and 9752 transitions. [2022-11-26 00:58:27,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-26 00:58:27,103 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:58:27,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:58:27,110 INFO L225 Difference]: With dead ends: 3176 [2022-11-26 00:58:27,110 INFO L226 Difference]: Without dead ends: 3126 [2022-11-26 00:58:27,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=221, Invalid=429, Unknown=0, NotChecked=0, Total=650 [2022-11-26 00:58:27,111 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 283 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 1371 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 1408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:58:27,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 46 Invalid, 1408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1371 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:58:27,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3126 states. [2022-11-26 00:58:27,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3126 to 1578. [2022-11-26 00:58:27,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 3.4413443246670896) internal successors, (5427), 1577 states have internal predecessors, (5427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:58:27,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 5427 transitions. [2022-11-26 00:58:27,151 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 5427 transitions. Word has length 33 [2022-11-26 00:58:27,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:58:27,151 INFO L495 AbstractCegarLoop]: Abstraction has 1578 states and 5427 transitions. [2022-11-26 00:58:27,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:58:27,151 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 5427 transitions. [2022-11-26 00:58:27,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:58:27,154 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:58:27,154 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:58:27,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2022-11-26 00:58:27,154 INFO L420 AbstractCegarLoop]: === Iteration 205 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:58:27,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:58:27,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1693199023, now seen corresponding path program 196 times [2022-11-26 00:58:27,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:58:27,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134742575] [2022-11-26 00:58:27,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:58:27,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:58:27,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:58:28,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:58:28,450 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:58:28,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134742575] [2022-11-26 00:58:28,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134742575] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:58:28,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:58:28,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:58:28,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005132437] [2022-11-26 00:58:28,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:58:28,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:58:28,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:58:28,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:58:28,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:58:28,451 INFO L87 Difference]: Start difference. First operand 1578 states and 5427 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:58:30,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:58:30,870 INFO L93 Difference]: Finished difference Result 3129 states and 9670 transitions. [2022-11-26 00:58:30,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:58:30,870 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:58:30,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:58:30,878 INFO L225 Difference]: With dead ends: 3129 [2022-11-26 00:58:30,878 INFO L226 Difference]: Without dead ends: 3118 [2022-11-26 00:58:30,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:58:30,878 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 270 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 1418 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 1451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:58:30,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 52 Invalid, 1451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1418 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:58:30,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3118 states. [2022-11-26 00:58:30,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3118 to 1580. [2022-11-26 00:58:30,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 3.4388853704876503) internal successors, (5430), 1579 states have internal predecessors, (5430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:58:30,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 5430 transitions. [2022-11-26 00:58:30,943 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 5430 transitions. Word has length 33 [2022-11-26 00:58:30,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:58:30,943 INFO L495 AbstractCegarLoop]: Abstraction has 1580 states and 5430 transitions. [2022-11-26 00:58:30,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:58:30,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 5430 transitions. [2022-11-26 00:58:30,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:58:30,946 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:58:30,946 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:58:30,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2022-11-26 00:58:30,946 INFO L420 AbstractCegarLoop]: === Iteration 206 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:58:30,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:58:30,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1165846549, now seen corresponding path program 197 times [2022-11-26 00:58:30,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:58:30,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300853916] [2022-11-26 00:58:30,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:58:30,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:58:30,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:58:32,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:58:32,357 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:58:32,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300853916] [2022-11-26 00:58:32,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300853916] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:58:32,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:58:32,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:58:32,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94712659] [2022-11-26 00:58:32,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:58:32,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:58:32,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:58:32,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:58:32,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:58:32,359 INFO L87 Difference]: Start difference. First operand 1580 states and 5430 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:58:34,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:58:34,579 INFO L93 Difference]: Finished difference Result 3123 states and 9667 transitions. [2022-11-26 00:58:34,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:58:34,580 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:58:34,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:58:34,586 INFO L225 Difference]: With dead ends: 3123 [2022-11-26 00:58:34,586 INFO L226 Difference]: Without dead ends: 3106 [2022-11-26 00:58:34,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:58:34,586 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 238 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 1464 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 1497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:58:34,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 52 Invalid, 1497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1464 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:58:34,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3106 states. [2022-11-26 00:58:34,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3106 to 1578. [2022-11-26 00:58:34,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 3.4400760938490804) internal successors, (5425), 1577 states have internal predecessors, (5425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:58:34,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 5425 transitions. [2022-11-26 00:58:34,617 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 5425 transitions. Word has length 33 [2022-11-26 00:58:34,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:58:34,618 INFO L495 AbstractCegarLoop]: Abstraction has 1578 states and 5425 transitions. [2022-11-26 00:58:34,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:58:34,618 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 5425 transitions. [2022-11-26 00:58:34,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:58:34,622 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:58:34,622 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:58:34,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2022-11-26 00:58:34,622 INFO L420 AbstractCegarLoop]: === Iteration 207 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:58:34,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:58:34,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1850745583, now seen corresponding path program 198 times [2022-11-26 00:58:34,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:58:34,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497803873] [2022-11-26 00:58:34,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:58:34,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:58:34,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:58:36,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:58:36,128 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:58:36,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497803873] [2022-11-26 00:58:36,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497803873] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:58:36,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:58:36,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:58:36,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886207255] [2022-11-26 00:58:36,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:58:36,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:58:36,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:58:36,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:58:36,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:58:36,130 INFO L87 Difference]: Start difference. First operand 1578 states and 5425 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:58:38,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:58:38,446 INFO L93 Difference]: Finished difference Result 3139 states and 9692 transitions. [2022-11-26 00:58:38,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:58:38,447 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:58:38,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:58:38,453 INFO L225 Difference]: With dead ends: 3139 [2022-11-26 00:58:38,453 INFO L226 Difference]: Without dead ends: 3122 [2022-11-26 00:58:38,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=161, Invalid=345, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:58:38,454 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 244 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1468 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 1501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:58:38,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 44 Invalid, 1501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1468 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:58:38,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3122 states. [2022-11-26 00:58:38,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3122 to 1584. [2022-11-26 00:58:38,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1584 states, 1583 states have (on average 3.433986102337334) internal successors, (5436), 1583 states have internal predecessors, (5436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:58:38,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 5436 transitions. [2022-11-26 00:58:38,489 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 5436 transitions. Word has length 33 [2022-11-26 00:58:38,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:58:38,489 INFO L495 AbstractCegarLoop]: Abstraction has 1584 states and 5436 transitions. [2022-11-26 00:58:38,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:58:38,489 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 5436 transitions. [2022-11-26 00:58:38,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:58:38,491 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:58:38,491 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:58:38,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2022-11-26 00:58:38,492 INFO L420 AbstractCegarLoop]: === Iteration 208 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:58:38,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:58:38,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1365884781, now seen corresponding path program 199 times [2022-11-26 00:58:38,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:58:38,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423260147] [2022-11-26 00:58:38,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:58:38,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:58:38,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:58:39,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:58:39,798 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:58:39,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423260147] [2022-11-26 00:58:39,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423260147] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:58:39,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:58:39,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:58:39,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676309331] [2022-11-26 00:58:39,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:58:39,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:58:39,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:58:39,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:58:39,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:58:39,800 INFO L87 Difference]: Start difference. First operand 1584 states and 5436 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:58:42,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:58:42,222 INFO L93 Difference]: Finished difference Result 3127 states and 9673 transitions. [2022-11-26 00:58:42,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:58:42,223 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:58:42,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:58:42,232 INFO L225 Difference]: With dead ends: 3127 [2022-11-26 00:58:42,232 INFO L226 Difference]: Without dead ends: 3102 [2022-11-26 00:58:42,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=160, Invalid=346, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:58:42,233 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 221 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1476 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 1509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:58:42,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 43 Invalid, 1509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1476 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-26 00:58:42,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3102 states. [2022-11-26 00:58:42,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3102 to 1574. [2022-11-26 00:58:42,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 3.4437380801017166) internal successors, (5417), 1573 states have internal predecessors, (5417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:58:42,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 5417 transitions. [2022-11-26 00:58:42,276 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 5417 transitions. Word has length 33 [2022-11-26 00:58:42,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:58:42,276 INFO L495 AbstractCegarLoop]: Abstraction has 1574 states and 5417 transitions. [2022-11-26 00:58:42,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:58:42,276 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 5417 transitions. [2022-11-26 00:58:42,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:58:42,279 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:58:42,279 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:58:42,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2022-11-26 00:58:42,279 INFO L420 AbstractCegarLoop]: === Iteration 209 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:58:42,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:58:42,280 INFO L85 PathProgramCache]: Analyzing trace with hash -265011869, now seen corresponding path program 200 times [2022-11-26 00:58:42,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:58:42,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268461758] [2022-11-26 00:58:42,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:58:42,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:58:42,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:58:43,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:58:43,728 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:58:43,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268461758] [2022-11-26 00:58:43,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268461758] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:58:43,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:58:43,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:58:43,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096385983] [2022-11-26 00:58:43,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:58:43,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:58:43,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:58:43,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:58:43,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:58:43,730 INFO L87 Difference]: Start difference. First operand 1574 states and 5417 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:58:46,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:58:46,145 INFO L93 Difference]: Finished difference Result 3105 states and 9628 transitions. [2022-11-26 00:58:46,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:58:46,146 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:58:46,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:58:46,154 INFO L225 Difference]: With dead ends: 3105 [2022-11-26 00:58:46,154 INFO L226 Difference]: Without dead ends: 3084 [2022-11-26 00:58:46,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:58:46,154 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 255 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 1421 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 1454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:58:46,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 38 Invalid, 1454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1421 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-26 00:58:46,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3084 states. [2022-11-26 00:58:46,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3084 to 1578. [2022-11-26 00:58:46,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 3.4413443246670896) internal successors, (5427), 1577 states have internal predecessors, (5427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:58:46,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 5427 transitions. [2022-11-26 00:58:46,198 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 5427 transitions. Word has length 33 [2022-11-26 00:58:46,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:58:46,198 INFO L495 AbstractCegarLoop]: Abstraction has 1578 states and 5427 transitions. [2022-11-26 00:58:46,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:58:46,199 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 5427 transitions. [2022-11-26 00:58:46,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:58:46,202 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:58:46,202 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:58:46,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2022-11-26 00:58:46,203 INFO L420 AbstractCegarLoop]: === Iteration 210 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:58:46,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:58:46,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1920490767, now seen corresponding path program 201 times [2022-11-26 00:58:46,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:58:46,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616697038] [2022-11-26 00:58:46,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:58:46,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:58:46,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:58:47,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:58:47,581 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:58:47,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616697038] [2022-11-26 00:58:47,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616697038] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:58:47,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:58:47,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:58:47,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948624595] [2022-11-26 00:58:47,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:58:47,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:58:47,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:58:47,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:58:47,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:58:47,582 INFO L87 Difference]: Start difference. First operand 1578 states and 5427 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:58:50,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:58:50,165 INFO L93 Difference]: Finished difference Result 3097 states and 9612 transitions. [2022-11-26 00:58:50,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:58:50,166 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:58:50,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:58:50,173 INFO L225 Difference]: With dead ends: 3097 [2022-11-26 00:58:50,173 INFO L226 Difference]: Without dead ends: 3086 [2022-11-26 00:58:50,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:58:50,174 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 279 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 1417 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 1449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:58:50,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 45 Invalid, 1449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1417 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-26 00:58:50,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3086 states. [2022-11-26 00:58:50,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3086 to 1580. [2022-11-26 00:58:50,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 3.4388853704876503) internal successors, (5430), 1579 states have internal predecessors, (5430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:58:50,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 5430 transitions. [2022-11-26 00:58:50,215 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 5430 transitions. Word has length 33 [2022-11-26 00:58:50,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:58:50,215 INFO L495 AbstractCegarLoop]: Abstraction has 1580 states and 5430 transitions. [2022-11-26 00:58:50,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:58:50,216 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 5430 transitions. [2022-11-26 00:58:50,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:58:50,218 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:58:50,218 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:58:50,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2022-11-26 00:58:50,219 INFO L420 AbstractCegarLoop]: === Iteration 211 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:58:50,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:58:50,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1847124055, now seen corresponding path program 202 times [2022-11-26 00:58:50,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:58:50,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566919730] [2022-11-26 00:58:50,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:58:50,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:58:50,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:58:51,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:58:51,729 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:58:51,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566919730] [2022-11-26 00:58:51,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566919730] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:58:51,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:58:51,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:58:51,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398906452] [2022-11-26 00:58:51,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:58:51,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:58:51,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:58:51,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:58:51,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:58:51,730 INFO L87 Difference]: Start difference. First operand 1580 states and 5430 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:58:54,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:58:54,075 INFO L93 Difference]: Finished difference Result 3101 states and 9618 transitions. [2022-11-26 00:58:54,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:58:54,076 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:58:54,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:58:54,082 INFO L225 Difference]: With dead ends: 3101 [2022-11-26 00:58:54,082 INFO L226 Difference]: Without dead ends: 3082 [2022-11-26 00:58:54,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:58:54,082 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 278 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1376 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 1407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:58:54,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 43 Invalid, 1407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1376 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:58:54,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3082 states. [2022-11-26 00:58:54,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3082 to 1576. [2022-11-26 00:58:54,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 3.4425396825396826) internal successors, (5422), 1575 states have internal predecessors, (5422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:58:54,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 5422 transitions. [2022-11-26 00:58:54,116 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 5422 transitions. Word has length 33 [2022-11-26 00:58:54,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:58:54,116 INFO L495 AbstractCegarLoop]: Abstraction has 1576 states and 5422 transitions. [2022-11-26 00:58:54,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:58:54,117 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 5422 transitions. [2022-11-26 00:58:54,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:58:54,119 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:58:54,119 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:58:54,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2022-11-26 00:58:54,119 INFO L420 AbstractCegarLoop]: === Iteration 212 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:58:54,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:58:54,119 INFO L85 PathProgramCache]: Analyzing trace with hash -475341977, now seen corresponding path program 203 times [2022-11-26 00:58:54,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:58:54,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785589533] [2022-11-26 00:58:54,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:58:54,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:58:54,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:58:55,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:58:55,416 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:58:55,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785589533] [2022-11-26 00:58:55,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785589533] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:58:55,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:58:55,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:58:55,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792318273] [2022-11-26 00:58:55,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:58:55,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:58:55,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:58:55,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:58:55,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:58:55,417 INFO L87 Difference]: Start difference. First operand 1576 states and 5422 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:58:57,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:58:57,749 INFO L93 Difference]: Finished difference Result 3105 states and 9631 transitions. [2022-11-26 00:58:57,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:58:57,750 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:58:57,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:58:57,755 INFO L225 Difference]: With dead ends: 3105 [2022-11-26 00:58:57,755 INFO L226 Difference]: Without dead ends: 3084 [2022-11-26 00:58:57,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:58:57,756 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 251 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 1467 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 1500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:58:57,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 34 Invalid, 1500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1467 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-26 00:58:57,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3084 states. [2022-11-26 00:58:57,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3084 to 1580. [2022-11-26 00:58:57,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 3.4382520582647245) internal successors, (5429), 1579 states have internal predecessors, (5429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:58:57,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 5429 transitions. [2022-11-26 00:58:57,786 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 5429 transitions. Word has length 33 [2022-11-26 00:58:57,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:58:57,787 INFO L495 AbstractCegarLoop]: Abstraction has 1580 states and 5429 transitions. [2022-11-26 00:58:57,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:58:57,787 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 5429 transitions. [2022-11-26 00:58:57,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:58:57,790 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:58:57,790 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:58:57,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2022-11-26 00:58:57,790 INFO L420 AbstractCegarLoop]: === Iteration 213 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:58:57,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:58:57,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1750354889, now seen corresponding path program 204 times [2022-11-26 00:58:57,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:58:57,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495895087] [2022-11-26 00:58:57,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:58:57,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:58:57,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:58:59,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:58:59,127 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:58:59,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495895087] [2022-11-26 00:58:59,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495895087] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:58:59,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:58:59,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:58:59,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710384489] [2022-11-26 00:58:59,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:58:59,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:58:59,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:58:59,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:58:59,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:58:59,128 INFO L87 Difference]: Start difference. First operand 1580 states and 5429 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:59:01,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:59:01,277 INFO L93 Difference]: Finished difference Result 3101 states and 9623 transitions. [2022-11-26 00:59:01,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:59:01,277 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:59:01,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:59:01,284 INFO L225 Difference]: With dead ends: 3101 [2022-11-26 00:59:01,284 INFO L226 Difference]: Without dead ends: 3088 [2022-11-26 00:59:01,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:59:01,284 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 286 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 1380 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 1412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:59:01,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 34 Invalid, 1412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1380 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:59:01,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3088 states. [2022-11-26 00:59:01,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3088 to 1584. [2022-11-26 00:59:01,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1584 states, 1583 states have (on average 3.433986102337334) internal successors, (5436), 1583 states have internal predecessors, (5436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:59:01,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 5436 transitions. [2022-11-26 00:59:01,320 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 5436 transitions. Word has length 33 [2022-11-26 00:59:01,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:59:01,320 INFO L495 AbstractCegarLoop]: Abstraction has 1584 states and 5436 transitions. [2022-11-26 00:59:01,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:59:01,320 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 5436 transitions. [2022-11-26 00:59:01,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:59:01,322 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:59:01,323 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:59:01,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2022-11-26 00:59:01,323 INFO L420 AbstractCegarLoop]: === Iteration 214 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:59:01,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:59:01,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1689305753, now seen corresponding path program 205 times [2022-11-26 00:59:01,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:59:01,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662424867] [2022-11-26 00:59:01,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:59:01,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:59:01,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:59:02,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:59:02,786 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:59:02,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662424867] [2022-11-26 00:59:02,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662424867] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:59:02,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:59:02,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:59:02,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407565642] [2022-11-26 00:59:02,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:59:02,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:59:02,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:59:02,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:59:02,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:59:02,788 INFO L87 Difference]: Start difference. First operand 1584 states and 5436 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:59:05,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:59:05,160 INFO L93 Difference]: Finished difference Result 3087 states and 9603 transitions. [2022-11-26 00:59:05,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:59:05,161 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:59:05,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:59:05,167 INFO L225 Difference]: With dead ends: 3087 [2022-11-26 00:59:05,167 INFO L226 Difference]: Without dead ends: 3064 [2022-11-26 00:59:05,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:59:05,168 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 222 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 1472 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 1503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:59:05,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 37 Invalid, 1503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1472 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-26 00:59:05,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3064 states. [2022-11-26 00:59:05,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3064 to 1576. [2022-11-26 00:59:05,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 3.4412698412698415) internal successors, (5420), 1575 states have internal predecessors, (5420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:59:05,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 5420 transitions. [2022-11-26 00:59:05,206 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 5420 transitions. Word has length 33 [2022-11-26 00:59:05,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:59:05,206 INFO L495 AbstractCegarLoop]: Abstraction has 1576 states and 5420 transitions. [2022-11-26 00:59:05,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:59:05,206 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 5420 transitions. [2022-11-26 00:59:05,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:59:05,209 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:59:05,209 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:59:05,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2022-11-26 00:59:05,209 INFO L420 AbstractCegarLoop]: === Iteration 215 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:59:05,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:59:05,210 INFO L85 PathProgramCache]: Analyzing trace with hash 2011184301, now seen corresponding path program 206 times [2022-11-26 00:59:05,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:59:05,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101449673] [2022-11-26 00:59:05,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:59:05,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:59:05,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:59:06,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:59:06,633 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:59:06,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101449673] [2022-11-26 00:59:06,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101449673] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:59:06,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:59:06,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:59:06,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109886259] [2022-11-26 00:59:06,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:59:06,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:59:06,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:59:06,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:59:06,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:59:06,635 INFO L87 Difference]: Start difference. First operand 1576 states and 5420 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:59:08,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:59:08,877 INFO L93 Difference]: Finished difference Result 3093 states and 9608 transitions. [2022-11-26 00:59:08,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:59:08,877 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:59:08,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:59:08,883 INFO L225 Difference]: With dead ends: 3093 [2022-11-26 00:59:08,883 INFO L226 Difference]: Without dead ends: 3082 [2022-11-26 00:59:08,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:59:08,883 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 275 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 1407 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 1438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:59:08,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 37 Invalid, 1438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1407 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:59:08,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3082 states. [2022-11-26 00:59:08,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3082 to 1580. [2022-11-26 00:59:08,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 3.4388853704876503) internal successors, (5430), 1579 states have internal predecessors, (5430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:59:08,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 5430 transitions. [2022-11-26 00:59:08,913 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 5430 transitions. Word has length 33 [2022-11-26 00:59:08,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:59:08,913 INFO L495 AbstractCegarLoop]: Abstraction has 1580 states and 5430 transitions. [2022-11-26 00:59:08,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:59:08,913 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 5430 transitions. [2022-11-26 00:59:08,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:59:08,915 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:59:08,915 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:59:08,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2022-11-26 00:59:08,915 INFO L420 AbstractCegarLoop]: === Iteration 216 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:59:08,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:59:08,916 INFO L85 PathProgramCache]: Analyzing trace with hash 927595817, now seen corresponding path program 207 times [2022-11-26 00:59:08,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:59:08,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30112939] [2022-11-26 00:59:08,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:59:08,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:59:08,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:59:10,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:59:10,243 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:59:10,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30112939] [2022-11-26 00:59:10,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30112939] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:59:10,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:59:10,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:59:10,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814977711] [2022-11-26 00:59:10,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:59:10,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:59:10,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:59:10,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:59:10,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:59:10,244 INFO L87 Difference]: Start difference. First operand 1580 states and 5430 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:59:12,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:59:12,375 INFO L93 Difference]: Finished difference Result 3095 states and 9610 transitions. [2022-11-26 00:59:12,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:59:12,376 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:59:12,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:59:12,382 INFO L225 Difference]: With dead ends: 3095 [2022-11-26 00:59:12,382 INFO L226 Difference]: Without dead ends: 3080 [2022-11-26 00:59:12,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:59:12,382 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 289 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 1389 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 1420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:59:12,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 31 Invalid, 1420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1389 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:59:12,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3080 states. [2022-11-26 00:59:12,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3080 to 1578. [2022-11-26 00:59:12,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 3.4400760938490804) internal successors, (5425), 1577 states have internal predecessors, (5425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:59:12,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 5425 transitions. [2022-11-26 00:59:12,415 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 5425 transitions. Word has length 33 [2022-11-26 00:59:12,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:59:12,415 INFO L495 AbstractCegarLoop]: Abstraction has 1578 states and 5425 transitions. [2022-11-26 00:59:12,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:59:12,416 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 5425 transitions. [2022-11-26 00:59:12,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:59:12,418 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:59:12,418 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:59:12,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2022-11-26 00:59:12,418 INFO L420 AbstractCegarLoop]: === Iteration 217 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:59:12,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:59:12,419 INFO L85 PathProgramCache]: Analyzing trace with hash 410746447, now seen corresponding path program 208 times [2022-11-26 00:59:12,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:59:12,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709170700] [2022-11-26 00:59:12,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:59:12,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:59:12,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:59:13,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:59:13,637 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:59:13,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709170700] [2022-11-26 00:59:13,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709170700] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:59:13,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:59:13,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:59:13,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317683588] [2022-11-26 00:59:13,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:59:13,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:59:13,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:59:13,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:59:13,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:59:13,638 INFO L87 Difference]: Start difference. First operand 1578 states and 5425 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:59:16,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:59:16,004 INFO L93 Difference]: Finished difference Result 3105 states and 9618 transitions. [2022-11-26 00:59:16,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:59:16,004 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:59:16,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:59:16,011 INFO L225 Difference]: With dead ends: 3105 [2022-11-26 00:59:16,011 INFO L226 Difference]: Without dead ends: 3094 [2022-11-26 00:59:16,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:59:16,012 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 304 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 1391 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 1421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:59:16,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 46 Invalid, 1421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1391 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:59:16,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3094 states. [2022-11-26 00:59:16,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3094 to 1580. [2022-11-26 00:59:16,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 3.4376187460417986) internal successors, (5428), 1579 states have internal predecessors, (5428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:59:16,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 5428 transitions. [2022-11-26 00:59:16,052 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 5428 transitions. Word has length 33 [2022-11-26 00:59:16,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:59:16,052 INFO L495 AbstractCegarLoop]: Abstraction has 1580 states and 5428 transitions. [2022-11-26 00:59:16,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:59:16,052 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 5428 transitions. [2022-11-26 00:59:16,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:59:16,055 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:59:16,055 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:59:16,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2022-11-26 00:59:16,055 INFO L420 AbstractCegarLoop]: === Iteration 218 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:59:16,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:59:16,055 INFO L85 PathProgramCache]: Analyzing trace with hash 938098921, now seen corresponding path program 209 times [2022-11-26 00:59:16,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:59:16,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877080110] [2022-11-26 00:59:16,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:59:16,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:59:16,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:59:17,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:59:17,531 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:59:17,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877080110] [2022-11-26 00:59:17,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877080110] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:59:17,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:59:17,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:59:17,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923354526] [2022-11-26 00:59:17,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:59:17,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:59:17,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:59:17,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:59:17,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:59:17,532 INFO L87 Difference]: Start difference. First operand 1580 states and 5428 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:59:19,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:59:19,720 INFO L93 Difference]: Finished difference Result 3099 states and 9615 transitions. [2022-11-26 00:59:19,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:59:19,720 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:59:19,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:59:19,728 INFO L225 Difference]: With dead ends: 3099 [2022-11-26 00:59:19,728 INFO L226 Difference]: Without dead ends: 3082 [2022-11-26 00:59:19,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:59:19,728 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 281 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 1379 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 1409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:59:19,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 41 Invalid, 1409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1379 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:59:19,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3082 states. [2022-11-26 00:59:19,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3082 to 1578. [2022-11-26 00:59:19,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1577 states have (on average 3.4388078630310717) internal successors, (5423), 1577 states have internal predecessors, (5423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:59:19,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 5423 transitions. [2022-11-26 00:59:19,794 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 5423 transitions. Word has length 33 [2022-11-26 00:59:19,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:59:19,794 INFO L495 AbstractCegarLoop]: Abstraction has 1578 states and 5423 transitions. [2022-11-26 00:59:19,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:59:19,794 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 5423 transitions. [2022-11-26 00:59:19,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:59:19,797 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:59:19,797 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:59:19,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2022-11-26 00:59:19,798 INFO L420 AbstractCegarLoop]: === Iteration 219 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:59:19,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:59:19,799 INFO L85 PathProgramCache]: Analyzing trace with hash 95653327, now seen corresponding path program 210 times [2022-11-26 00:59:19,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:59:19,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510508050] [2022-11-26 00:59:19,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:59:19,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:59:19,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:59:21,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:59:21,117 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:59:21,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510508050] [2022-11-26 00:59:21,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510508050] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:59:21,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:59:21,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:59:21,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788283262] [2022-11-26 00:59:21,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:59:21,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:59:21,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:59:21,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:59:21,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:59:21,119 INFO L87 Difference]: Start difference. First operand 1578 states and 5423 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:59:23,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:59:23,082 INFO L93 Difference]: Finished difference Result 3099 states and 9617 transitions. [2022-11-26 00:59:23,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:59:23,083 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:59:23,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:59:23,088 INFO L225 Difference]: With dead ends: 3099 [2022-11-26 00:59:23,088 INFO L226 Difference]: Without dead ends: 3086 [2022-11-26 00:59:23,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:59:23,088 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 289 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 1377 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 1407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:59:23,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 36 Invalid, 1407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1377 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:59:23,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3086 states. [2022-11-26 00:59:23,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3086 to 1582. [2022-11-26 00:59:23,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1582 states, 1581 states have (on average 3.4345351043643264) internal successors, (5430), 1581 states have internal predecessors, (5430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:59:23,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 5430 transitions. [2022-11-26 00:59:23,116 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 5430 transitions. Word has length 33 [2022-11-26 00:59:23,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:59:23,116 INFO L495 AbstractCegarLoop]: Abstraction has 1582 states and 5430 transitions. [2022-11-26 00:59:23,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:59:23,116 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 5430 transitions. [2022-11-26 00:59:23,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:59:23,118 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:59:23,119 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:59:23,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2022-11-26 00:59:23,119 INFO L420 AbstractCegarLoop]: === Iteration 220 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:59:23,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:59:23,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1706594285, now seen corresponding path program 211 times [2022-11-26 00:59:23,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:59:23,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286411006] [2022-11-26 00:59:23,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:59:23,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:59:23,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:59:24,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:59:24,389 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:59:24,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286411006] [2022-11-26 00:59:24,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286411006] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:59:24,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:59:24,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:59:24,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334542123] [2022-11-26 00:59:24,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:59:24,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:59:24,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:59:24,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:59:24,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:59:24,390 INFO L87 Difference]: Start difference. First operand 1582 states and 5430 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:59:26,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:59:26,577 INFO L93 Difference]: Finished difference Result 3085 states and 9597 transitions. [2022-11-26 00:59:26,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:59:26,578 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:59:26,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:59:26,584 INFO L225 Difference]: With dead ends: 3085 [2022-11-26 00:59:26,584 INFO L226 Difference]: Without dead ends: 3062 [2022-11-26 00:59:26,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:59:26,584 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 230 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 1441 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 1471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:59:26,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 39 Invalid, 1471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1441 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:59:26,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3062 states. [2022-11-26 00:59:26,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3062 to 1574. [2022-11-26 00:59:26,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 3.442466624284806) internal successors, (5415), 1573 states have internal predecessors, (5415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:59:26,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 5415 transitions. [2022-11-26 00:59:26,623 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 5415 transitions. Word has length 33 [2022-11-26 00:59:26,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:59:26,623 INFO L495 AbstractCegarLoop]: Abstraction has 1574 states and 5415 transitions. [2022-11-26 00:59:26,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:59:26,624 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 5415 transitions. [2022-11-26 00:59:26,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:59:26,626 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:59:26,626 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:59:26,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2022-11-26 00:59:26,627 INFO L420 AbstractCegarLoop]: === Iteration 221 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:59:26,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:59:26,627 INFO L85 PathProgramCache]: Analyzing trace with hash 664673699, now seen corresponding path program 212 times [2022-11-26 00:59:26,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:59:26,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032903127] [2022-11-26 00:59:26,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:59:26,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:59:26,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:59:27,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:59:27,989 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:59:27,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032903127] [2022-11-26 00:59:27,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032903127] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:59:27,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:59:27,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:59:27,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903517430] [2022-11-26 00:59:27,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:59:27,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:59:27,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:59:27,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:59:27,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:59:27,991 INFO L87 Difference]: Start difference. First operand 1574 states and 5415 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:59:30,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:59:30,150 INFO L93 Difference]: Finished difference Result 3077 states and 9573 transitions. [2022-11-26 00:59:30,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-26 00:59:30,150 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:59:30,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:59:30,155 INFO L225 Difference]: With dead ends: 3077 [2022-11-26 00:59:30,156 INFO L226 Difference]: Without dead ends: 3056 [2022-11-26 00:59:30,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:59:30,156 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 266 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 1254 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 1291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:59:30,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 20 Invalid, 1291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1254 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:59:30,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3056 states. [2022-11-26 00:59:30,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3056 to 1584. [2022-11-26 00:59:30,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1584 states, 1583 states have (on average 3.4371446620341124) internal successors, (5441), 1583 states have internal predecessors, (5441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:59:30,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 5441 transitions. [2022-11-26 00:59:30,189 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 5441 transitions. Word has length 33 [2022-11-26 00:59:30,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:59:30,189 INFO L495 AbstractCegarLoop]: Abstraction has 1584 states and 5441 transitions. [2022-11-26 00:59:30,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:59:30,189 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 5441 transitions. [2022-11-26 00:59:30,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:59:30,191 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:59:30,191 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:59:30,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2022-11-26 00:59:30,192 INFO L420 AbstractCegarLoop]: === Iteration 222 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:59:30,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:59:30,192 INFO L85 PathProgramCache]: Analyzing trace with hash 103990727, now seen corresponding path program 213 times [2022-11-26 00:59:30,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:59:30,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42401999] [2022-11-26 00:59:30,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:59:30,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:59:30,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:59:31,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:59:31,404 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:59:31,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42401999] [2022-11-26 00:59:31,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42401999] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:59:31,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:59:31,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:59:31,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644087485] [2022-11-26 00:59:31,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:59:31,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:59:31,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:59:31,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:59:31,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:59:31,405 INFO L87 Difference]: Start difference. First operand 1584 states and 5441 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:59:33,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:59:33,458 INFO L93 Difference]: Finished difference Result 3104 states and 9615 transitions. [2022-11-26 00:59:33,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-26 00:59:33,459 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:59:33,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:59:33,463 INFO L225 Difference]: With dead ends: 3104 [2022-11-26 00:59:33,463 INFO L226 Difference]: Without dead ends: 3054 [2022-11-26 00:59:33,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=202, Invalid=398, Unknown=0, NotChecked=0, Total=600 [2022-11-26 00:59:33,464 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 257 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 1369 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:59:33,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 34 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1369 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:59:33,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3054 states. [2022-11-26 00:59:33,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3054 to 1594. [2022-11-26 00:59:33,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1594 states, 1593 states have (on average 3.4268675455116133) internal successors, (5459), 1593 states have internal predecessors, (5459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:59:33,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1594 states to 1594 states and 5459 transitions. [2022-11-26 00:59:33,493 INFO L78 Accepts]: Start accepts. Automaton has 1594 states and 5459 transitions. Word has length 33 [2022-11-26 00:59:33,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:59:33,493 INFO L495 AbstractCegarLoop]: Abstraction has 1594 states and 5459 transitions. [2022-11-26 00:59:33,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:59:33,493 INFO L276 IsEmpty]: Start isEmpty. Operand 1594 states and 5459 transitions. [2022-11-26 00:59:33,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:59:33,495 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:59:33,495 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:59:33,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2022-11-26 00:59:33,495 INFO L420 AbstractCegarLoop]: === Iteration 223 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:59:33,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:59:33,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1014599459, now seen corresponding path program 214 times [2022-11-26 00:59:33,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:59:33,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479970088] [2022-11-26 00:59:33,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:59:33,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:59:33,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:59:34,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:59:34,713 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:59:34,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479970088] [2022-11-26 00:59:34,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479970088] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:59:34,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:59:34,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:59:34,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603737940] [2022-11-26 00:59:34,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:59:34,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:59:34,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:59:34,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:59:34,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:59:34,714 INFO L87 Difference]: Start difference. First operand 1594 states and 5459 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:59:36,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:59:36,732 INFO L93 Difference]: Finished difference Result 3069 states and 9548 transitions. [2022-11-26 00:59:36,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:59:36,733 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:59:36,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:59:36,739 INFO L225 Difference]: With dead ends: 3069 [2022-11-26 00:59:36,739 INFO L226 Difference]: Without dead ends: 3042 [2022-11-26 00:59:36,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=160, Invalid=346, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:59:36,740 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 235 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 1304 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 1337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:59:36,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 32 Invalid, 1337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1304 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-26 00:59:36,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3042 states. [2022-11-26 00:59:36,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3042 to 1582. [2022-11-26 00:59:36,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1582 states, 1581 states have (on average 3.4364326375711576) internal successors, (5433), 1581 states have internal predecessors, (5433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:59:36,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 5433 transitions. [2022-11-26 00:59:36,780 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 5433 transitions. Word has length 33 [2022-11-26 00:59:36,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:59:36,780 INFO L495 AbstractCegarLoop]: Abstraction has 1582 states and 5433 transitions. [2022-11-26 00:59:36,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:59:36,780 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 5433 transitions. [2022-11-26 00:59:36,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:59:36,783 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:59:36,783 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:59:36,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2022-11-26 00:59:36,784 INFO L420 AbstractCegarLoop]: === Iteration 224 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:59:36,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:59:36,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1587975003, now seen corresponding path program 215 times [2022-11-26 00:59:36,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:59:36,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972471805] [2022-11-26 00:59:36,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:59:36,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:59:36,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:59:38,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:59:38,065 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:59:38,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972471805] [2022-11-26 00:59:38,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972471805] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:59:38,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:59:38,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:59:38,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148023837] [2022-11-26 00:59:38,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:59:38,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:59:38,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:59:38,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:59:38,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:59:38,066 INFO L87 Difference]: Start difference. First operand 1582 states and 5433 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:59:40,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:59:40,057 INFO L93 Difference]: Finished difference Result 3047 states and 9504 transitions. [2022-11-26 00:59:40,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:59:40,058 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:59:40,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:59:40,063 INFO L225 Difference]: With dead ends: 3047 [2022-11-26 00:59:40,063 INFO L226 Difference]: Without dead ends: 3026 [2022-11-26 00:59:40,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=158, Invalid=348, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:59:40,064 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 239 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 1401 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 1435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:59:40,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 37 Invalid, 1435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1401 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:59:40,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3026 states. [2022-11-26 00:59:40,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3026 to 1586. [2022-11-26 00:59:40,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1586 states, 1585 states have (on average 3.4321766561514195) internal successors, (5440), 1585 states have internal predecessors, (5440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:59:40,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1586 states to 1586 states and 5440 transitions. [2022-11-26 00:59:40,091 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 5440 transitions. Word has length 33 [2022-11-26 00:59:40,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:59:40,091 INFO L495 AbstractCegarLoop]: Abstraction has 1586 states and 5440 transitions. [2022-11-26 00:59:40,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:59:40,091 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 5440 transitions. [2022-11-26 00:59:40,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:59:40,093 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:59:40,093 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:59:40,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2022-11-26 00:59:40,093 INFO L420 AbstractCegarLoop]: === Iteration 225 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:59:40,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:59:40,094 INFO L85 PathProgramCache]: Analyzing trace with hash 637721863, now seen corresponding path program 216 times [2022-11-26 00:59:40,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:59:40,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37487663] [2022-11-26 00:59:40,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:59:40,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:59:40,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:59:41,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:59:41,138 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:59:41,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37487663] [2022-11-26 00:59:41,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37487663] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:59:41,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:59:41,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:59:41,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71685918] [2022-11-26 00:59:41,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:59:41,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:59:41,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:59:41,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:59:41,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:59:41,139 INFO L87 Difference]: Start difference. First operand 1586 states and 5440 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:59:43,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:59:43,138 INFO L93 Difference]: Finished difference Result 3043 states and 9496 transitions. [2022-11-26 00:59:43,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-26 00:59:43,139 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:59:43,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:59:43,145 INFO L225 Difference]: With dead ends: 3043 [2022-11-26 00:59:43,145 INFO L226 Difference]: Without dead ends: 3030 [2022-11-26 00:59:43,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=158, Invalid=348, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:59:43,146 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 253 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 1389 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 1423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:59:43,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 19 Invalid, 1423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1389 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-26 00:59:43,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2022-11-26 00:59:43,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 1590. [2022-11-26 00:59:43,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1590 states, 1589 states have (on average 3.4279421019509124) internal successors, (5447), 1589 states have internal predecessors, (5447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:59:43,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1590 states to 1590 states and 5447 transitions. [2022-11-26 00:59:43,185 INFO L78 Accepts]: Start accepts. Automaton has 1590 states and 5447 transitions. Word has length 33 [2022-11-26 00:59:43,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:59:43,185 INFO L495 AbstractCegarLoop]: Abstraction has 1590 states and 5447 transitions. [2022-11-26 00:59:43,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:59:43,185 INFO L276 IsEmpty]: Start isEmpty. Operand 1590 states and 5447 transitions. [2022-11-26 00:59:43,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:59:43,188 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:59:43,188 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:59:43,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2022-11-26 00:59:43,188 INFO L420 AbstractCegarLoop]: === Iteration 226 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:59:43,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:59:43,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1493028517, now seen corresponding path program 217 times [2022-11-26 00:59:43,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:59:43,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838831592] [2022-11-26 00:59:43,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:59:43,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:59:43,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:59:44,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:59:44,711 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:59:44,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838831592] [2022-11-26 00:59:44,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838831592] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:59:44,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:59:44,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-26 00:59:44,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082062643] [2022-11-26 00:59:44,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:59:44,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 00:59:44,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:59:44,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 00:59:44,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:59:44,713 INFO L87 Difference]: Start difference. First operand 1590 states and 5447 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:59:46,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:59:46,978 INFO L93 Difference]: Finished difference Result 3029 states and 9476 transitions. [2022-11-26 00:59:46,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:59:46,978 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-26 00:59:46,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:59:46,983 INFO L225 Difference]: With dead ends: 3029 [2022-11-26 00:59:46,984 INFO L226 Difference]: Without dead ends: 3006 [2022-11-26 00:59:46,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=158, Invalid=348, Unknown=0, NotChecked=0, Total=506 [2022-11-26 00:59:46,984 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 212 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 1312 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 1344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:59:46,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 38 Invalid, 1344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1312 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-26 00:59:46,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3006 states. [2022-11-26 00:59:47,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3006 to 1582. [2022-11-26 00:59:47,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1582 states, 1581 states have (on average 3.433902593295383) internal successors, (5429), 1581 states have internal predecessors, (5429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:59:47,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 5429 transitions. [2022-11-26 00:59:47,013 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 5429 transitions. Word has length 33 [2022-11-26 00:59:47,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:59:47,013 INFO L495 AbstractCegarLoop]: Abstraction has 1582 states and 5429 transitions. [2022-11-26 00:59:47,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:59:47,014 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 5429 transitions. [2022-11-26 00:59:47,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:59:47,016 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:59:47,016 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:59:47,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2022-11-26 00:59:47,016 INFO L420 AbstractCegarLoop]: === Iteration 227 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-26 00:59:47,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:59:47,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1488915221, now seen corresponding path program 218 times [2022-11-26 00:59:47,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:59:47,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185601295] [2022-11-26 00:59:47,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:59:47,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:59:47,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat