./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix035_pso.opt_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/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_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix035_pso.opt_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/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_8fbb0af3-adc7-413e-861b-9a1f7650a759/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 08616d057728e0055484e74bd2f5263dad899fb9ef1c1289b69e87b2c2f7002b --- 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 00:18:18,901 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:18:18,903 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:18:18,938 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:18:18,939 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:18:18,940 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:18:18,941 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:18:18,946 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:18:18,949 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:18:18,950 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:18:18,952 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:18:18,955 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:18:18,956 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:18:18,959 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:18:18,961 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:18:18,963 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:18:18,966 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:18:18,971 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:18:18,972 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:18:18,976 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:18:18,980 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:18:18,982 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:18:18,983 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:18:18,983 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:18:18,987 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:18:18,991 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:18:18,992 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:18:18,993 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:18:18,993 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:18:18,994 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:18:18,994 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:18:18,995 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:18:18,996 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:18:18,997 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:18:18,998 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:18:18,998 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:18:18,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:18:18,999 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:18:18,999 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:18:19,000 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:18:19,001 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:18:19,005 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-26 00:18:19,040 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:18:19,040 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:18:19,040 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:18:19,041 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:18:19,041 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:18:19,041 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:18:19,042 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:18:19,042 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:18:19,042 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:18:19,042 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:18:19,042 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:18:19,047 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:18:19,047 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:18:19,047 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:18:19,047 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:18:19,048 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:18:19,048 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:18:19,048 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:18:19,049 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-26 00:18:19,049 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-26 00:18:19,049 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:18:19,050 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:18:19,050 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:18:19,050 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:18:19,051 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:18:19,051 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:18:19,051 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-26 00:18:19,052 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-26 00:18:19,052 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-26 00:18:19,052 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:18:19,053 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-26 00:18:19,053 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:18:19,053 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:18:19,053 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:18:19,054 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:18:19,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:18:19,054 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:18:19,054 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:18:19,055 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:18:19,055 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:18:19,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:18:19,056 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:18:19,056 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_8fbb0af3-adc7-413e-861b-9a1f7650a759/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08616d057728e0055484e74bd2f5263dad899fb9ef1c1289b69e87b2c2f7002b [2022-11-26 00:18:19,390 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:18:19,427 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:18:19,429 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:18:19,431 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:18:19,431 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:18:19,433 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/pthread-wmm/mix035_pso.opt_tso.opt.i [2022-11-26 00:18:22,612 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:18:22,908 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:18:22,909 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/sv-benchmarks/c/pthread-wmm/mix035_pso.opt_tso.opt.i [2022-11-26 00:18:22,921 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/data/16544a34a/a3400f9a49ae471cb5812c45025cf575/FLAG39d932671 [2022-11-26 00:18:22,944 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/data/16544a34a/a3400f9a49ae471cb5812c45025cf575 [2022-11-26 00:18:22,946 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:18:22,948 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:18:22,949 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:18:22,949 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:18:22,957 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:18:22,959 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:18:22" (1/1) ... [2022-11-26 00:18:22,960 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cccddc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:22, skipping insertion in model container [2022-11-26 00:18:22,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:18:22" (1/1) ... [2022-11-26 00:18:22,967 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:18:23,027 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:18:23,250 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_8fbb0af3-adc7-413e-861b-9a1f7650a759/sv-benchmarks/c/pthread-wmm/mix035_pso.opt_tso.opt.i[956,969] [2022-11-26 00:18:23,492 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:23,493 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:23,493 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:23,493 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:23,494 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:23,494 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:23,494 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:23,495 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:23,496 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:23,497 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:23,497 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:23,522 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:23,523 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:23,523 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:23,523 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:23,524 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:23,529 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:23,534 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:23,534 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:23,535 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:23,535 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:23,535 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:23,536 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:23,536 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:23,536 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:23,539 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:23,539 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:23,539 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:23,545 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:23,546 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:23,546 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:23,549 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:23,549 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:23,550 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:23,551 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:18:23,567 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:18:23,583 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_8fbb0af3-adc7-413e-861b-9a1f7650a759/sv-benchmarks/c/pthread-wmm/mix035_pso.opt_tso.opt.i[956,969] [2022-11-26 00:18:23,622 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:23,625 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:23,626 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:23,627 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:23,627 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:23,627 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:23,629 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:23,629 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:23,630 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:23,630 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:23,630 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:23,643 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:23,644 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:23,644 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:23,644 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:23,645 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:23,645 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:23,646 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:23,647 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:23,647 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:23,647 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:23,648 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:23,648 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:23,648 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:23,648 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:23,650 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:23,651 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:23,651 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:23,660 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:23,662 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:23,664 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:23,666 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:23,672 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:23,673 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:23,674 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:18:23,715 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:18:23,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:23 WrapperNode [2022-11-26 00:18:23,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:18:23,717 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:18:23,718 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:18:23,718 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:18:23,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:23" (1/1) ... [2022-11-26 00:18:23,752 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:23" (1/1) ... [2022-11-26 00:18:23,797 INFO L138 Inliner]: procedures = 176, calls = 58, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 137 [2022-11-26 00:18:23,798 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:18:23,798 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:18:23,798 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:18:23,799 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:18:23,808 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:23" (1/1) ... [2022-11-26 00:18:23,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:23" (1/1) ... [2022-11-26 00:18:23,821 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:23" (1/1) ... [2022-11-26 00:18:23,821 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:23" (1/1) ... [2022-11-26 00:18:23,832 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:23" (1/1) ... [2022-11-26 00:18:23,834 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:23" (1/1) ... [2022-11-26 00:18:23,836 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:23" (1/1) ... [2022-11-26 00:18:23,837 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:23" (1/1) ... [2022-11-26 00:18:23,840 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:18:23,841 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:18:23,841 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:18:23,841 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:18:23,842 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:23" (1/1) ... [2022-11-26 00:18:23,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:18:23,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:18:23,900 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:18:23,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:18:23,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:18:23,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-26 00:18:23,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:18:23,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:18:23,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:18:23,946 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-26 00:18:23,946 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-26 00:18:23,947 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-26 00:18:23,947 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-26 00:18:23,947 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-26 00:18:23,947 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-26 00:18:23,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:18:23,948 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-26 00:18:23,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:18:23,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:18:23,950 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 00:18:24,084 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:18:24,086 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:18:24,496 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:18:24,813 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:18:24,813 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:18:24,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:18:24 BoogieIcfgContainer [2022-11-26 00:18:24,816 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:18:24,848 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:18:24,848 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:18:24,851 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:18:24,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:18:22" (1/3) ... [2022-11-26 00:18:24,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ed95bbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:18:24, skipping insertion in model container [2022-11-26 00:18:24,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:23" (2/3) ... [2022-11-26 00:18:24,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ed95bbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:18:24, skipping insertion in model container [2022-11-26 00:18:24,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:18:24" (3/3) ... [2022-11-26 00:18:24,854 INFO L112 eAbstractionObserver]: Analyzing ICFG mix035_pso.opt_tso.opt.i [2022-11-26 00:18:24,889 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:18:24,890 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2022-11-26 00:18:24,890 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-26 00:18:24,965 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-26 00:18:24,999 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-26 00:18:25,014 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 136 places, 128 transitions, 271 flow [2022-11-26 00:18:25,017 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 136 places, 128 transitions, 271 flow [2022-11-26 00:18:25,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 136 places, 128 transitions, 271 flow [2022-11-26 00:18:25,077 INFO L130 PetriNetUnfolder]: 2/125 cut-off events. [2022-11-26 00:18:25,077 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-26 00:18:25,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 125 events. 2/125 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 79 event pairs, 0 based on Foata normal form. 0/114 useless extension candidates. Maximal degree in co-relation 80. Up to 2 conditions per place. [2022-11-26 00:18:25,086 INFO L119 LiptonReduction]: Number of co-enabled transitions 2220 [2022-11-26 00:18:30,705 INFO L134 LiptonReduction]: Checked pairs total: 4894 [2022-11-26 00:18:30,706 INFO L136 LiptonReduction]: Total number of compositions: 131 [2022-11-26 00:18:30,714 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 43 places, 34 transitions, 83 flow [2022-11-26 00:18:30,790 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 788 states, 777 states have (on average 3.2741312741312742) internal successors, (2544), 787 states have internal predecessors, (2544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:30,808 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:18:30,815 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;@61ddf39c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:18:30,815 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-11-26 00:18:30,822 INFO L276 IsEmpty]: Start isEmpty. Operand has 788 states, 777 states have (on average 3.2741312741312742) internal successors, (2544), 787 states have internal predecessors, (2544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:30,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-26 00:18:30,835 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:30,835 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-26 00:18:30,836 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-26 00:18:30,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:30,841 INFO L85 PathProgramCache]: Analyzing trace with hash 537, now seen corresponding path program 1 times [2022-11-26 00:18:30,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:18:30,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178594711] [2022-11-26 00:18:30,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:30,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:18:30,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:18:30,987 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 00:18:30,990 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:18:30,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178594711] [2022-11-26 00:18:30,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178594711] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:18:30,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:18:30,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-26 00:18:30,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695487981] [2022-11-26 00:18:30,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:18:31,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:18:31,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:18:31,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:18:31,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:18:31,039 INFO L87 Difference]: Start difference. First operand has 788 states, 777 states have (on average 3.2741312741312742) internal successors, (2544), 787 states have internal predecessors, (2544), 0 states have call successors, (0), 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 00:18:31,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:31,145 INFO L93 Difference]: Finished difference Result 746 states and 2336 transitions. [2022-11-26 00:18:31,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:18:31,156 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 00:18:31,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:31,184 INFO L225 Difference]: With dead ends: 746 [2022-11-26 00:18:31,184 INFO L226 Difference]: Without dead ends: 746 [2022-11-26 00:18:31,185 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 00:18:31,190 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:31,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:18:31,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2022-11-26 00:18:31,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 746. [2022-11-26 00:18:31,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 746 states, 741 states have (on average 3.1524966261808367) internal successors, (2336), 745 states have internal predecessors, (2336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:31,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 2336 transitions. [2022-11-26 00:18:31,318 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 2336 transitions. Word has length 1 [2022-11-26 00:18:31,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:31,320 INFO L495 AbstractCegarLoop]: Abstraction has 746 states and 2336 transitions. [2022-11-26 00:18:31,323 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 00:18:31,325 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 2336 transitions. [2022-11-26 00:18:31,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-26 00:18:31,325 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:31,326 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:18:31,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:18:31,326 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P2Err0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-26 00:18:31,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:31,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1015619622, now seen corresponding path program 1 times [2022-11-26 00:18:31,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:18:31,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251751429] [2022-11-26 00:18:31,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:31,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:18:31,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:18:31,746 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 00:18:31,746 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:18:31,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251751429] [2022-11-26 00:18:31,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251751429] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:18:31,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:18:31,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 00:18:31,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855841340] [2022-11-26 00:18:31,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:18:31,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:18:31,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:18:31,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:18:31,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:18:31,750 INFO L87 Difference]: Start difference. First operand 746 states and 2336 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 00:18:31,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:31,828 INFO L93 Difference]: Finished difference Result 634 states and 1960 transitions. [2022-11-26 00:18:31,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:18:31,829 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 00:18:31,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:31,834 INFO L225 Difference]: With dead ends: 634 [2022-11-26 00:18:31,835 INFO L226 Difference]: Without dead ends: 618 [2022-11-26 00:18:31,836 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 00:18:31,837 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 10 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:31,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 4 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:18:31,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2022-11-26 00:18:31,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 618. [2022-11-26 00:18:31,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 616 states have (on average 3.116883116883117) internal successors, (1920), 617 states have internal predecessors, (1920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:31,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 1920 transitions. [2022-11-26 00:18:31,874 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 1920 transitions. Word has length 7 [2022-11-26 00:18:31,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:31,875 INFO L495 AbstractCegarLoop]: Abstraction has 618 states and 1920 transitions. [2022-11-26 00:18:31,875 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 00:18:31,876 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 1920 transitions. [2022-11-26 00:18:31,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-26 00:18:31,878 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:31,878 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:18:31,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:18:31,881 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-26 00:18:31,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:31,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1722813104, now seen corresponding path program 1 times [2022-11-26 00:18:31,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:18:31,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63133431] [2022-11-26 00:18:31,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:31,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:18:31,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:18:32,218 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 00:18:32,218 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:18:32,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63133431] [2022-11-26 00:18:32,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63133431] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:18:32,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:18:32,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:18:32,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420627476] [2022-11-26 00:18:32,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:18:32,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:18:32,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:18:32,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:18:32,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:18:32,221 INFO L87 Difference]: Start difference. First operand 618 states and 1920 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:32,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:32,371 INFO L93 Difference]: Finished difference Result 786 states and 2376 transitions. [2022-11-26 00:18:32,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:18:32,372 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2022-11-26 00:18:32,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:32,376 INFO L225 Difference]: With dead ends: 786 [2022-11-26 00:18:32,377 INFO L226 Difference]: Without dead ends: 786 [2022-11-26 00:18:32,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:18:32,378 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 24 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:32,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 6 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:18:32,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2022-11-26 00:18:32,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 698. [2022-11-26 00:18:32,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 696 states have (on average 3.1264367816091956) internal successors, (2176), 697 states have internal predecessors, (2176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:32,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 2176 transitions. [2022-11-26 00:18:32,404 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 2176 transitions. Word has length 10 [2022-11-26 00:18:32,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:32,404 INFO L495 AbstractCegarLoop]: Abstraction has 698 states and 2176 transitions. [2022-11-26 00:18:32,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:32,405 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 2176 transitions. [2022-11-26 00:18:32,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-26 00:18:32,406 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:32,406 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:18:32,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:18:32,406 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-26 00:18:32,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:32,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1722813136, now seen corresponding path program 1 times [2022-11-26 00:18:32,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:18:32,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742592797] [2022-11-26 00:18:32,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:32,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:18:32,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:18:32,821 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 00:18:32,821 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:18:32,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742592797] [2022-11-26 00:18:32,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742592797] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:18:32,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:18:32,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:18:32,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712719983] [2022-11-26 00:18:32,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:18:32,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:18:32,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:18:32,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:18:32,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:18:32,829 INFO L87 Difference]: Start difference. First operand 698 states and 2176 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:32,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:32,933 INFO L93 Difference]: Finished difference Result 602 states and 1768 transitions. [2022-11-26 00:18:32,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:18:32,935 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2022-11-26 00:18:32,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:32,938 INFO L225 Difference]: With dead ends: 602 [2022-11-26 00:18:32,938 INFO L226 Difference]: Without dead ends: 506 [2022-11-26 00:18:32,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:18:32,939 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 21 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:32,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 12 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:18:32,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2022-11-26 00:18:32,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 506. [2022-11-26 00:18:32,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 505 states have (on average 3.0415841584158416) internal successors, (1536), 505 states have internal predecessors, (1536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:32,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 1536 transitions. [2022-11-26 00:18:32,955 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 1536 transitions. Word has length 10 [2022-11-26 00:18:32,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:32,956 INFO L495 AbstractCegarLoop]: Abstraction has 506 states and 1536 transitions. [2022-11-26 00:18:32,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:32,956 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 1536 transitions. [2022-11-26 00:18:32,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-26 00:18:32,957 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:32,958 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:18:32,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 00:18:32,958 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-26 00:18:32,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:32,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1983330417, now seen corresponding path program 1 times [2022-11-26 00:18:32,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:18:32,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131308972] [2022-11-26 00:18:32,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:32,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:18:33,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:18:33,161 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 00:18:33,161 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:18:33,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131308972] [2022-11-26 00:18:33,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131308972] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:18:33,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:18:33,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:18:33,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179713243] [2022-11-26 00:18:33,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:18:33,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:18:33,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:18:33,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:18:33,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:18:33,163 INFO L87 Difference]: Start difference. First operand 506 states and 1536 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:33,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:33,262 INFO L93 Difference]: Finished difference Result 438 states and 1149 transitions. [2022-11-26 00:18:33,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:18:33,263 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 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 12 [2022-11-26 00:18:33,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:33,265 INFO L225 Difference]: With dead ends: 438 [2022-11-26 00:18:33,265 INFO L226 Difference]: Without dead ends: 342 [2022-11-26 00:18:33,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:18:33,266 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 36 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:33,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 6 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:18:33,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2022-11-26 00:18:33,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2022-11-26 00:18:33,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 341 states have (on average 2.5806451612903225) internal successors, (880), 341 states have internal predecessors, (880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:33,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 880 transitions. [2022-11-26 00:18:33,280 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 880 transitions. Word has length 12 [2022-11-26 00:18:33,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:33,280 INFO L495 AbstractCegarLoop]: Abstraction has 342 states and 880 transitions. [2022-11-26 00:18:33,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:33,281 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 880 transitions. [2022-11-26 00:18:33,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-26 00:18:33,286 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:33,287 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:18:33,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-26 00:18:33,287 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-26 00:18:33,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:33,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1214733495, now seen corresponding path program 1 times [2022-11-26 00:18:33,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:18:33,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300814234] [2022-11-26 00:18:33,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:33,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:18:33,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:18:33,535 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 00:18:33,535 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:18:33,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300814234] [2022-11-26 00:18:33,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300814234] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:18:33,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:18:33,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:18:33,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339050531] [2022-11-26 00:18:33,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:18:33,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:18:33,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:18:33,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:18:33,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:18:33,537 INFO L87 Difference]: Start difference. First operand 342 states and 880 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:33,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:33,637 INFO L93 Difference]: Finished difference Result 356 states and 885 transitions. [2022-11-26 00:18:33,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:18:33,638 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 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 13 [2022-11-26 00:18:33,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:33,640 INFO L225 Difference]: With dead ends: 356 [2022-11-26 00:18:33,640 INFO L226 Difference]: Without dead ends: 314 [2022-11-26 00:18:33,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:18:33,641 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 22 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:33,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 10 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:18:33,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2022-11-26 00:18:33,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314. [2022-11-26 00:18:33,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 313 states have (on average 2.5559105431309903) internal successors, (800), 313 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:33,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 800 transitions. [2022-11-26 00:18:33,651 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 800 transitions. Word has length 13 [2022-11-26 00:18:33,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:33,652 INFO L495 AbstractCegarLoop]: Abstraction has 314 states and 800 transitions. [2022-11-26 00:18:33,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:33,652 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 800 transitions. [2022-11-26 00:18:33,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-26 00:18:33,653 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:33,653 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:18:33,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-26 00:18:33,654 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-26 00:18:33,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:33,654 INFO L85 PathProgramCache]: Analyzing trace with hash 8474936, now seen corresponding path program 1 times [2022-11-26 00:18:33,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:18:33,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71832269] [2022-11-26 00:18:33,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:33,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:18:33,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:18:33,864 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 00:18:33,864 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:18:33,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71832269] [2022-11-26 00:18:33,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71832269] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:18:33,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:18:33,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:18:33,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386495899] [2022-11-26 00:18:33,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:18:33,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:18:33,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:18:33,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:18:33,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:18:33,866 INFO L87 Difference]: Start difference. First operand 314 states and 800 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:34,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:34,011 INFO L93 Difference]: Finished difference Result 233 states and 532 transitions. [2022-11-26 00:18:34,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:18:34,012 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 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 15 [2022-11-26 00:18:34,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:34,013 INFO L225 Difference]: With dead ends: 233 [2022-11-26 00:18:34,013 INFO L226 Difference]: Without dead ends: 182 [2022-11-26 00:18:34,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:18:34,014 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 65 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:34,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 8 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:18:34,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-11-26 00:18:34,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2022-11-26 00:18:34,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 181 states have (on average 2.2320441988950277) internal successors, (404), 181 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:34,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 404 transitions. [2022-11-26 00:18:34,021 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 404 transitions. Word has length 15 [2022-11-26 00:18:34,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:34,021 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 404 transitions. [2022-11-26 00:18:34,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:34,021 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 404 transitions. [2022-11-26 00:18:34,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-26 00:18:34,022 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:34,022 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:18:34,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-26 00:18:34,022 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-26 00:18:34,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:34,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1962175361, now seen corresponding path program 1 times [2022-11-26 00:18:34,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:18:34,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94855796] [2022-11-26 00:18:34,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:34,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:18:34,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:18:34,214 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 00:18:34,214 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:18:34,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94855796] [2022-11-26 00:18:34,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94855796] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:18:34,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:18:34,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:18:34,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514175378] [2022-11-26 00:18:34,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:18:34,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:18:34,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:18:34,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:18:34,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:18:34,217 INFO L87 Difference]: Start difference. First operand 182 states and 404 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:34,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:34,369 INFO L93 Difference]: Finished difference Result 259 states and 553 transitions. [2022-11-26 00:18:34,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:18:34,369 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 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 18 [2022-11-26 00:18:34,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:34,371 INFO L225 Difference]: With dead ends: 259 [2022-11-26 00:18:34,371 INFO L226 Difference]: Without dead ends: 186 [2022-11-26 00:18:34,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:18:34,372 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 34 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:34,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 12 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:18:34,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2022-11-26 00:18:34,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 182. [2022-11-26 00:18:34,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 181 states have (on average 2.088397790055249) internal successors, (378), 181 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:34,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 378 transitions. [2022-11-26 00:18:34,378 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 378 transitions. Word has length 18 [2022-11-26 00:18:34,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:34,378 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 378 transitions. [2022-11-26 00:18:34,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:34,379 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 378 transitions. [2022-11-26 00:18:34,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-26 00:18:34,379 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:34,380 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:18:34,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-26 00:18:34,380 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-26 00:18:34,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:34,380 INFO L85 PathProgramCache]: Analyzing trace with hash 715169595, now seen corresponding path program 1 times [2022-11-26 00:18:34,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:18:34,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772007740] [2022-11-26 00:18:34,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:34,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:18:34,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:18:34,673 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 00:18:34,673 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:18:34,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772007740] [2022-11-26 00:18:34,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772007740] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:18:34,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:18:34,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:18:34,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022099567] [2022-11-26 00:18:34,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:18:34,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:18:34,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:18:34,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:18:34,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:18:34,676 INFO L87 Difference]: Start difference. First operand 182 states and 378 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:34,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:34,792 INFO L93 Difference]: Finished difference Result 154 states and 321 transitions. [2022-11-26 00:18:34,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:18:34,793 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 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 18 [2022-11-26 00:18:34,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:34,793 INFO L225 Difference]: With dead ends: 154 [2022-11-26 00:18:34,793 INFO L226 Difference]: Without dead ends: 94 [2022-11-26 00:18:34,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-11-26 00:18:34,794 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 69 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:34,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 5 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:18:34,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-11-26 00:18:34,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2022-11-26 00:18:34,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 93 states have (on average 2.0) internal successors, (186), 93 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:34,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 186 transitions. [2022-11-26 00:18:34,798 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 186 transitions. Word has length 18 [2022-11-26 00:18:34,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:34,799 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 186 transitions. [2022-11-26 00:18:34,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:34,799 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 186 transitions. [2022-11-26 00:18:34,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-26 00:18:34,799 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:34,800 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] [2022-11-26 00:18:34,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-26 00:18:34,800 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-26 00:18:34,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:34,800 INFO L85 PathProgramCache]: Analyzing trace with hash -2145957560, now seen corresponding path program 1 times [2022-11-26 00:18:34,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:18:34,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612071395] [2022-11-26 00:18:34,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:34,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:18:34,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:18:35,053 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 00:18:35,053 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:18:35,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612071395] [2022-11-26 00:18:35,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612071395] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:18:35,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:18:35,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:18:35,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942613406] [2022-11-26 00:18:35,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:18:35,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:18:35,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:18:35,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:18:35,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:18:35,056 INFO L87 Difference]: Start difference. First operand 94 states and 186 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:35,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:35,176 INFO L93 Difference]: Finished difference Result 124 states and 240 transitions. [2022-11-26 00:18:35,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:18:35,177 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 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 21 [2022-11-26 00:18:35,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:35,177 INFO L225 Difference]: With dead ends: 124 [2022-11-26 00:18:35,177 INFO L226 Difference]: Without dead ends: 43 [2022-11-26 00:18:35,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:18:35,178 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 24 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:35,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 7 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:18:35,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-26 00:18:35,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-11-26 00:18:35,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.6428571428571428) internal successors, (69), 42 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:35,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 69 transitions. [2022-11-26 00:18:35,181 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 69 transitions. Word has length 21 [2022-11-26 00:18:35,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:35,181 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 69 transitions. [2022-11-26 00:18:35,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:35,181 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 69 transitions. [2022-11-26 00:18:35,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-26 00:18:35,182 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:35,182 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] [2022-11-26 00:18:35,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-26 00:18:35,182 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-26 00:18:35,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:35,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1233483776, now seen corresponding path program 2 times [2022-11-26 00:18:35,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:18:35,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223860380] [2022-11-26 00:18:35,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:35,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:18:35,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:18:35,734 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 00:18:35,735 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:18:35,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223860380] [2022-11-26 00:18:35,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223860380] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:18:35,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:18:35,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:18:35,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292412524] [2022-11-26 00:18:35,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:18:35,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-26 00:18:35,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:18:35,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-26 00:18:35,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:18:35,736 INFO L87 Difference]: Start difference. First operand 43 states and 69 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:35,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:35,909 INFO L93 Difference]: Finished difference Result 54 states and 84 transitions. [2022-11-26 00:18:35,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-26 00:18:35,909 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 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 21 [2022-11-26 00:18:35,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:35,910 INFO L225 Difference]: With dead ends: 54 [2022-11-26 00:18:35,910 INFO L226 Difference]: Without dead ends: 31 [2022-11-26 00:18:35,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:18:35,911 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 19 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:35,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 9 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:18:35,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-26 00:18:35,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-11-26 00:18:35,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 30 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:35,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 41 transitions. [2022-11-26 00:18:35,913 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 41 transitions. Word has length 21 [2022-11-26 00:18:35,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:35,913 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 41 transitions. [2022-11-26 00:18:35,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:35,913 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 41 transitions. [2022-11-26 00:18:35,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-26 00:18:35,914 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:35,914 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] [2022-11-26 00:18:35,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-26 00:18:35,914 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-26 00:18:35,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:35,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1853205436, now seen corresponding path program 3 times [2022-11-26 00:18:35,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:18:35,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279157772] [2022-11-26 00:18:35,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:35,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:18:35,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:18:35,950 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:18:35,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:18:35,998 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 00:18:35,999 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:18:36,000 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (12 of 13 remaining) [2022-11-26 00:18:36,001 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (11 of 13 remaining) [2022-11-26 00:18:36,002 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 13 remaining) [2022-11-26 00:18:36,002 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 13 remaining) [2022-11-26 00:18:36,002 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 13 remaining) [2022-11-26 00:18:36,003 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 13 remaining) [2022-11-26 00:18:36,003 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 13 remaining) [2022-11-26 00:18:36,003 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 13 remaining) [2022-11-26 00:18:36,003 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (4 of 13 remaining) [2022-11-26 00:18:36,004 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 13 remaining) [2022-11-26 00:18:36,004 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 13 remaining) [2022-11-26 00:18:36,004 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 13 remaining) [2022-11-26 00:18:36,004 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 13 remaining) [2022-11-26 00:18:36,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-26 00:18:36,007 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:18:36,012 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-26 00:18:36,012 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:18:36,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:18:36 BasicIcfg [2022-11-26 00:18:36,071 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:18:36,071 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:18:36,071 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:18:36,071 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:18:36,072 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:18:24" (3/4) ... [2022-11-26 00:18:36,075 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 00:18:36,075 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:18:36,075 INFO L158 Benchmark]: Toolchain (without parser) took 13127.59ms. Allocated memory was 144.7MB in the beginning and 226.5MB in the end (delta: 81.8MB). Free memory was 112.4MB in the beginning and 96.4MB in the end (delta: 16.0MB). Peak memory consumption was 98.9MB. Max. memory is 16.1GB. [2022-11-26 00:18:36,076 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 144.7MB. Free memory is still 88.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:18:36,076 INFO L158 Benchmark]: CACSL2BoogieTranslator took 767.57ms. Allocated memory is still 144.7MB. Free memory was 112.2MB in the beginning and 85.8MB in the end (delta: 26.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-26 00:18:36,076 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.30ms. Allocated memory is still 144.7MB. Free memory was 85.8MB in the beginning and 83.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:18:36,077 INFO L158 Benchmark]: Boogie Preprocessor took 41.88ms. Allocated memory is still 144.7MB. Free memory was 83.3MB in the beginning and 81.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:18:36,077 INFO L158 Benchmark]: RCFGBuilder took 975.39ms. Allocated memory is still 144.7MB. Free memory was 81.5MB in the beginning and 50.6MB in the end (delta: 30.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-26 00:18:36,077 INFO L158 Benchmark]: TraceAbstraction took 11222.73ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 158.4MB in the beginning and 96.4MB in the end (delta: 62.0MB). Peak memory consumption was 98.5MB. Max. memory is 16.1GB. [2022-11-26 00:18:36,078 INFO L158 Benchmark]: Witness Printer took 3.74ms. Allocated memory is still 226.5MB. Free memory is still 96.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:18:36,079 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 144.7MB. Free memory is still 88.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 767.57ms. Allocated memory is still 144.7MB. Free memory was 112.2MB in the beginning and 85.8MB in the end (delta: 26.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.30ms. Allocated memory is still 144.7MB. Free memory was 85.8MB in the beginning and 83.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.88ms. Allocated memory is still 144.7MB. Free memory was 83.3MB in the beginning and 81.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 975.39ms. Allocated memory is still 144.7MB. Free memory was 81.5MB in the beginning and 50.6MB in the end (delta: 30.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 11222.73ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 158.4MB in the beginning and 96.4MB in the end (delta: 62.0MB). Peak memory consumption was 98.5MB. Max. memory is 16.1GB. * Witness Printer took 3.74ms. Allocated memory is still 226.5MB. Free memory is still 96.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.7s, 136 PlacesBefore, 43 PlacesAfterwards, 128 TransitionsBefore, 34 TransitionsAfterwards, 2220 CoEnabledTransitionPairs, 6 FixpointIterations, 57 TrivialSequentialCompositions, 64 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 131 TotalNumberOfCompositions, 4894 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2778, independent: 2643, independent conditional: 0, independent unconditional: 2643, dependent: 135, dependent conditional: 0, dependent unconditional: 135, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1603, independent: 1565, independent conditional: 0, independent unconditional: 1565, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1603, independent: 1555, independent conditional: 0, independent unconditional: 1555, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 48, independent: 10, independent conditional: 0, independent unconditional: 10, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 274, independent: 17, independent conditional: 0, independent unconditional: 17, dependent: 257, dependent conditional: 0, dependent unconditional: 257, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2778, independent: 1078, independent conditional: 0, independent unconditional: 1078, dependent: 97, dependent conditional: 0, dependent unconditional: 97, unknown: 1603, unknown conditional: 0, unknown unconditional: 1603] , Statistics on independence cache: Total cache size (in pairs): 161, Positive cache size: 145, Positive conditional cache size: 0, Positive unconditional cache size: 145, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p0_EAX = 0; [L713] 0 int __unbuffered_p1_EAX = 0; [L715] 0 int __unbuffered_p2_EAX = 0; [L717] 0 int __unbuffered_p2_EBX = 0; [L719] 0 int a = 0; [L720] 0 _Bool main$tmp_guard0; [L721] 0 _Bool main$tmp_guard1; [L723] 0 int x = 0; [L725] 0 int y = 0; [L726] 0 _Bool y$flush_delayed; [L727] 0 int y$mem_tmp; [L728] 0 _Bool y$r_buff0_thd0; [L729] 0 _Bool y$r_buff0_thd1; [L730] 0 _Bool y$r_buff0_thd2; [L731] 0 _Bool y$r_buff0_thd3; [L732] 0 _Bool y$r_buff1_thd0; [L733] 0 _Bool y$r_buff1_thd1; [L734] 0 _Bool y$r_buff1_thd2; [L735] 0 _Bool y$r_buff1_thd3; [L736] 0 _Bool y$read_delayed; [L737] 0 int *y$read_delayed_var; [L738] 0 int y$w_buff0; [L739] 0 _Bool y$w_buff0_used; [L740] 0 int y$w_buff1; [L741] 0 _Bool y$w_buff1_used; [L743] 0 int z = 0; [L744] 0 _Bool weak$$choice0; [L745] 0 _Bool weak$$choice2; [L835] 0 pthread_t t922; [L836] FCALL, FORK 0 pthread_create(&t922, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t922, ((void *)0), P0, ((void *)0))=-2, t922={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L837] 0 pthread_t t923; [L838] FCALL, FORK 0 pthread_create(&t923, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t923, ((void *)0), P1, ((void *)0))=-1, t922={5:0}, t923={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L839] 0 pthread_t t924; [L840] FCALL, FORK 0 pthread_create(&t924, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t924, ((void *)0), P2, ((void *)0))=0, t922={5:0}, t923={6:0}, t924={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L792] 3 y$w_buff1 = y$w_buff0 [L793] 3 y$w_buff0 = 1 [L794] 3 y$w_buff1_used = y$w_buff0_used [L795] 3 y$w_buff0_used = (_Bool)1 [L796] CALL 3 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L18] COND FALSE 3 !(!expression) [L796] RET 3 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L797] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L798] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L799] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L800] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L801] 3 y$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L804] 3 z = 1 [L807] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L810] 3 __unbuffered_p2_EBX = a VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L749] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L752] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L764] 2 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L767] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L768] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L769] 2 y$flush_delayed = weak$$choice2 [L770] 2 y$mem_tmp = y [L771] 2 y = !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L772] 2 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L773] 2 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L774] 2 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L775] 2 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L776] 2 y$r_buff0_thd2 = weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L777] 2 y$r_buff1_thd2 = weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L778] 2 __unbuffered_p1_EAX = y [L779] 2 y = y$flush_delayed ? y$mem_tmp : y [L780] 2 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L813] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L814] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L815] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L816] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L817] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L785] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L787] 2 return 0; [L820] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L822] 3 return 0; [L757] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L759] 1 return 0; [L842] 0 main$tmp_guard0 = __unbuffered_cnt == 3 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t922={5:0}, t923={6:0}, t924={3:0}, weak$$choice0=49, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L844] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L844] RET 0 assume_abort_if_not(main$tmp_guard0) [L846] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L847] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L848] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L849] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L850] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t922={5:0}, t923={6:0}, t924={3:0}, weak$$choice0=49, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L853] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 0 && __unbuffered_p2_EAX == 1 && __unbuffered_p2_EBX == 0) [L855] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=0, \old(expression)=1, \result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 833]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 836]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 838]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 840]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 155 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 11.0s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 324 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 324 mSDsluCounter, 81 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 48 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 788 IncrementalHoareTripleChecker+Invalid, 801 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 33 mSDtfsCounter, 788 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=788occurred in iteration=0, InterpolantAutomatonStates: 54, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 92 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 167 NumberOfCodeBlocks, 167 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 135 ConstructedInterpolants, 0 QuantifiedInterpolants, 891 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-26 00:18:36,115 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/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_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix035_pso.opt_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/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 08616d057728e0055484e74bd2f5263dad899fb9ef1c1289b69e87b2c2f7002b --- 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 00:18:38,537 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:18:38,540 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:18:38,585 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:18:38,585 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:18:38,589 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:18:38,592 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:18:38,595 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:18:38,597 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:18:38,602 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:18:38,604 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:18:38,607 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:18:38,607 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:18:38,609 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:18:38,611 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:18:38,618 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:18:38,619 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:18:38,620 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:18:38,621 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:18:38,624 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:18:38,628 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:18:38,630 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:18:38,631 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:18:38,632 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:18:38,641 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:18:38,642 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:18:38,643 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:18:38,645 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:18:38,645 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:18:38,647 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:18:38,647 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:18:38,648 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:18:38,650 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:18:38,651 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:18:38,652 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:18:38,652 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:18:38,653 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:18:38,653 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:18:38,653 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:18:38,654 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:18:38,655 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:18:38,656 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2022-11-26 00:18:38,716 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:18:38,716 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:18:38,717 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:18:38,717 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:18:38,718 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:18:38,719 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:18:38,719 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:18:38,719 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:18:38,720 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:18:38,720 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:18:38,721 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:18:38,721 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:18:38,723 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-26 00:18:38,723 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-26 00:18:38,723 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:18:38,724 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:18:38,724 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:18:38,724 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:18:38,724 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:18:38,725 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:18:38,725 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-26 00:18:38,725 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-26 00:18:38,725 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-26 00:18:38,726 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:18:38,726 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-26 00:18:38,727 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-26 00:18:38,727 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-26 00:18:38,727 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:18:38,727 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:18:38,728 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:18:38,728 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-26 00:18:38,728 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:18:38,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:18:38,729 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:18:38,729 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:18:38,730 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-26 00:18:38,730 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-26 00:18:38,730 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:18:38,730 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-26 00:18:38,731 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_8fbb0af3-adc7-413e-861b-9a1f7650a759/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_8fbb0af3-adc7-413e-861b-9a1f7650a759/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 -> 08616d057728e0055484e74bd2f5263dad899fb9ef1c1289b69e87b2c2f7002b [2022-11-26 00:18:39,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:18:39,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:18:39,143 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:18:39,144 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:18:39,146 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:18:39,147 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/pthread-wmm/mix035_pso.opt_tso.opt.i [2022-11-26 00:18:42,267 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:18:42,611 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:18:42,611 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/sv-benchmarks/c/pthread-wmm/mix035_pso.opt_tso.opt.i [2022-11-26 00:18:42,634 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/data/1d72f3afd/32a9a83e134946e794aeeccf2cba4c77/FLAG6bbf55523 [2022-11-26 00:18:42,655 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/data/1d72f3afd/32a9a83e134946e794aeeccf2cba4c77 [2022-11-26 00:18:42,658 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:18:42,659 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:18:42,662 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:18:42,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:18:42,666 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:18:42,667 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:18:42" (1/1) ... [2022-11-26 00:18:42,668 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4814eb0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:42, skipping insertion in model container [2022-11-26 00:18:42,668 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:18:42" (1/1) ... [2022-11-26 00:18:42,676 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:18:42,742 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:18:42,907 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_8fbb0af3-adc7-413e-861b-9a1f7650a759/sv-benchmarks/c/pthread-wmm/mix035_pso.opt_tso.opt.i[956,969] [2022-11-26 00:18:43,115 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:43,116 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:43,116 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:43,117 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:43,117 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:43,117 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:43,117 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:43,119 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:43,120 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:43,121 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:43,121 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:43,146 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:43,146 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:43,146 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:43,146 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:43,150 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:43,151 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:43,153 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:43,153 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:43,153 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:43,153 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:43,154 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:43,154 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:43,154 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:43,155 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:43,157 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:43,157 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:43,157 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:43,179 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:43,179 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:43,180 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:43,181 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:43,182 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:43,182 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:43,183 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:18:43,197 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:18:43,210 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_8fbb0af3-adc7-413e-861b-9a1f7650a759/sv-benchmarks/c/pthread-wmm/mix035_pso.opt_tso.opt.i[956,969] [2022-11-26 00:18:43,230 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:43,231 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:43,231 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:43,231 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:43,232 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:43,232 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:43,232 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:43,232 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:43,233 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:43,233 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:43,234 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:43,239 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:43,239 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:43,239 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:43,239 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:43,240 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:43,241 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:43,242 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:43,242 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:43,242 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:43,243 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:43,243 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:43,243 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:43,243 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:43,243 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:43,245 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:43,246 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:43,246 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:43,249 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:43,250 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:43,250 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:43,252 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:43,252 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:18:43,253 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:18:43,254 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:18:43,292 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:18:43,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:43 WrapperNode [2022-11-26 00:18:43,292 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:18:43,293 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:18:43,293 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:18:43,294 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:18:43,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:43" (1/1) ... [2022-11-26 00:18:43,318 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:43" (1/1) ... [2022-11-26 00:18:43,343 INFO L138 Inliner]: procedures = 179, calls = 58, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 138 [2022-11-26 00:18:43,344 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:18:43,345 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:18:43,345 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:18:43,345 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:18:43,366 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:43" (1/1) ... [2022-11-26 00:18:43,366 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:43" (1/1) ... [2022-11-26 00:18:43,382 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:43" (1/1) ... [2022-11-26 00:18:43,383 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:43" (1/1) ... [2022-11-26 00:18:43,392 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:43" (1/1) ... [2022-11-26 00:18:43,394 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:43" (1/1) ... [2022-11-26 00:18:43,413 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:43" (1/1) ... [2022-11-26 00:18:43,414 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:43" (1/1) ... [2022-11-26 00:18:43,417 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:18:43,418 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:18:43,418 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:18:43,418 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:18:43,419 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:43" (1/1) ... [2022-11-26 00:18:43,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:18:43,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:18:43,483 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:18:43,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:18:43,536 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-26 00:18:43,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:18:43,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:18:43,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:18:43,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-26 00:18:43,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-26 00:18:43,536 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-26 00:18:43,536 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-26 00:18:43,537 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-26 00:18:43,537 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-26 00:18:43,537 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-26 00:18:43,537 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-26 00:18:43,537 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-26 00:18:43,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:18:43,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:18:43,539 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-26 00:18:43,711 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:18:43,713 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:18:44,237 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:18:44,432 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:18:44,433 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:18:44,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:18:44 BoogieIcfgContainer [2022-11-26 00:18:44,436 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:18:44,440 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:18:44,440 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:18:44,443 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:18:44,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:18:42" (1/3) ... [2022-11-26 00:18:44,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77e16a7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:18:44, skipping insertion in model container [2022-11-26 00:18:44,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:18:43" (2/3) ... [2022-11-26 00:18:44,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77e16a7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:18:44, skipping insertion in model container [2022-11-26 00:18:44,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:18:44" (3/3) ... [2022-11-26 00:18:44,449 INFO L112 eAbstractionObserver]: Analyzing ICFG mix035_pso.opt_tso.opt.i [2022-11-26 00:18:44,469 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:18:44,470 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2022-11-26 00:18:44,470 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-26 00:18:44,558 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-26 00:18:44,605 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-26 00:18:44,634 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 137 places, 129 transitions, 273 flow [2022-11-26 00:18:44,641 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 137 places, 129 transitions, 273 flow [2022-11-26 00:18:44,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 137 places, 129 transitions, 273 flow [2022-11-26 00:18:44,733 INFO L130 PetriNetUnfolder]: 2/126 cut-off events. [2022-11-26 00:18:44,735 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-26 00:18:44,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 126 events. 2/126 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 79 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 80. Up to 2 conditions per place. [2022-11-26 00:18:44,748 INFO L119 LiptonReduction]: Number of co-enabled transitions 2220 [2022-11-26 00:18:54,032 INFO L134 LiptonReduction]: Checked pairs total: 5244 [2022-11-26 00:18:54,032 INFO L136 LiptonReduction]: Total number of compositions: 130 [2022-11-26 00:18:54,040 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 43 places, 34 transitions, 83 flow [2022-11-26 00:18:54,117 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 788 states, 777 states have (on average 3.2741312741312742) internal successors, (2544), 787 states have internal predecessors, (2544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:54,134 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:18:54,140 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;@588f95c0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:18:54,140 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-11-26 00:18:54,144 INFO L276 IsEmpty]: Start isEmpty. Operand has 788 states, 777 states have (on average 3.2741312741312742) internal successors, (2544), 787 states have internal predecessors, (2544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:54,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-26 00:18:54,150 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:54,150 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-26 00:18:54,151 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-26 00:18:54,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:54,156 INFO L85 PathProgramCache]: Analyzing trace with hash 538, now seen corresponding path program 1 times [2022-11-26 00:18:54,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:18:54,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [64549314] [2022-11-26 00:18:54,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:54,170 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:18:54,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:18:54,179 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:18:54,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-26 00:18:54,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:18:54,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-26 00:18:54,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:18:54,278 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 00:18:54,278 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:18:54,279 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:18:54,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [64549314] [2022-11-26 00:18:54,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [64549314] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:18:54,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:18:54,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-26 00:18:54,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932415796] [2022-11-26 00:18:54,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:18:54,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:18:54,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:18:54,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:18:54,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:18:54,314 INFO L87 Difference]: Start difference. First operand has 788 states, 777 states have (on average 3.2741312741312742) internal successors, (2544), 787 states have internal predecessors, (2544), 0 states have call successors, (0), 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 00:18:54,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:54,460 INFO L93 Difference]: Finished difference Result 746 states and 2336 transitions. [2022-11-26 00:18:54,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:18:54,463 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 00:18:54,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:54,494 INFO L225 Difference]: With dead ends: 746 [2022-11-26 00:18:54,495 INFO L226 Difference]: Without dead ends: 746 [2022-11-26 00:18:54,511 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 00:18:54,531 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:54,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:18:54,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2022-11-26 00:18:54,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 746. [2022-11-26 00:18:54,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 746 states, 741 states have (on average 3.1524966261808367) internal successors, (2336), 745 states have internal predecessors, (2336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:54,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 2336 transitions. [2022-11-26 00:18:54,669 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 2336 transitions. Word has length 1 [2022-11-26 00:18:54,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:54,670 INFO L495 AbstractCegarLoop]: Abstraction has 746 states and 2336 transitions. [2022-11-26 00:18:54,670 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 00:18:54,670 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 2336 transitions. [2022-11-26 00:18:54,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-26 00:18:54,671 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:54,671 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:18:54,678 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-26 00:18:54,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:18:54,875 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P2Err0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-26 00:18:54,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:54,876 INFO L85 PathProgramCache]: Analyzing trace with hash -66190959, now seen corresponding path program 1 times [2022-11-26 00:18:54,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:18:54,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [562776893] [2022-11-26 00:18:54,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:54,877 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:18:54,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:18:54,883 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:18:54,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-26 00:18:55,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:18:55,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-26 00:18:55,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:18:55,065 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 00:18:55,065 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:18:55,078 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:18:55,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [562776893] [2022-11-26 00:18:55,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [562776893] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:18:55,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:18:55,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 00:18:55,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832777406] [2022-11-26 00:18:55,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:18:55,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:18:55,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:18:55,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:18:55,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:18:55,082 INFO L87 Difference]: Start difference. First operand 746 states and 2336 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 00:18:55,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:55,225 INFO L93 Difference]: Finished difference Result 634 states and 1960 transitions. [2022-11-26 00:18:55,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:18:55,226 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 00:18:55,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:55,231 INFO L225 Difference]: With dead ends: 634 [2022-11-26 00:18:55,232 INFO L226 Difference]: Without dead ends: 618 [2022-11-26 00:18:55,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 00:18:55,233 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 10 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:55,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 4 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:18:55,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2022-11-26 00:18:55,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 618. [2022-11-26 00:18:55,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 616 states have (on average 3.116883116883117) internal successors, (1920), 617 states have internal predecessors, (1920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:55,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 1920 transitions. [2022-11-26 00:18:55,289 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 1920 transitions. Word has length 7 [2022-11-26 00:18:55,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:55,291 INFO L495 AbstractCegarLoop]: Abstraction has 618 states and 1920 transitions. [2022-11-26 00:18:55,291 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 00:18:55,291 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 1920 transitions. [2022-11-26 00:18:55,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-26 00:18:55,293 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:55,293 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:18:55,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-26 00:18:55,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:18:55,505 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-26 00:18:55,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:55,506 INFO L85 PathProgramCache]: Analyzing trace with hash -502547837, now seen corresponding path program 1 times [2022-11-26 00:18:55,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:18:55,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [295668429] [2022-11-26 00:18:55,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:55,507 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:18:55,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:18:55,509 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:18:55,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-26 00:18:55,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:18:55,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-26 00:18:55,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:18:55,657 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 00:18:55,657 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:18:55,658 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:18:55,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [295668429] [2022-11-26 00:18:55,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [295668429] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:18:55,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:18:55,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:18:55,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079385314] [2022-11-26 00:18:55,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:18:55,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:18:55,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:18:55,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:18:55,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:18:55,661 INFO L87 Difference]: Start difference. First operand 618 states and 1920 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:55,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:55,812 INFO L93 Difference]: Finished difference Result 489 states and 1289 transitions. [2022-11-26 00:18:55,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:18:55,813 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2022-11-26 00:18:55,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:55,815 INFO L225 Difference]: With dead ends: 489 [2022-11-26 00:18:55,816 INFO L226 Difference]: Without dead ends: 393 [2022-11-26 00:18:55,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:18:55,820 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 40 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:55,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 6 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:18:55,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2022-11-26 00:18:55,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2022-11-26 00:18:55,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 391 states have (on average 2.608695652173913) internal successors, (1020), 392 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:55,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 1020 transitions. [2022-11-26 00:18:55,840 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 1020 transitions. Word has length 10 [2022-11-26 00:18:55,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:55,841 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 1020 transitions. [2022-11-26 00:18:55,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:55,841 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 1020 transitions. [2022-11-26 00:18:55,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-26 00:18:55,845 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:55,846 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:18:55,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-26 00:18:56,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:18:56,058 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-26 00:18:56,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:56,058 INFO L85 PathProgramCache]: Analyzing trace with hash -178260972, now seen corresponding path program 1 times [2022-11-26 00:18:56,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:18:56,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1081834259] [2022-11-26 00:18:56,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:56,059 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:18:56,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:18:56,062 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:18:56,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-26 00:18:56,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:18:56,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-26 00:18:56,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:18:56,243 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 00:18:56,243 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:18:56,244 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:18:56,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1081834259] [2022-11-26 00:18:56,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1081834259] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:18:56,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:18:56,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:18:56,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36585484] [2022-11-26 00:18:56,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:18:56,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:18:56,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:18:56,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:18:56,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:18:56,246 INFO L87 Difference]: Start difference. First operand 393 states and 1020 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:56,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:56,425 INFO L93 Difference]: Finished difference Result 249 states and 563 transitions. [2022-11-26 00:18:56,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:18:56,426 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 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 13 [2022-11-26 00:18:56,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:56,427 INFO L225 Difference]: With dead ends: 249 [2022-11-26 00:18:56,427 INFO L226 Difference]: Without dead ends: 198 [2022-11-26 00:18:56,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:18:56,428 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 63 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:56,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 10 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:18:56,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2022-11-26 00:18:56,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2022-11-26 00:18:56,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 196 states have (on average 2.2193877551020407) internal successors, (435), 197 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:56,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 435 transitions. [2022-11-26 00:18:56,436 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 435 transitions. Word has length 13 [2022-11-26 00:18:56,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:56,437 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 435 transitions. [2022-11-26 00:18:56,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:56,437 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 435 transitions. [2022-11-26 00:18:56,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-26 00:18:56,438 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:56,438 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:18:56,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-26 00:18:56,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:18:56,650 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-26 00:18:56,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:56,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1884070218, now seen corresponding path program 1 times [2022-11-26 00:18:56,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:18:56,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [80050921] [2022-11-26 00:18:56,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:56,652 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:18:56,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:18:56,653 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:18:56,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-26 00:18:56,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:18:56,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-26 00:18:56,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:18:56,858 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 00:18:56,859 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:18:56,859 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:18:56,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [80050921] [2022-11-26 00:18:56,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [80050921] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:18:56,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:18:56,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:18:56,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613813790] [2022-11-26 00:18:56,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:18:56,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:18:56,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:18:56,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:18:56,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:18:56,862 INFO L87 Difference]: Start difference. First operand 198 states and 435 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:57,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:57,075 INFO L93 Difference]: Finished difference Result 155 states and 347 transitions. [2022-11-26 00:18:57,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:18:57,076 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 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 16 [2022-11-26 00:18:57,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:57,077 INFO L225 Difference]: With dead ends: 155 [2022-11-26 00:18:57,077 INFO L226 Difference]: Without dead ends: 143 [2022-11-26 00:18:57,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-26 00:18:57,078 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 71 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:57,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 18 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:18:57,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2022-11-26 00:18:57,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2022-11-26 00:18:57,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 141 states have (on average 2.3049645390070923) internal successors, (325), 142 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:57,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 325 transitions. [2022-11-26 00:18:57,085 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 325 transitions. Word has length 16 [2022-11-26 00:18:57,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:57,085 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 325 transitions. [2022-11-26 00:18:57,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:57,086 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 325 transitions. [2022-11-26 00:18:57,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-26 00:18:57,087 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:57,089 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] [2022-11-26 00:18:57,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-26 00:18:57,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:18:57,301 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-26 00:18:57,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:57,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1212636460, now seen corresponding path program 1 times [2022-11-26 00:18:57,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:18:57,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [899565112] [2022-11-26 00:18:57,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:57,302 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:18:57,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:18:57,304 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:18:57,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-26 00:18:57,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:18:57,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-26 00:18:57,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:18:57,919 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 00:18:57,920 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:18:57,920 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:18:57,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [899565112] [2022-11-26 00:18:57,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [899565112] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:18:57,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:18:57,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:18:57,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962889888] [2022-11-26 00:18:57,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:18:57,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:18:57,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:18:57,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:18:57,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:18:57,922 INFO L87 Difference]: Start difference. First operand 143 states and 325 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:58,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:58,139 INFO L93 Difference]: Finished difference Result 142 states and 324 transitions. [2022-11-26 00:18:58,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:18:58,140 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 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 21 [2022-11-26 00:18:58,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:58,141 INFO L225 Difference]: With dead ends: 142 [2022-11-26 00:18:58,141 INFO L226 Difference]: Without dead ends: 142 [2022-11-26 00:18:58,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:18:58,142 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 10 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:58,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 12 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:18:58,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-11-26 00:18:58,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2022-11-26 00:18:58,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 141 states have (on average 2.297872340425532) internal successors, (324), 141 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:58,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 324 transitions. [2022-11-26 00:18:58,147 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 324 transitions. Word has length 21 [2022-11-26 00:18:58,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:58,147 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 324 transitions. [2022-11-26 00:18:58,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:58,147 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 324 transitions. [2022-11-26 00:18:58,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-26 00:18:58,148 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:58,148 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] [2022-11-26 00:18:58,167 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-11-26 00:18:58,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:18:58,362 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-26 00:18:58,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:58,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1212636487, now seen corresponding path program 1 times [2022-11-26 00:18:58,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:18:58,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [752275097] [2022-11-26 00:18:58,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:18:58,363 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:18:58,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:18:58,365 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:18:58,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-26 00:18:58,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:18:58,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-26 00:18:58,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:18:58,649 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 00:18:58,649 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:18:58,650 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:18:58,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [752275097] [2022-11-26 00:18:58,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [752275097] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:18:58,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:18:58,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:18:58,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631606238] [2022-11-26 00:18:58,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:18:58,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-26 00:18:58,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:18:58,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-26 00:18:58,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:18:58,653 INFO L87 Difference]: Start difference. First operand 142 states and 324 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:58,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:58,868 INFO L93 Difference]: Finished difference Result 161 states and 355 transitions. [2022-11-26 00:18:58,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-26 00:18:58,868 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 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 21 [2022-11-26 00:18:58,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:58,870 INFO L225 Difference]: With dead ends: 161 [2022-11-26 00:18:58,870 INFO L226 Difference]: Without dead ends: 126 [2022-11-26 00:18:58,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-26 00:18:58,871 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 26 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:58,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 20 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:18:58,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2022-11-26 00:18:58,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2022-11-26 00:18:58,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 125 states have (on average 2.24) internal successors, (280), 125 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:58,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 280 transitions. [2022-11-26 00:18:58,876 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 280 transitions. Word has length 21 [2022-11-26 00:18:58,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:58,876 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 280 transitions. [2022-11-26 00:18:58,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:58,877 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 280 transitions. [2022-11-26 00:18:58,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-26 00:18:58,877 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:58,877 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] [2022-11-26 00:18:58,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-26 00:18:59,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:18:59,090 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-26 00:18:59,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:59,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1432241959, now seen corresponding path program 2 times [2022-11-26 00:18:59,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:18:59,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [6397723] [2022-11-26 00:18:59,091 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-26 00:18:59,091 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:18:59,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:18:59,102 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:18:59,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-26 00:18:59,246 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-26 00:18:59,246 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:18:59,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-26 00:18:59,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:18:59,293 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 00:18:59,293 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:18:59,294 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:18:59,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [6397723] [2022-11-26 00:18:59,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [6397723] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:18:59,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:18:59,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:18:59,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422500103] [2022-11-26 00:18:59,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:18:59,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:18:59,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:18:59,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:18:59,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:18:59,298 INFO L87 Difference]: Start difference. First operand 126 states and 280 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:59,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:18:59,471 INFO L93 Difference]: Finished difference Result 173 states and 371 transitions. [2022-11-26 00:18:59,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:18:59,472 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 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 21 [2022-11-26 00:18:59,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:18:59,473 INFO L225 Difference]: With dead ends: 173 [2022-11-26 00:18:59,473 INFO L226 Difference]: Without dead ends: 82 [2022-11-26 00:18:59,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-26 00:18:59,474 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 25 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:18:59,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 11 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:18:59,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-11-26 00:18:59,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2022-11-26 00:18:59,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 81 states have (on average 1.9506172839506173) internal successors, (158), 81 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:59,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 158 transitions. [2022-11-26 00:18:59,478 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 158 transitions. Word has length 21 [2022-11-26 00:18:59,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:18:59,478 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 158 transitions. [2022-11-26 00:18:59,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:18:59,478 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 158 transitions. [2022-11-26 00:18:59,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-26 00:18:59,478 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:18:59,479 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] [2022-11-26 00:18:59,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-26 00:18:59,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:18:59,679 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-26 00:18:59,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:18:59,680 INFO L85 PathProgramCache]: Analyzing trace with hash 914542323, now seen corresponding path program 3 times [2022-11-26 00:18:59,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:18:59,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [478044516] [2022-11-26 00:18:59,680 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-26 00:18:59,681 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:18:59,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:18:59,682 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:18:59,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-26 00:18:59,848 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-26 00:18:59,848 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-11-26 00:18:59,849 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:18:59,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:19:00,012 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-26 00:19:00,013 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:19:00,014 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (12 of 13 remaining) [2022-11-26 00:19:00,015 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (11 of 13 remaining) [2022-11-26 00:19:00,031 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 13 remaining) [2022-11-26 00:19:00,031 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 13 remaining) [2022-11-26 00:19:00,031 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 13 remaining) [2022-11-26 00:19:00,031 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 13 remaining) [2022-11-26 00:19:00,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 13 remaining) [2022-11-26 00:19:00,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 13 remaining) [2022-11-26 00:19:00,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (4 of 13 remaining) [2022-11-26 00:19:00,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 13 remaining) [2022-11-26 00:19:00,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 13 remaining) [2022-11-26 00:19:00,033 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 13 remaining) [2022-11-26 00:19:00,033 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 13 remaining) [2022-11-26 00:19:00,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-26 00:19:00,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:19:00,235 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1] [2022-11-26 00:19:00,239 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-26 00:19:00,239 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:19:00,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:19:00 BasicIcfg [2022-11-26 00:19:00,331 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:19:00,332 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:19:00,332 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:19:00,332 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:19:00,333 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:18:44" (3/4) ... [2022-11-26 00:19:00,335 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 00:19:00,336 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:19:00,336 INFO L158 Benchmark]: Toolchain (without parser) took 17677.17ms. Allocated memory was 79.7MB in the beginning and 121.6MB in the end (delta: 41.9MB). Free memory was 37.2MB in the beginning and 46.5MB in the end (delta: -9.3MB). Peak memory consumption was 36.2MB. Max. memory is 16.1GB. [2022-11-26 00:19:00,337 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 79.7MB. Free memory is still 58.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:19:00,337 INFO L158 Benchmark]: CACSL2BoogieTranslator took 630.50ms. Allocated memory is still 79.7MB. Free memory was 37.2MB in the beginning and 36.6MB in the end (delta: 537.7kB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2022-11-26 00:19:00,337 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.69ms. Allocated memory is still 79.7MB. Free memory was 36.6MB in the beginning and 34.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:19:00,338 INFO L158 Benchmark]: Boogie Preprocessor took 72.93ms. Allocated memory is still 79.7MB. Free memory was 34.2MB in the beginning and 58.3MB in the end (delta: -24.1MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2022-11-26 00:19:00,338 INFO L158 Benchmark]: RCFGBuilder took 1017.70ms. Allocated memory was 79.7MB in the beginning and 100.7MB in the end (delta: 21.0MB). Free memory was 58.3MB in the beginning and 69.5MB in the end (delta: -11.2MB). Peak memory consumption was 31.6MB. Max. memory is 16.1GB. [2022-11-26 00:19:00,338 INFO L158 Benchmark]: TraceAbstraction took 15891.92ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 68.9MB in the beginning and 46.5MB in the end (delta: 22.4MB). Peak memory consumption was 43.0MB. Max. memory is 16.1GB. [2022-11-26 00:19:00,339 INFO L158 Benchmark]: Witness Printer took 3.83ms. Allocated memory is still 121.6MB. Free memory was 46.5MB in the beginning and 46.5MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:19:00,341 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 79.7MB. Free memory is still 58.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 630.50ms. Allocated memory is still 79.7MB. Free memory was 37.2MB in the beginning and 36.6MB in the end (delta: 537.7kB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.69ms. Allocated memory is still 79.7MB. Free memory was 36.6MB in the beginning and 34.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.93ms. Allocated memory is still 79.7MB. Free memory was 34.2MB in the beginning and 58.3MB in the end (delta: -24.1MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1017.70ms. Allocated memory was 79.7MB in the beginning and 100.7MB in the end (delta: 21.0MB). Free memory was 58.3MB in the beginning and 69.5MB in the end (delta: -11.2MB). Peak memory consumption was 31.6MB. Max. memory is 16.1GB. * TraceAbstraction took 15891.92ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 68.9MB in the beginning and 46.5MB in the end (delta: 22.4MB). Peak memory consumption was 43.0MB. Max. memory is 16.1GB. * Witness Printer took 3.83ms. Allocated memory is still 121.6MB. Free memory was 46.5MB in the beginning and 46.5MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.4s, 137 PlacesBefore, 43 PlacesAfterwards, 129 TransitionsBefore, 34 TransitionsAfterwards, 2220 CoEnabledTransitionPairs, 7 FixpointIterations, 54 TrivialSequentialCompositions, 66 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 130 TotalNumberOfCompositions, 5244 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2932, independent: 2777, independent conditional: 0, independent unconditional: 2777, dependent: 155, dependent conditional: 0, dependent unconditional: 155, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1605, independent: 1567, independent conditional: 0, independent unconditional: 1567, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1605, independent: 1557, independent conditional: 0, independent unconditional: 1557, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 48, independent: 10, independent conditional: 0, independent unconditional: 10, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 279, independent: 39, independent conditional: 0, independent unconditional: 39, dependent: 241, dependent conditional: 0, dependent unconditional: 241, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2932, independent: 1210, independent conditional: 0, independent unconditional: 1210, dependent: 117, dependent conditional: 0, dependent unconditional: 117, unknown: 1605, unknown conditional: 0, unknown unconditional: 1605] , Statistics on independence cache: Total cache size (in pairs): 163, Positive cache size: 147, Positive conditional cache size: 0, Positive unconditional cache size: 147, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p0_EAX = 0; [L713] 0 int __unbuffered_p1_EAX = 0; [L715] 0 int __unbuffered_p2_EAX = 0; [L717] 0 int __unbuffered_p2_EBX = 0; [L719] 0 int a = 0; [L720] 0 _Bool main$tmp_guard0; [L721] 0 _Bool main$tmp_guard1; [L723] 0 int x = 0; [L725] 0 int y = 0; [L726] 0 _Bool y$flush_delayed; [L727] 0 int y$mem_tmp; [L728] 0 _Bool y$r_buff0_thd0; [L729] 0 _Bool y$r_buff0_thd1; [L730] 0 _Bool y$r_buff0_thd2; [L731] 0 _Bool y$r_buff0_thd3; [L732] 0 _Bool y$r_buff1_thd0; [L733] 0 _Bool y$r_buff1_thd1; [L734] 0 _Bool y$r_buff1_thd2; [L735] 0 _Bool y$r_buff1_thd3; [L736] 0 _Bool y$read_delayed; [L737] 0 int *y$read_delayed_var; [L738] 0 int y$w_buff0; [L739] 0 _Bool y$w_buff0_used; [L740] 0 int y$w_buff1; [L741] 0 _Bool y$w_buff1_used; [L743] 0 int z = 0; [L744] 0 _Bool weak$$choice0; [L745] 0 _Bool weak$$choice2; [L835] 0 pthread_t t922; [L836] FCALL, FORK 0 pthread_create(&t922, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t922, ((void *)0), P0, ((void *)0))=0, t922={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L837] 0 pthread_t t923; [L838] FCALL, FORK 0 pthread_create(&t923, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t923, ((void *)0), P1, ((void *)0))=1, t922={3:0}, t923={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L839] 0 pthread_t t924; [L840] FCALL, FORK 0 pthread_create(&t924, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t924, ((void *)0), P2, ((void *)0))=2, t922={3:0}, t923={7:0}, t924={11:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L792] 3 y$w_buff1 = y$w_buff0 [L793] 3 y$w_buff0 = 1 [L794] 3 y$w_buff1_used = y$w_buff0_used [L795] 3 y$w_buff0_used = (_Bool)1 [L796] CALL 3 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L18] COND FALSE 3 !(!expression) [L796] RET 3 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L797] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L798] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L799] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L800] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L801] 3 y$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L804] 3 z = 1 [L807] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L810] 3 __unbuffered_p2_EBX = a VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L749] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L752] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L757] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L759] 1 return 0; [L764] 2 x = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L767] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L768] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L769] 2 y$flush_delayed = weak$$choice2 [L770] 2 y$mem_tmp = y [L771] 2 y = !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L772] 2 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L773] 2 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L774] 2 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L775] 2 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L776] 2 y$r_buff0_thd2 = weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L777] 2 y$r_buff1_thd2 = weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L778] 2 __unbuffered_p1_EAX = y [L779] 2 y = y$flush_delayed ? y$mem_tmp : y [L780] 2 y$flush_delayed = (_Bool)0 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L785] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L787] 2 return 0; [L813] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L814] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L815] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L816] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L817] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L820] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L822] 3 return 0; [L842] 0 main$tmp_guard0 = __unbuffered_cnt == 3 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t922={3:0}, t923={7:0}, t924={11:0}, weak$$choice0=2, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L844] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L844] RET 0 assume_abort_if_not(main$tmp_guard0) [L846] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L847] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L848] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L849] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L850] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t922={3:0}, t923={7:0}, t924={11:0}, weak$$choice0=2, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L853] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 0 && __unbuffered_p2_EAX == 1 && __unbuffered_p2_EBX == 0) [L855] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=1, \old(expression)=0, \result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 833]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 836]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 838]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 840]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 156 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 15.6s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 245 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 245 mSDsluCounter, 83 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 54 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 663 IncrementalHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 29 mSDtfsCounter, 663 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 114 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=788occurred in iteration=0, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 131 NumberOfCodeBlocks, 131 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 102 ConstructedInterpolants, 16 QuantifiedInterpolants, 963 SizeOfPredicates, 15 NumberOfNonLiveVariables, 972 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-26 00:19:00,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fbb0af3-adc7-413e-861b-9a1f7650a759/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample