./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/test-easy10.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d77c3030-9e9a-4215-ad2b-9ce22bb482b7/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d77c3030-9e9a-4215-ad2b-9ce22bb482b7/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d77c3030-9e9a-4215-ad2b-9ce22bb482b7/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d77c3030-9e9a-4215-ad2b-9ce22bb482b7/bin/uautomizer-tPACEb0tL8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/test-easy10.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d77c3030-9e9a-4215-ad2b-9ce22bb482b7/bin/uautomizer-tPACEb0tL8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d77c3030-9e9a-4215-ad2b-9ce22bb482b7/bin/uautomizer-tPACEb0tL8 --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5b38e7cb0150abfd3f300ad6ccdd66bb35d80de0668e553c35b4b9d13b84c85b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:24:52,844 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:24:52,846 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:24:52,877 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:24:52,878 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:24:52,879 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:24:52,880 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:24:52,882 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:24:52,884 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:24:52,884 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:24:52,885 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:24:52,893 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:24:52,894 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:24:52,901 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:24:52,902 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:24:52,903 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:24:52,904 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:24:52,905 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:24:52,906 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:24:52,908 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:24:52,909 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:24:52,915 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:24:52,920 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:24:52,921 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:24:52,936 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:24:52,936 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:24:52,936 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:24:52,937 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:24:52,938 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:24:52,938 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:24:52,939 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:24:52,939 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:24:52,940 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:24:52,941 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:24:52,942 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:24:52,942 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:24:52,943 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:24:52,943 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:24:52,943 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:24:52,944 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:24:52,945 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:24:52,950 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d77c3030-9e9a-4215-ad2b-9ce22bb482b7/bin/uautomizer-tPACEb0tL8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-16 11:24:52,992 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:24:52,992 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:24:52,993 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:24:52,993 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:24:52,994 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:24:52,994 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:24:52,995 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:24:52,995 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:24:52,995 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:24:52,996 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:24:52,997 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:24:52,997 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:24:52,997 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:24:52,997 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:24:52,998 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:24:52,998 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-16 11:24:52,998 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-16 11:24:52,998 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-16 11:24:52,999 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:24:52,999 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 11:24:52,999 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:24:52,999 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:24:52,999 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:24:53,000 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:24:53,001 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:24:53,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:24:53,001 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:24:53,001 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:24:53,001 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:24:53,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:24:53,002 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_d77c3030-9e9a-4215-ad2b-9ce22bb482b7/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d77c3030-9e9a-4215-ad2b-9ce22bb482b7/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b38e7cb0150abfd3f300ad6ccdd66bb35d80de0668e553c35b4b9d13b84c85b [2022-11-16 11:24:53,284 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:24:53,312 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:24:53,316 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:24:53,318 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:24:53,319 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:24:53,320 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d77c3030-9e9a-4215-ad2b-9ce22bb482b7/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/weaver/test-easy10.wvr.c [2022-11-16 11:24:53,399 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d77c3030-9e9a-4215-ad2b-9ce22bb482b7/bin/uautomizer-tPACEb0tL8/data/76439d762/50a218ad45c3468ab0b996e1113442ae/FLAG7162e71df [2022-11-16 11:24:53,964 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:24:53,967 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d77c3030-9e9a-4215-ad2b-9ce22bb482b7/sv-benchmarks/c/weaver/test-easy10.wvr.c [2022-11-16 11:24:53,977 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d77c3030-9e9a-4215-ad2b-9ce22bb482b7/bin/uautomizer-tPACEb0tL8/data/76439d762/50a218ad45c3468ab0b996e1113442ae/FLAG7162e71df [2022-11-16 11:24:54,298 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d77c3030-9e9a-4215-ad2b-9ce22bb482b7/bin/uautomizer-tPACEb0tL8/data/76439d762/50a218ad45c3468ab0b996e1113442ae [2022-11-16 11:24:54,301 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:24:54,302 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:24:54,311 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:24:54,311 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:24:54,315 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:24:54,315 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:24:54" (1/1) ... [2022-11-16 11:24:54,317 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fb04c71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:54, skipping insertion in model container [2022-11-16 11:24:54,317 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:24:54" (1/1) ... [2022-11-16 11:24:54,325 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:24:54,347 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:24:54,554 WARN L229 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_d77c3030-9e9a-4215-ad2b-9ce22bb482b7/sv-benchmarks/c/weaver/test-easy10.wvr.c[3907,3920] [2022-11-16 11:24:54,558 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:24:54,567 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:24:54,597 WARN L229 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_d77c3030-9e9a-4215-ad2b-9ce22bb482b7/sv-benchmarks/c/weaver/test-easy10.wvr.c[3907,3920] [2022-11-16 11:24:54,599 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:24:54,612 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:24:54,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:54 WrapperNode [2022-11-16 11:24:54,613 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:24:54,614 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:24:54,614 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:24:54,614 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:24:54,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:54" (1/1) ... [2022-11-16 11:24:54,630 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:54" (1/1) ... [2022-11-16 11:24:54,658 INFO L138 Inliner]: procedures = 23, calls = 84, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 188 [2022-11-16 11:24:54,659 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:24:54,659 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:24:54,659 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:24:54,660 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:24:54,667 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:54" (1/1) ... [2022-11-16 11:24:54,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:54" (1/1) ... [2022-11-16 11:24:54,671 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:54" (1/1) ... [2022-11-16 11:24:54,671 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:54" (1/1) ... [2022-11-16 11:24:54,677 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:54" (1/1) ... [2022-11-16 11:24:54,682 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:54" (1/1) ... [2022-11-16 11:24:54,690 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:54" (1/1) ... [2022-11-16 11:24:54,697 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:54" (1/1) ... [2022-11-16 11:24:54,700 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:24:54,701 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:24:54,701 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:24:54,701 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:24:54,711 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:54" (1/1) ... [2022-11-16 11:24:54,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:24:54,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d77c3030-9e9a-4215-ad2b-9ce22bb482b7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:24:54,742 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d77c3030-9e9a-4215-ad2b-9ce22bb482b7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:24:54,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d77c3030-9e9a-4215-ad2b-9ce22bb482b7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:24:54,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:24:54,787 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 11:24:54,788 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 11:24:54,788 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 11:24:54,788 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 11:24:54,788 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-16 11:24:54,788 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-16 11:24:54,788 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-16 11:24:54,788 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-16 11:24:54,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:24:54,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:24:54,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:24:54,790 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 11:24:54,790 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 11:24:54,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:24:54,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:24:54,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:24:54,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:24:54,792 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:24:54,936 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:24:54,939 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:24:55,395 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:24:55,495 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:24:55,496 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:24:55,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:24:55 BoogieIcfgContainer [2022-11-16 11:24:55,499 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:24:55,501 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:24:55,502 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:24:55,519 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:24:55,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:24:54" (1/3) ... [2022-11-16 11:24:55,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28c6bb1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:24:55, skipping insertion in model container [2022-11-16 11:24:55,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:54" (2/3) ... [2022-11-16 11:24:55,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28c6bb1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:24:55, skipping insertion in model container [2022-11-16 11:24:55,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:24:55" (3/3) ... [2022-11-16 11:24:55,523 INFO L112 eAbstractionObserver]: Analyzing ICFG test-easy10.wvr.c [2022-11-16 11:24:55,543 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:24:55,544 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-16 11:24:55,544 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:24:55,718 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-16 11:24:55,778 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-16 11:24:55,792 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 169 places, 158 transitions, 348 flow [2022-11-16 11:24:55,795 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 169 places, 158 transitions, 348 flow [2022-11-16 11:24:55,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 169 places, 158 transitions, 348 flow [2022-11-16 11:24:55,904 INFO L130 PetriNetUnfolder]: 2/154 cut-off events. [2022-11-16 11:24:55,906 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-16 11:24:55,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 154 events. 2/154 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 131 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 104. Up to 2 conditions per place. [2022-11-16 11:24:55,929 INFO L119 LiptonReduction]: Number of co-enabled transitions 2336 [2022-11-16 11:25:03,399 INFO L134 LiptonReduction]: Checked pairs total: 8134 [2022-11-16 11:25:03,399 INFO L136 LiptonReduction]: Total number of compositions: 145 [2022-11-16 11:25:03,410 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 68 places, 55 transitions, 142 flow [2022-11-16 11:25:03,693 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3747 states, 3729 states have (on average 3.720568517028694) internal successors, (13874), 3746 states have internal predecessors, (13874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:03,721 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:25:03,735 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;@2625bd2b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:25:03,736 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-11-16 11:25:03,754 INFO L276 IsEmpty]: Start isEmpty. Operand has 3747 states, 3729 states have (on average 3.720568517028694) internal successors, (13874), 3746 states have internal predecessors, (13874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:03,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-16 11:25:03,761 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:25:03,762 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-16 11:25:03,764 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:25:03,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:03,775 INFO L85 PathProgramCache]: Analyzing trace with hash 608, now seen corresponding path program 1 times [2022-11-16 11:25:03,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:03,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746696013] [2022-11-16 11:25:03,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:03,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:03,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:03,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:03,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:03,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746696013] [2022-11-16 11:25:03,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746696013] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:03,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:03,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-16 11:25:03,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805523710] [2022-11-16 11:25:03,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:03,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 11:25:03,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:03,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 11:25:03,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:25:03,980 INFO L87 Difference]: Start difference. First operand has 3747 states, 3729 states have (on average 3.720568517028694) internal successors, (13874), 3746 states have internal predecessors, (13874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:04,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:25:04,201 INFO L93 Difference]: Finished difference Result 3744 states and 13871 transitions. [2022-11-16 11:25:04,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 11:25:04,203 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 [2022-11-16 11:25:04,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:25:04,277 INFO L225 Difference]: With dead ends: 3744 [2022-11-16 11:25:04,277 INFO L226 Difference]: Without dead ends: 3744 [2022-11-16 11:25:04,278 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 [2022-11-16 11:25:04,285 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:25:04,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:25:04,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3744 states. [2022-11-16 11:25:04,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3744 to 3744. [2022-11-16 11:25:04,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3744 states, 3729 states have (on average 3.71976401179941) internal successors, (13871), 3743 states have internal predecessors, (13871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:04,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3744 states to 3744 states and 13871 transitions. [2022-11-16 11:25:04,623 INFO L78 Accepts]: Start accepts. Automaton has 3744 states and 13871 transitions. Word has length 1 [2022-11-16 11:25:04,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:25:04,625 INFO L495 AbstractCegarLoop]: Abstraction has 3744 states and 13871 transitions. [2022-11-16 11:25:04,629 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) [2022-11-16 11:25:04,631 INFO L276 IsEmpty]: Start isEmpty. Operand 3744 states and 13871 transitions. [2022-11-16 11:25:04,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-16 11:25:04,632 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:25:04,632 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-16 11:25:04,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:25:04,634 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:25:04,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:04,635 INFO L85 PathProgramCache]: Analyzing trace with hash 596981, now seen corresponding path program 1 times [2022-11-16 11:25:04,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:04,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951422268] [2022-11-16 11:25:04,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:04,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:04,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:05,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:05,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:05,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951422268] [2022-11-16 11:25:05,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951422268] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:05,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:05,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 11:25:05,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231738395] [2022-11-16 11:25:05,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:05,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:25:05,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:05,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:25:05,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:25:05,104 INFO L87 Difference]: Start difference. First operand 3744 states and 13871 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:05,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:25:05,247 INFO L93 Difference]: Finished difference Result 3614 states and 13437 transitions. [2022-11-16 11:25:05,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:25:05,248 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-16 11:25:05,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:25:05,283 INFO L225 Difference]: With dead ends: 3614 [2022-11-16 11:25:05,283 INFO L226 Difference]: Without dead ends: 3614 [2022-11-16 11:25:05,284 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 [2022-11-16 11:25:05,285 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 43 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:25:05,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 4 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:25:05,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3614 states. [2022-11-16 11:25:05,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3614 to 3614. [2022-11-16 11:25:05,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3614 states, 3601 states have (on average 3.7314634823660096) internal successors, (13437), 3613 states have internal predecessors, (13437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:05,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3614 states to 3614 states and 13437 transitions. [2022-11-16 11:25:05,554 INFO L78 Accepts]: Start accepts. Automaton has 3614 states and 13437 transitions. Word has length 3 [2022-11-16 11:25:05,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:25:05,555 INFO L495 AbstractCegarLoop]: Abstraction has 3614 states and 13437 transitions. [2022-11-16 11:25:05,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:05,556 INFO L276 IsEmpty]: Start isEmpty. Operand 3614 states and 13437 transitions. [2022-11-16 11:25:05,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-16 11:25:05,557 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:25:05,557 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-16 11:25:05,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:25:05,558 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:25:05,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:05,558 INFO L85 PathProgramCache]: Analyzing trace with hash 596982, now seen corresponding path program 1 times [2022-11-16 11:25:05,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:05,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4625771] [2022-11-16 11:25:05,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:05,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:05,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:05,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:05,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:05,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4625771] [2022-11-16 11:25:05,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4625771] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:05,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:05,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 11:25:05,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885372658] [2022-11-16 11:25:05,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:05,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:25:05,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:05,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:25:05,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:25:05,846 INFO L87 Difference]: Start difference. First operand 3614 states and 13437 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:05,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:25:05,980 INFO L93 Difference]: Finished difference Result 3484 states and 13003 transitions. [2022-11-16 11:25:05,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:25:05,981 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-16 11:25:05,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:25:06,016 INFO L225 Difference]: With dead ends: 3484 [2022-11-16 11:25:06,017 INFO L226 Difference]: Without dead ends: 3484 [2022-11-16 11:25:06,018 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 [2022-11-16 11:25:06,020 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 41 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:25:06,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 4 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:25:06,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3484 states. [2022-11-16 11:25:06,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3484 to 3484. [2022-11-16 11:25:06,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3484 states, 3473 states have (on average 3.7440253383242155) internal successors, (13003), 3483 states have internal predecessors, (13003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:06,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3484 states to 3484 states and 13003 transitions. [2022-11-16 11:25:06,218 INFO L78 Accepts]: Start accepts. Automaton has 3484 states and 13003 transitions. Word has length 3 [2022-11-16 11:25:06,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:25:06,220 INFO L495 AbstractCegarLoop]: Abstraction has 3484 states and 13003 transitions. [2022-11-16 11:25:06,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:06,220 INFO L276 IsEmpty]: Start isEmpty. Operand 3484 states and 13003 transitions. [2022-11-16 11:25:06,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-16 11:25:06,221 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:25:06,222 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-16 11:25:06,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:25:06,222 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:25:06,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:06,223 INFO L85 PathProgramCache]: Analyzing trace with hash 573714438, now seen corresponding path program 1 times [2022-11-16 11:25:06,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:06,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513070343] [2022-11-16 11:25:06,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:06,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:06,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:06,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:06,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:06,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513070343] [2022-11-16 11:25:06,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513070343] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:06,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:06,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 11:25:06,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696075865] [2022-11-16 11:25:06,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:06,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:25:06,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:06,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:25:06,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:25:06,387 INFO L87 Difference]: Start difference. First operand 3484 states and 13003 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:06,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:25:06,542 INFO L93 Difference]: Finished difference Result 3434 states and 12873 transitions. [2022-11-16 11:25:06,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:25:06,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-16 11:25:06,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:25:06,568 INFO L225 Difference]: With dead ends: 3434 [2022-11-16 11:25:06,569 INFO L226 Difference]: Without dead ends: 3434 [2022-11-16 11:25:06,569 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 [2022-11-16 11:25:06,570 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 37 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:25:06,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 4 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:25:06,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3434 states. [2022-11-16 11:25:06,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3434 to 3434. [2022-11-16 11:25:06,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3434 states, 3425 states have (on average 3.7585401459854015) internal successors, (12873), 3433 states have internal predecessors, (12873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:06,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3434 states to 3434 states and 12873 transitions. [2022-11-16 11:25:06,763 INFO L78 Accepts]: Start accepts. Automaton has 3434 states and 12873 transitions. Word has length 5 [2022-11-16 11:25:06,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:25:06,764 INFO L495 AbstractCegarLoop]: Abstraction has 3434 states and 12873 transitions. [2022-11-16 11:25:06,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:06,765 INFO L276 IsEmpty]: Start isEmpty. Operand 3434 states and 12873 transitions. [2022-11-16 11:25:06,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-16 11:25:06,765 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:25:06,766 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-16 11:25:06,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:25:06,766 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:25:06,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:06,767 INFO L85 PathProgramCache]: Analyzing trace with hash 573714439, now seen corresponding path program 1 times [2022-11-16 11:25:06,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:06,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626015570] [2022-11-16 11:25:06,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:06,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:06,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:06,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:06,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:06,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626015570] [2022-11-16 11:25:06,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626015570] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:06,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:06,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 11:25:06,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968038565] [2022-11-16 11:25:06,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:06,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:25:06,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:06,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:25:06,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:25:06,844 INFO L87 Difference]: Start difference. First operand 3434 states and 12873 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:06,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:25:06,949 INFO L93 Difference]: Finished difference Result 3384 states and 12743 transitions. [2022-11-16 11:25:06,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:25:06,950 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-16 11:25:06,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:25:06,972 INFO L225 Difference]: With dead ends: 3384 [2022-11-16 11:25:06,972 INFO L226 Difference]: Without dead ends: 3384 [2022-11-16 11:25:06,973 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 [2022-11-16 11:25:06,974 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 35 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:25:06,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 4 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:25:06,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3384 states. [2022-11-16 11:25:07,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3384 to 3384. [2022-11-16 11:25:07,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3384 states, 3377 states have (on average 3.7734675747705064) internal successors, (12743), 3383 states have internal predecessors, (12743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:07,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3384 states to 3384 states and 12743 transitions. [2022-11-16 11:25:07,337 INFO L78 Accepts]: Start accepts. Automaton has 3384 states and 12743 transitions. Word has length 5 [2022-11-16 11:25:07,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:25:07,337 INFO L495 AbstractCegarLoop]: Abstraction has 3384 states and 12743 transitions. [2022-11-16 11:25:07,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:07,338 INFO L276 IsEmpty]: Start isEmpty. Operand 3384 states and 12743 transitions. [2022-11-16 11:25:07,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-16 11:25:07,342 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:25:07,342 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:25:07,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:25:07,343 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:25:07,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:07,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1583776675, now seen corresponding path program 1 times [2022-11-16 11:25:07,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:07,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074164495] [2022-11-16 11:25:07,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:07,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:07,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:07,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:07,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:07,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074164495] [2022-11-16 11:25:07,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074164495] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:07,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:07,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 11:25:07,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684466898] [2022-11-16 11:25:07,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:07,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:25:07,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:07,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:25:07,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:25:07,447 INFO L87 Difference]: Start difference. First operand 3384 states and 12743 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:07,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:25:07,626 INFO L93 Difference]: Finished difference Result 3254 states and 12309 transitions. [2022-11-16 11:25:07,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:25:07,627 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 [2022-11-16 11:25:07,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:25:07,681 INFO L225 Difference]: With dead ends: 3254 [2022-11-16 11:25:07,681 INFO L226 Difference]: Without dead ends: 3254 [2022-11-16 11:25:07,681 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 [2022-11-16 11:25:07,682 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 31 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:25:07,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 4 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:25:07,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3254 states. [2022-11-16 11:25:07,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3254 to 3254. [2022-11-16 11:25:07,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3254 states, 3249 states have (on average 3.788550323176362) internal successors, (12309), 3253 states have internal predecessors, (12309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:07,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3254 states to 3254 states and 12309 transitions. [2022-11-16 11:25:07,795 INFO L78 Accepts]: Start accepts. Automaton has 3254 states and 12309 transitions. Word has length 7 [2022-11-16 11:25:07,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:25:07,796 INFO L495 AbstractCegarLoop]: Abstraction has 3254 states and 12309 transitions. [2022-11-16 11:25:07,796 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) [2022-11-16 11:25:07,796 INFO L276 IsEmpty]: Start isEmpty. Operand 3254 states and 12309 transitions. [2022-11-16 11:25:07,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-16 11:25:07,797 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:25:07,797 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:25:07,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:25:07,798 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:25:07,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:07,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1583776677, now seen corresponding path program 1 times [2022-11-16 11:25:07,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:07,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866250927] [2022-11-16 11:25:07,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:07,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:07,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:07,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:07,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:07,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866250927] [2022-11-16 11:25:07,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866250927] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:07,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:07,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 11:25:07,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503873119] [2022-11-16 11:25:07,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:07,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:25:07,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:07,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:25:07,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:25:07,882 INFO L87 Difference]: Start difference. First operand 3254 states and 12309 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:07,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:25:07,979 INFO L93 Difference]: Finished difference Result 3124 states and 11875 transitions. [2022-11-16 11:25:07,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:25:07,980 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 [2022-11-16 11:25:07,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:25:08,000 INFO L225 Difference]: With dead ends: 3124 [2022-11-16 11:25:08,000 INFO L226 Difference]: Without dead ends: 3124 [2022-11-16 11:25:08,001 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 [2022-11-16 11:25:08,002 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 29 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:25:08,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 4 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:25:08,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3124 states. [2022-11-16 11:25:08,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3124 to 3124. [2022-11-16 11:25:08,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3121 states have (on average 3.804870233899391) internal successors, (11875), 3123 states have internal predecessors, (11875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:08,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 11875 transitions. [2022-11-16 11:25:08,180 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 11875 transitions. Word has length 7 [2022-11-16 11:25:08,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:25:08,180 INFO L495 AbstractCegarLoop]: Abstraction has 3124 states and 11875 transitions. [2022-11-16 11:25:08,180 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) [2022-11-16 11:25:08,180 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 11875 transitions. [2022-11-16 11:25:08,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-16 11:25:08,182 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:25:08,182 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:25:08,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:25:08,182 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:25:08,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:08,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1590976663, now seen corresponding path program 1 times [2022-11-16 11:25:08,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:08,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706090770] [2022-11-16 11:25:08,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:08,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:08,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:08,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:08,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:08,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706090770] [2022-11-16 11:25:08,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706090770] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:08,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:08,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 11:25:08,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964509260] [2022-11-16 11:25:08,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:08,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:25:08,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:08,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:25:08,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:25:08,235 INFO L87 Difference]: Start difference. First operand 3124 states and 11875 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:08,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:25:08,305 INFO L93 Difference]: Finished difference Result 2499 states and 9250 transitions. [2022-11-16 11:25:08,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:25:08,306 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-16 11:25:08,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:25:08,318 INFO L225 Difference]: With dead ends: 2499 [2022-11-16 11:25:08,319 INFO L226 Difference]: Without dead ends: 2499 [2022-11-16 11:25:08,319 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 [2022-11-16 11:25:08,320 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 26 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:25:08,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 4 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:25:08,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2499 states. [2022-11-16 11:25:08,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2499 to 2499. [2022-11-16 11:25:08,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2499 states, 2497 states have (on average 3.7044453344012815) internal successors, (9250), 2498 states have internal predecessors, (9250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:08,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2499 states to 2499 states and 9250 transitions. [2022-11-16 11:25:08,489 INFO L78 Accepts]: Start accepts. Automaton has 2499 states and 9250 transitions. Word has length 9 [2022-11-16 11:25:08,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:25:08,490 INFO L495 AbstractCegarLoop]: Abstraction has 2499 states and 9250 transitions. [2022-11-16 11:25:08,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:08,490 INFO L276 IsEmpty]: Start isEmpty. Operand 2499 states and 9250 transitions. [2022-11-16 11:25:08,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-16 11:25:08,493 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:25:08,493 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:25:08,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:25:08,494 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:25:08,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:08,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1590976662, now seen corresponding path program 1 times [2022-11-16 11:25:08,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:08,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258367202] [2022-11-16 11:25:08,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:08,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:08,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:08,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:08,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:08,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258367202] [2022-11-16 11:25:08,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258367202] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:08,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:08,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:25:08,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95771291] [2022-11-16 11:25:08,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:08,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:25:08,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:08,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:25:08,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:25:08,744 INFO L87 Difference]: Start difference. First operand 2499 states and 9250 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:08,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:25:08,820 INFO L93 Difference]: Finished difference Result 1874 states and 6625 transitions. [2022-11-16 11:25:08,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:25:08,821 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-16 11:25:08,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:25:08,832 INFO L225 Difference]: With dead ends: 1874 [2022-11-16 11:25:08,832 INFO L226 Difference]: Without dead ends: 1874 [2022-11-16 11:25:08,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:25:08,834 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 62 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:25:08,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 4 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:25:08,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1874 states. [2022-11-16 11:25:08,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1874 to 1874. [2022-11-16 11:25:08,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1874 states, 1873 states have (on average 3.5371062466631074) internal successors, (6625), 1873 states have internal predecessors, (6625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:08,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1874 states to 1874 states and 6625 transitions. [2022-11-16 11:25:08,922 INFO L78 Accepts]: Start accepts. Automaton has 1874 states and 6625 transitions. Word has length 9 [2022-11-16 11:25:08,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:25:08,923 INFO L495 AbstractCegarLoop]: Abstraction has 1874 states and 6625 transitions. [2022-11-16 11:25:08,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:08,923 INFO L276 IsEmpty]: Start isEmpty. Operand 1874 states and 6625 transitions. [2022-11-16 11:25:08,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:25:08,933 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:25:08,934 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:25:08,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:25:08,934 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:25:08,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:08,935 INFO L85 PathProgramCache]: Analyzing trace with hash 265448489, now seen corresponding path program 1 times [2022-11-16 11:25:08,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:08,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326642227] [2022-11-16 11:25:08,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:08,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:09,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:10,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:10,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:10,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326642227] [2022-11-16 11:25:10,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326642227] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:10,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:10,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:25:10,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377320886] [2022-11-16 11:25:10,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:10,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:25:10,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:10,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:25:10,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:25:10,413 INFO L87 Difference]: Start difference. First operand 1874 states and 6625 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:10,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:25:10,521 INFO L93 Difference]: Finished difference Result 1522 states and 5261 transitions. [2022-11-16 11:25:10,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:25:10,522 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:25:10,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:25:10,528 INFO L225 Difference]: With dead ends: 1522 [2022-11-16 11:25:10,528 INFO L226 Difference]: Without dead ends: 1522 [2022-11-16 11:25:10,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:25:10,529 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 19 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:25:10,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 10 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:25:10,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1522 states. [2022-11-16 11:25:10,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1522 to 1522. [2022-11-16 11:25:10,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1522 states, 1521 states have (on average 3.4589086127547666) internal successors, (5261), 1521 states have internal predecessors, (5261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:10,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1522 states to 1522 states and 5261 transitions. [2022-11-16 11:25:10,570 INFO L78 Accepts]: Start accepts. Automaton has 1522 states and 5261 transitions. Word has length 33 [2022-11-16 11:25:10,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:25:10,571 INFO L495 AbstractCegarLoop]: Abstraction has 1522 states and 5261 transitions. [2022-11-16 11:25:10,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:10,571 INFO L276 IsEmpty]: Start isEmpty. Operand 1522 states and 5261 transitions. [2022-11-16 11:25:10,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:25:10,576 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:25:10,576 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:25:10,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:25:10,576 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:25:10,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:10,577 INFO L85 PathProgramCache]: Analyzing trace with hash -9910397, now seen corresponding path program 2 times [2022-11-16 11:25:10,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:10,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259785673] [2022-11-16 11:25:10,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:10,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:10,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:10,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:10,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:10,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259785673] [2022-11-16 11:25:10,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259785673] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:10,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:10,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:25:10,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678178120] [2022-11-16 11:25:10,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:10,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:25:10,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:10,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:25:10,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:25:10,866 INFO L87 Difference]: Start difference. First operand 1522 states and 5261 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:10,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:25:10,942 INFO L93 Difference]: Finished difference Result 1234 states and 4169 transitions. [2022-11-16 11:25:10,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:25:10,942 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:25:10,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:25:10,948 INFO L225 Difference]: With dead ends: 1234 [2022-11-16 11:25:10,949 INFO L226 Difference]: Without dead ends: 1234 [2022-11-16 11:25:10,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:25:10,950 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:25:10,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 7 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:25:10,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1234 states. [2022-11-16 11:25:10,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1234 to 1234. [2022-11-16 11:25:10,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1234 states, 1233 states have (on average 3.381184103811841) internal successors, (4169), 1233 states have internal predecessors, (4169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:10,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1234 states to 1234 states and 4169 transitions. [2022-11-16 11:25:10,994 INFO L78 Accepts]: Start accepts. Automaton has 1234 states and 4169 transitions. Word has length 33 [2022-11-16 11:25:10,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:25:10,995 INFO L495 AbstractCegarLoop]: Abstraction has 1234 states and 4169 transitions. [2022-11-16 11:25:10,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:10,995 INFO L276 IsEmpty]: Start isEmpty. Operand 1234 states and 4169 transitions. [2022-11-16 11:25:10,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:25:11,000 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:25:11,000 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:25:11,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:25:11,000 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:25:11,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:11,001 INFO L85 PathProgramCache]: Analyzing trace with hash 157213993, now seen corresponding path program 3 times [2022-11-16 11:25:11,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:11,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020099800] [2022-11-16 11:25:11,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:11,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:11,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:14,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:14,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:14,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020099800] [2022-11-16 11:25:14,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020099800] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:14,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:14,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-16 11:25:14,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422321968] [2022-11-16 11:25:14,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:14,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 11:25:14,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:14,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 11:25:14,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:25:14,316 INFO L87 Difference]: Start difference. First operand 1234 states and 4169 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:17,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:25:17,239 INFO L93 Difference]: Finished difference Result 2365 states and 7209 transitions. [2022-11-16 11:25:17,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:25:17,240 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:25:17,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:25:17,252 INFO L225 Difference]: With dead ends: 2365 [2022-11-16 11:25:17,252 INFO L226 Difference]: Without dead ends: 2352 [2022-11-16 11:25:17,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=234, Invalid=522, Unknown=0, NotChecked=0, Total=756 [2022-11-16 11:25:17,254 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 349 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 1230 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 1266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:25:17,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 50 Invalid, 1266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1230 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-16 11:25:17,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2352 states. [2022-11-16 11:25:17,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2352 to 1270. [2022-11-16 11:25:17,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1270 states, 1269 states have (on average 3.359338061465721) internal successors, (4263), 1269 states have internal predecessors, (4263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:17,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 4263 transitions. [2022-11-16 11:25:17,333 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 4263 transitions. Word has length 33 [2022-11-16 11:25:17,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:25:17,333 INFO L495 AbstractCegarLoop]: Abstraction has 1270 states and 4263 transitions. [2022-11-16 11:25:17,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:17,334 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 4263 transitions. [2022-11-16 11:25:17,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:25:17,345 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:25:17,345 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:25:17,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 11:25:17,346 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:25:17,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:17,346 INFO L85 PathProgramCache]: Analyzing trace with hash 93766867, now seen corresponding path program 4 times [2022-11-16 11:25:17,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:17,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982770085] [2022-11-16 11:25:17,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:17,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:17,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:19,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:19,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:19,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982770085] [2022-11-16 11:25:19,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982770085] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:19,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:19,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:25:19,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012743178] [2022-11-16 11:25:19,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:19,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:25:19,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:19,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:25:19,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:25:19,953 INFO L87 Difference]: Start difference. First operand 1270 states and 4263 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:22,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:25:22,116 INFO L93 Difference]: Finished difference Result 2379 states and 7225 transitions. [2022-11-16 11:25:22,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:25:22,116 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:25:22,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:25:22,124 INFO L225 Difference]: With dead ends: 2379 [2022-11-16 11:25:22,125 INFO L226 Difference]: Without dead ends: 2368 [2022-11-16 11:25:22,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=167, Invalid=339, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:25:22,126 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 309 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1261 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 1292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:25:22,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 52 Invalid, 1292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1261 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-16 11:25:22,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2368 states. [2022-11-16 11:25:22,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2368 to 1272. [2022-11-16 11:25:22,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1272 states, 1271 states have (on average 3.3564122738001574) internal successors, (4266), 1271 states have internal predecessors, (4266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:22,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1272 states to 1272 states and 4266 transitions. [2022-11-16 11:25:22,172 INFO L78 Accepts]: Start accepts. Automaton has 1272 states and 4266 transitions. Word has length 33 [2022-11-16 11:25:22,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:25:22,172 INFO L495 AbstractCegarLoop]: Abstraction has 1272 states and 4266 transitions. [2022-11-16 11:25:22,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:22,173 INFO L276 IsEmpty]: Start isEmpty. Operand 1272 states and 4266 transitions. [2022-11-16 11:25:22,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:25:22,176 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:25:22,177 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:25:22,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 11:25:22,177 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:25:22,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:22,178 INFO L85 PathProgramCache]: Analyzing trace with hash -989821617, now seen corresponding path program 5 times [2022-11-16 11:25:22,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:22,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408451333] [2022-11-16 11:25:22,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:22,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:22,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:24,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:24,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:24,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408451333] [2022-11-16 11:25:24,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408451333] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:24,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:24,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:25:24,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712318024] [2022-11-16 11:25:24,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:24,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:25:24,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:24,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:25:24,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:25:24,548 INFO L87 Difference]: Start difference. First operand 1272 states and 4266 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:27,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:25:27,001 INFO L93 Difference]: Finished difference Result 2367 states and 7211 transitions. [2022-11-16 11:25:27,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:25:27,002 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:25:27,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:25:27,011 INFO L225 Difference]: With dead ends: 2367 [2022-11-16 11:25:27,012 INFO L226 Difference]: Without dead ends: 2350 [2022-11-16 11:25:27,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=167, Invalid=339, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:25:27,013 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 241 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 1373 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 1403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:25:27,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 50 Invalid, 1403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1373 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-16 11:25:27,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2350 states. [2022-11-16 11:25:27,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2350 to 1268. [2022-11-16 11:25:27,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1268 states, 1267 states have (on average 3.36069455406472) internal successors, (4258), 1267 states have internal predecessors, (4258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:27,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 4258 transitions. [2022-11-16 11:25:27,072 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 4258 transitions. Word has length 33 [2022-11-16 11:25:27,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:25:27,072 INFO L495 AbstractCegarLoop]: Abstraction has 1268 states and 4258 transitions. [2022-11-16 11:25:27,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:27,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 4258 transitions. [2022-11-16 11:25:27,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:25:27,077 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:25:27,078 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:25:27,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 11:25:27,078 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:25:27,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:27,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1556488391, now seen corresponding path program 6 times [2022-11-16 11:25:27,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:27,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170940808] [2022-11-16 11:25:27,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:27,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:27,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:29,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:29,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:29,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170940808] [2022-11-16 11:25:29,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170940808] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:29,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:29,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-16 11:25:29,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132319383] [2022-11-16 11:25:29,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:29,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 11:25:29,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:29,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 11:25:29,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:25:29,778 INFO L87 Difference]: Start difference. First operand 1268 states and 4258 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:32,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:25:32,628 INFO L93 Difference]: Finished difference Result 2367 states and 7209 transitions. [2022-11-16 11:25:32,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 11:25:32,628 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:25:32,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:25:32,636 INFO L225 Difference]: With dead ends: 2367 [2022-11-16 11:25:32,636 INFO L226 Difference]: Without dead ends: 2356 [2022-11-16 11:25:32,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=282, Invalid=588, Unknown=0, NotChecked=0, Total=870 [2022-11-16 11:25:32,637 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 359 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 1162 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:25:32,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 54 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1162 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-16 11:25:32,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2356 states. [2022-11-16 11:25:32,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2356 to 1272. [2022-11-16 11:25:32,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1272 states, 1271 states have (on average 3.3564122738001574) internal successors, (4266), 1271 states have internal predecessors, (4266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:32,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1272 states to 1272 states and 4266 transitions. [2022-11-16 11:25:32,685 INFO L78 Accepts]: Start accepts. Automaton has 1272 states and 4266 transitions. Word has length 33 [2022-11-16 11:25:32,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:25:32,687 INFO L495 AbstractCegarLoop]: Abstraction has 1272 states and 4266 transitions. [2022-11-16 11:25:32,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:32,688 INFO L276 IsEmpty]: Start isEmpty. Operand 1272 states and 4266 transitions. [2022-11-16 11:25:32,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:25:32,692 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:25:32,693 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:25:32,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 11:25:32,693 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:25:32,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:32,694 INFO L85 PathProgramCache]: Analyzing trace with hash 472899907, now seen corresponding path program 7 times [2022-11-16 11:25:32,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:32,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472004043] [2022-11-16 11:25:32,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:32,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:32,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:35,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:35,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:35,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472004043] [2022-11-16 11:25:35,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472004043] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:35,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:35,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-11-16 11:25:35,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733622102] [2022-11-16 11:25:35,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:35,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 11:25:35,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:35,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 11:25:35,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:25:35,372 INFO L87 Difference]: Start difference. First operand 1272 states and 4266 transitions. Second operand has 18 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 17 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:40,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:25:40,448 INFO L93 Difference]: Finished difference Result 3726 states and 11292 transitions. [2022-11-16 11:25:40,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-16 11:25:40,449 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 17 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:25:40,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:25:40,466 INFO L225 Difference]: With dead ends: 3726 [2022-11-16 11:25:40,467 INFO L226 Difference]: Without dead ends: 3700 [2022-11-16 11:25:40,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 356 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=609, Invalid=1461, Unknown=0, NotChecked=0, Total=2070 [2022-11-16 11:25:40,469 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 614 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1737 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 1805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:25:40,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [614 Valid, 49 Invalid, 1805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1737 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-16 11:25:40,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3700 states. [2022-11-16 11:25:40,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3700 to 1270. [2022-11-16 11:25:40,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1270 states, 1269 states have (on average 3.3577620173364853) internal successors, (4261), 1269 states have internal predecessors, (4261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:40,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 4261 transitions. [2022-11-16 11:25:40,555 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 4261 transitions. Word has length 33 [2022-11-16 11:25:40,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:25:40,555 INFO L495 AbstractCegarLoop]: Abstraction has 1270 states and 4261 transitions. [2022-11-16 11:25:40,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 17 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:40,556 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 4261 transitions. [2022-11-16 11:25:40,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:25:40,562 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:25:40,562 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:25:40,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 11:25:40,563 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:25:40,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:40,564 INFO L85 PathProgramCache]: Analyzing trace with hash -33446359, now seen corresponding path program 8 times [2022-11-16 11:25:40,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:40,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266695415] [2022-11-16 11:25:40,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:40,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:40,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:43,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:43,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:43,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266695415] [2022-11-16 11:25:43,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266695415] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:43,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:43,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-11-16 11:25:43,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731024962] [2022-11-16 11:25:43,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:43,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 11:25:43,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:43,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 11:25:43,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:25:43,850 INFO L87 Difference]: Start difference. First operand 1270 states and 4261 transitions. Second operand has 18 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 17 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:46,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:25:46,726 INFO L93 Difference]: Finished difference Result 2685 states and 8406 transitions. [2022-11-16 11:25:46,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 11:25:46,727 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 17 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:25:46,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:25:46,738 INFO L225 Difference]: With dead ends: 2685 [2022-11-16 11:25:46,739 INFO L226 Difference]: Without dead ends: 2660 [2022-11-16 11:25:46,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=282, Invalid=648, Unknown=0, NotChecked=0, Total=930 [2022-11-16 11:25:46,740 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 315 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 1413 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 1452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:25:46,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 61 Invalid, 1452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1413 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-16 11:25:46,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2660 states. [2022-11-16 11:25:46,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2660 to 1324. [2022-11-16 11:25:46,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1324 states, 1323 states have (on average 3.3416477702191987) internal successors, (4421), 1323 states have internal predecessors, (4421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:46,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1324 states to 1324 states and 4421 transitions. [2022-11-16 11:25:46,799 INFO L78 Accepts]: Start accepts. Automaton has 1324 states and 4421 transitions. Word has length 33 [2022-11-16 11:25:46,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:25:46,799 INFO L495 AbstractCegarLoop]: Abstraction has 1324 states and 4421 transitions. [2022-11-16 11:25:46,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 17 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:46,800 INFO L276 IsEmpty]: Start isEmpty. Operand 1324 states and 4421 transitions. [2022-11-16 11:25:46,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:25:46,804 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:25:46,805 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:25:46,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 11:25:46,805 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:25:46,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:46,806 INFO L85 PathProgramCache]: Analyzing trace with hash -502089091, now seen corresponding path program 9 times [2022-11-16 11:25:46,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:46,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658521850] [2022-11-16 11:25:46,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:46,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:46,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:48,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:48,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:48,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658521850] [2022-11-16 11:25:48,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658521850] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:48,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:48,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:25:48,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248605231] [2022-11-16 11:25:48,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:48,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:25:48,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:48,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:25:48,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:25:48,731 INFO L87 Difference]: Start difference. First operand 1324 states and 4421 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:51,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:25:51,596 INFO L93 Difference]: Finished difference Result 2487 states and 7547 transitions. [2022-11-16 11:25:51,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 11:25:51,596 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:25:51,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:25:51,606 INFO L225 Difference]: With dead ends: 2487 [2022-11-16 11:25:51,606 INFO L226 Difference]: Without dead ends: 2472 [2022-11-16 11:25:51,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=222, Invalid=480, Unknown=0, NotChecked=0, Total=702 [2022-11-16 11:25:51,607 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 283 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 1425 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 1454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:25:51,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 58 Invalid, 1454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1425 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-16 11:25:51,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2472 states. [2022-11-16 11:25:51,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2472 to 1332. [2022-11-16 11:25:51,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1332 states, 1331 states have (on average 3.33809166040571) internal successors, (4443), 1331 states have internal predecessors, (4443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:51,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1332 states to 1332 states and 4443 transitions. [2022-11-16 11:25:51,661 INFO L78 Accepts]: Start accepts. Automaton has 1332 states and 4443 transitions. Word has length 33 [2022-11-16 11:25:51,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:25:51,662 INFO L495 AbstractCegarLoop]: Abstraction has 1332 states and 4443 transitions. [2022-11-16 11:25:51,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:51,662 INFO L276 IsEmpty]: Start isEmpty. Operand 1332 states and 4443 transitions. [2022-11-16 11:25:51,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:25:51,667 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:25:51,667 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:25:51,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 11:25:51,667 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:25:51,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:51,668 INFO L85 PathProgramCache]: Analyzing trace with hash -2105152721, now seen corresponding path program 10 times [2022-11-16 11:25:51,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:51,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425194302] [2022-11-16 11:25:51,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:51,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:51,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:53,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:53,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:53,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425194302] [2022-11-16 11:25:53,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425194302] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:53,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:53,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:25:53,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747121851] [2022-11-16 11:25:53,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:53,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:25:53,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:53,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:25:53,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:25:53,620 INFO L87 Difference]: Start difference. First operand 1332 states and 4443 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:56,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:25:56,416 INFO L93 Difference]: Finished difference Result 2483 states and 7537 transitions. [2022-11-16 11:25:56,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 11:25:56,416 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:25:56,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:25:56,422 INFO L225 Difference]: With dead ends: 2483 [2022-11-16 11:25:56,422 INFO L226 Difference]: Without dead ends: 2470 [2022-11-16 11:25:56,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=206, Invalid=444, Unknown=0, NotChecked=0, Total=650 [2022-11-16 11:25:56,423 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 243 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 1483 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 1512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:25:56,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 64 Invalid, 1512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1483 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-16 11:25:56,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2470 states. [2022-11-16 11:25:56,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2470 to 1330. [2022-11-16 11:25:56,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1330 states, 1329 states have (on average 3.3393528969149737) internal successors, (4438), 1329 states have internal predecessors, (4438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:56,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1330 states to 1330 states and 4438 transitions. [2022-11-16 11:25:56,479 INFO L78 Accepts]: Start accepts. Automaton has 1330 states and 4438 transitions. Word has length 33 [2022-11-16 11:25:56,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:25:56,479 INFO L495 AbstractCegarLoop]: Abstraction has 1330 states and 4438 transitions. [2022-11-16 11:25:56,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:56,480 INFO L276 IsEmpty]: Start isEmpty. Operand 1330 states and 4438 transitions. [2022-11-16 11:25:56,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:25:56,484 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:25:56,484 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:25:56,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-16 11:25:56,485 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:25:56,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:56,486 INFO L85 PathProgramCache]: Analyzing trace with hash 571424791, now seen corresponding path program 11 times [2022-11-16 11:25:56,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:56,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985120042] [2022-11-16 11:25:56,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:56,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:56,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:58,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:58,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:58,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985120042] [2022-11-16 11:25:58,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985120042] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:58,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:58,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:25:58,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455454948] [2022-11-16 11:25:58,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:58,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:25:58,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:58,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:25:58,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:25:58,304 INFO L87 Difference]: Start difference. First operand 1330 states and 4438 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:00,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:26:00,915 INFO L93 Difference]: Finished difference Result 2475 states and 7519 transitions. [2022-11-16 11:26:00,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 11:26:00,915 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:26:00,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:26:00,920 INFO L225 Difference]: With dead ends: 2475 [2022-11-16 11:26:00,921 INFO L226 Difference]: Without dead ends: 2460 [2022-11-16 11:26:00,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=191, Invalid=409, Unknown=0, NotChecked=0, Total=600 [2022-11-16 11:26:00,922 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 228 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1538 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 1568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:26:00,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 54 Invalid, 1568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1538 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-16 11:26:00,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2460 states. [2022-11-16 11:26:00,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2460 to 1328. [2022-11-16 11:26:00,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1328 states, 1327 states have (on average 3.3406179351921628) internal successors, (4433), 1327 states have internal predecessors, (4433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:00,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1328 states to 1328 states and 4433 transitions. [2022-11-16 11:26:00,974 INFO L78 Accepts]: Start accepts. Automaton has 1328 states and 4433 transitions. Word has length 33 [2022-11-16 11:26:00,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:26:00,974 INFO L495 AbstractCegarLoop]: Abstraction has 1328 states and 4433 transitions. [2022-11-16 11:26:00,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:00,975 INFO L276 IsEmpty]: Start isEmpty. Operand 1328 states and 4433 transitions. [2022-11-16 11:26:00,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:26:00,979 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:26:00,979 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:26:00,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-16 11:26:00,980 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:26:00,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:00,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1826017299, now seen corresponding path program 12 times [2022-11-16 11:26:00,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:00,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882278789] [2022-11-16 11:26:00,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:00,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:01,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:03,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:03,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:03,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882278789] [2022-11-16 11:26:03,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882278789] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:03,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:03,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:26:03,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215062594] [2022-11-16 11:26:03,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:03,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:26:03,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:03,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:26:03,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:26:03,123 INFO L87 Difference]: Start difference. First operand 1328 states and 4433 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:05,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:26:05,927 INFO L93 Difference]: Finished difference Result 2545 states and 7647 transitions. [2022-11-16 11:26:05,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 11:26:05,928 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:26:05,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:26:05,935 INFO L225 Difference]: With dead ends: 2545 [2022-11-16 11:26:05,935 INFO L226 Difference]: Without dead ends: 2530 [2022-11-16 11:26:05,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=222, Invalid=480, Unknown=0, NotChecked=0, Total=702 [2022-11-16 11:26:05,937 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 332 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 1451 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 1479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:26:05,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 59 Invalid, 1479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1451 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-16 11:26:05,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2530 states. [2022-11-16 11:26:05,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2530 to 1332. [2022-11-16 11:26:05,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1332 states, 1331 states have (on average 3.33809166040571) internal successors, (4443), 1331 states have internal predecessors, (4443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:05,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1332 states to 1332 states and 4443 transitions. [2022-11-16 11:26:05,993 INFO L78 Accepts]: Start accepts. Automaton has 1332 states and 4443 transitions. Word has length 33 [2022-11-16 11:26:05,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:26:05,994 INFO L495 AbstractCegarLoop]: Abstraction has 1332 states and 4443 transitions. [2022-11-16 11:26:05,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:05,994 INFO L276 IsEmpty]: Start isEmpty. Operand 1332 states and 4443 transitions. [2022-11-16 11:26:05,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:26:05,999 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:26:05,999 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:26:05,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-16 11:26:05,999 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:26:06,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:06,000 INFO L85 PathProgramCache]: Analyzing trace with hash 222953669, now seen corresponding path program 13 times [2022-11-16 11:26:06,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:06,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13529430] [2022-11-16 11:26:06,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:06,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:06,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:08,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:08,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:08,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13529430] [2022-11-16 11:26:08,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13529430] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:08,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:08,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:26:08,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832227911] [2022-11-16 11:26:08,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:08,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:26:08,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:08,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:26:08,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:26:08,192 INFO L87 Difference]: Start difference. First operand 1332 states and 4443 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:10,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:26:10,780 INFO L93 Difference]: Finished difference Result 2535 states and 7626 transitions. [2022-11-16 11:26:10,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 11:26:10,781 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:26:10,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:26:10,789 INFO L225 Difference]: With dead ends: 2535 [2022-11-16 11:26:10,789 INFO L226 Difference]: Without dead ends: 2522 [2022-11-16 11:26:10,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=206, Invalid=444, Unknown=0, NotChecked=0, Total=650 [2022-11-16 11:26:10,792 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 330 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 1412 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 1440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:26:10,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 63 Invalid, 1440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1412 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-16 11:26:10,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2522 states. [2022-11-16 11:26:10,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2522 to 1330. [2022-11-16 11:26:10,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1330 states, 1329 states have (on average 3.3393528969149737) internal successors, (4438), 1329 states have internal predecessors, (4438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:10,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1330 states to 1330 states and 4438 transitions. [2022-11-16 11:26:10,859 INFO L78 Accepts]: Start accepts. Automaton has 1330 states and 4438 transitions. Word has length 33 [2022-11-16 11:26:10,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:26:10,860 INFO L495 AbstractCegarLoop]: Abstraction has 1330 states and 4438 transitions. [2022-11-16 11:26:10,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:10,860 INFO L276 IsEmpty]: Start isEmpty. Operand 1330 states and 4438 transitions. [2022-11-16 11:26:10,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:26:10,865 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:26:10,865 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:26:10,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-16 11:26:10,865 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:26:10,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:10,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1700454633, now seen corresponding path program 14 times [2022-11-16 11:26:10,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:10,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981387370] [2022-11-16 11:26:10,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:10,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:10,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:12,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:12,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:12,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981387370] [2022-11-16 11:26:12,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981387370] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:12,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:12,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:26:12,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354402190] [2022-11-16 11:26:12,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:12,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:26:12,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:12,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:26:12,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:26:12,506 INFO L87 Difference]: Start difference. First operand 1330 states and 4438 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:14,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:26:14,738 INFO L93 Difference]: Finished difference Result 2517 states and 7601 transitions. [2022-11-16 11:26:14,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 11:26:14,739 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:26:14,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:26:14,743 INFO L225 Difference]: With dead ends: 2517 [2022-11-16 11:26:14,743 INFO L226 Difference]: Without dead ends: 2502 [2022-11-16 11:26:14,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=222, Invalid=480, Unknown=0, NotChecked=0, Total=702 [2022-11-16 11:26:14,744 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 315 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 1413 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 1442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:26:14,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 49 Invalid, 1442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1413 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:26:14,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2502 states. [2022-11-16 11:26:14,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2502 to 1334. [2022-11-16 11:26:14,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1334 states, 1333 states have (on average 3.334583645911478) internal successors, (4445), 1333 states have internal predecessors, (4445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:14,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1334 states to 1334 states and 4445 transitions. [2022-11-16 11:26:14,788 INFO L78 Accepts]: Start accepts. Automaton has 1334 states and 4445 transitions. Word has length 33 [2022-11-16 11:26:14,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:26:14,788 INFO L495 AbstractCegarLoop]: Abstraction has 1334 states and 4445 transitions. [2022-11-16 11:26:14,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:14,789 INFO L276 IsEmpty]: Start isEmpty. Operand 1334 states and 4445 transitions. [2022-11-16 11:26:14,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:26:14,793 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:26:14,794 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:26:14,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-16 11:26:14,794 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:26:14,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:14,795 INFO L85 PathProgramCache]: Analyzing trace with hash -92139451, now seen corresponding path program 15 times [2022-11-16 11:26:14,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:14,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891378941] [2022-11-16 11:26:14,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:14,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:14,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:16,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:16,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:16,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891378941] [2022-11-16 11:26:16,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891378941] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:16,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:16,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:26:16,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819710485] [2022-11-16 11:26:16,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:16,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:26:16,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:16,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:26:16,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:26:16,360 INFO L87 Difference]: Start difference. First operand 1334 states and 4445 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:18,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:26:18,743 INFO L93 Difference]: Finished difference Result 2499 states and 7573 transitions. [2022-11-16 11:26:18,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 11:26:18,745 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:26:18,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:26:18,749 INFO L225 Difference]: With dead ends: 2499 [2022-11-16 11:26:18,749 INFO L226 Difference]: Without dead ends: 2482 [2022-11-16 11:26:18,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=206, Invalid=444, Unknown=0, NotChecked=0, Total=650 [2022-11-16 11:26:18,750 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 274 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 1427 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 1455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:26:18,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 50 Invalid, 1455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1427 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-16 11:26:18,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2482 states. [2022-11-16 11:26:18,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2482 to 1330. [2022-11-16 11:26:18,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1330 states, 1329 states have (on average 3.3378480060195637) internal successors, (4436), 1329 states have internal predecessors, (4436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:18,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1330 states to 1330 states and 4436 transitions. [2022-11-16 11:26:18,795 INFO L78 Accepts]: Start accepts. Automaton has 1330 states and 4436 transitions. Word has length 33 [2022-11-16 11:26:18,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:26:18,795 INFO L495 AbstractCegarLoop]: Abstraction has 1330 states and 4436 transitions. [2022-11-16 11:26:18,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:18,796 INFO L276 IsEmpty]: Start isEmpty. Operand 1330 states and 4436 transitions. [2022-11-16 11:26:18,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:26:18,799 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:26:18,799 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:26:18,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-16 11:26:18,800 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:26:18,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:18,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1458883241, now seen corresponding path program 16 times [2022-11-16 11:26:18,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:18,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221965255] [2022-11-16 11:26:18,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:18,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:18,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:20,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:20,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:20,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221965255] [2022-11-16 11:26:20,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221965255] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:20,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:20,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:26:20,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791650101] [2022-11-16 11:26:20,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:20,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:26:20,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:20,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:26:20,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:26:20,377 INFO L87 Difference]: Start difference. First operand 1330 states and 4436 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:22,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:26:22,746 INFO L93 Difference]: Finished difference Result 2509 states and 7581 transitions. [2022-11-16 11:26:22,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 11:26:22,751 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:26:22,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:26:22,757 INFO L225 Difference]: With dead ends: 2509 [2022-11-16 11:26:22,757 INFO L226 Difference]: Without dead ends: 2498 [2022-11-16 11:26:22,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=191, Invalid=409, Unknown=0, NotChecked=0, Total=600 [2022-11-16 11:26:22,758 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 290 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 1414 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 1443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:26:22,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 38 Invalid, 1443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1414 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-16 11:26:22,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2498 states. [2022-11-16 11:26:22,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2498 to 1332. [2022-11-16 11:26:22,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1332 states, 1331 states have (on average 3.3350864012021035) internal successors, (4439), 1331 states have internal predecessors, (4439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:22,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1332 states to 1332 states and 4439 transitions. [2022-11-16 11:26:22,801 INFO L78 Accepts]: Start accepts. Automaton has 1332 states and 4439 transitions. Word has length 33 [2022-11-16 11:26:22,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:26:22,801 INFO L495 AbstractCegarLoop]: Abstraction has 1332 states and 4439 transitions. [2022-11-16 11:26:22,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:22,802 INFO L276 IsEmpty]: Start isEmpty. Operand 1332 states and 4439 transitions. [2022-11-16 11:26:22,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:26:22,805 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:26:22,805 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:26:22,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-16 11:26:22,806 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:26:22,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:22,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1752495571, now seen corresponding path program 17 times [2022-11-16 11:26:22,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:22,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290325607] [2022-11-16 11:26:22,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:22,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:22,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:24,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:24,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:24,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290325607] [2022-11-16 11:26:24,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290325607] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:24,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:24,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:26:24,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080489593] [2022-11-16 11:26:24,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:24,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:26:24,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:24,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:26:24,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:26:24,360 INFO L87 Difference]: Start difference. First operand 1332 states and 4439 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:26,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:26:26,888 INFO L93 Difference]: Finished difference Result 2497 states and 7567 transitions. [2022-11-16 11:26:26,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 11:26:26,889 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:26:26,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:26:26,894 INFO L225 Difference]: With dead ends: 2497 [2022-11-16 11:26:26,894 INFO L226 Difference]: Without dead ends: 2480 [2022-11-16 11:26:26,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=191, Invalid=409, Unknown=0, NotChecked=0, Total=600 [2022-11-16 11:26:26,895 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 227 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1528 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 1556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:26:26,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 47 Invalid, 1556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1528 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-16 11:26:26,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2480 states. [2022-11-16 11:26:26,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2480 to 1328. [2022-11-16 11:26:26,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1328 states, 1327 states have (on average 3.339110776186888) internal successors, (4431), 1327 states have internal predecessors, (4431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:26,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1328 states to 1328 states and 4431 transitions. [2022-11-16 11:26:26,949 INFO L78 Accepts]: Start accepts. Automaton has 1328 states and 4431 transitions. Word has length 33 [2022-11-16 11:26:26,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:26:26,950 INFO L495 AbstractCegarLoop]: Abstraction has 1328 states and 4431 transitions. [2022-11-16 11:26:26,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:26,950 INFO L276 IsEmpty]: Start isEmpty. Operand 1328 states and 4431 transitions. [2022-11-16 11:26:26,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:26:26,954 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:26:26,954 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:26:26,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-16 11:26:26,955 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:26:26,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:26,955 INFO L85 PathProgramCache]: Analyzing trace with hash -25911867, now seen corresponding path program 18 times [2022-11-16 11:26:26,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:26,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102822113] [2022-11-16 11:26:26,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:26,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:27,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:28,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:28,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:28,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102822113] [2022-11-16 11:26:28,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102822113] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:28,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:28,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:26:28,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429911868] [2022-11-16 11:26:28,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:28,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:26:28,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:28,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:26:28,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:26:28,897 INFO L87 Difference]: Start difference. First operand 1328 states and 4431 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:31,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:26:31,256 INFO L93 Difference]: Finished difference Result 2493 states and 7541 transitions. [2022-11-16 11:26:31,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 11:26:31,256 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:26:31,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:26:31,262 INFO L225 Difference]: With dead ends: 2493 [2022-11-16 11:26:31,262 INFO L226 Difference]: Without dead ends: 2480 [2022-11-16 11:26:31,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=177, Invalid=375, Unknown=0, NotChecked=0, Total=552 [2022-11-16 11:26:31,263 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 331 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 1317 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 1348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:26:31,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 45 Invalid, 1348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1317 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-16 11:26:31,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2480 states. [2022-11-16 11:26:31,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2480 to 1330. [2022-11-16 11:26:31,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1330 states, 1329 states have (on average 3.3363431151241536) internal successors, (4434), 1329 states have internal predecessors, (4434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:31,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1330 states to 1330 states and 4434 transitions. [2022-11-16 11:26:31,316 INFO L78 Accepts]: Start accepts. Automaton has 1330 states and 4434 transitions. Word has length 33 [2022-11-16 11:26:31,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:26:31,317 INFO L495 AbstractCegarLoop]: Abstraction has 1330 states and 4434 transitions. [2022-11-16 11:26:31,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:31,317 INFO L276 IsEmpty]: Start isEmpty. Operand 1330 states and 4434 transitions. [2022-11-16 11:26:31,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:26:31,321 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:26:31,322 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:26:31,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-16 11:26:31,322 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:26:31,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:31,323 INFO L85 PathProgramCache]: Analyzing trace with hash -89358993, now seen corresponding path program 19 times [2022-11-16 11:26:31,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:31,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254081563] [2022-11-16 11:26:31,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:31,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:31,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:33,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:33,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:33,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254081563] [2022-11-16 11:26:33,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254081563] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:33,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:33,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:26:33,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545339405] [2022-11-16 11:26:33,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:33,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:26:33,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:33,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:26:33,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:26:33,135 INFO L87 Difference]: Start difference. First operand 1330 states and 4434 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:35,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:26:35,637 INFO L93 Difference]: Finished difference Result 2495 states and 7545 transitions. [2022-11-16 11:26:35,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 11:26:35,637 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:26:35,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:26:35,642 INFO L225 Difference]: With dead ends: 2495 [2022-11-16 11:26:35,642 INFO L226 Difference]: Without dead ends: 2484 [2022-11-16 11:26:35,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=177, Invalid=375, Unknown=0, NotChecked=0, Total=552 [2022-11-16 11:26:35,643 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 308 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 1377 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 1407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:26:35,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 50 Invalid, 1407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1377 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-16 11:26:35,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2484 states. [2022-11-16 11:26:35,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2484 to 1332. [2022-11-16 11:26:35,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1332 states, 1331 states have (on average 3.3335837716003005) internal successors, (4437), 1331 states have internal predecessors, (4437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:35,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1332 states to 1332 states and 4437 transitions. [2022-11-16 11:26:35,698 INFO L78 Accepts]: Start accepts. Automaton has 1332 states and 4437 transitions. Word has length 33 [2022-11-16 11:26:35,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:26:35,698 INFO L495 AbstractCegarLoop]: Abstraction has 1332 states and 4437 transitions. [2022-11-16 11:26:35,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:35,699 INFO L276 IsEmpty]: Start isEmpty. Operand 1332 states and 4437 transitions. [2022-11-16 11:26:35,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:26:35,702 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:26:35,703 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:26:35,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-16 11:26:35,703 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:26:35,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:35,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1172947477, now seen corresponding path program 20 times [2022-11-16 11:26:35,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:35,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398215043] [2022-11-16 11:26:35,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:35,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:35,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:37,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:37,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:37,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398215043] [2022-11-16 11:26:37,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398215043] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:37,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:37,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:26:37,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393365580] [2022-11-16 11:26:37,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:37,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:26:37,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:37,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:26:37,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:26:37,323 INFO L87 Difference]: Start difference. First operand 1332 states and 4437 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:39,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:26:39,522 INFO L93 Difference]: Finished difference Result 2483 states and 7531 transitions. [2022-11-16 11:26:39,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 11:26:39,523 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:26:39,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:26:39,529 INFO L225 Difference]: With dead ends: 2483 [2022-11-16 11:26:39,529 INFO L226 Difference]: Without dead ends: 2464 [2022-11-16 11:26:39,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=177, Invalid=375, Unknown=0, NotChecked=0, Total=552 [2022-11-16 11:26:39,530 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 289 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 1355 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 1384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:26:39,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 41 Invalid, 1384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1355 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:26:39,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2464 states. [2022-11-16 11:26:39,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2464 to 1326. [2022-11-16 11:26:39,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1326 states, 1325 states have (on average 3.340377358490566) internal successors, (4426), 1325 states have internal predecessors, (4426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:39,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1326 states to 1326 states and 4426 transitions. [2022-11-16 11:26:39,574 INFO L78 Accepts]: Start accepts. Automaton has 1326 states and 4426 transitions. Word has length 33 [2022-11-16 11:26:39,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:26:39,575 INFO L495 AbstractCegarLoop]: Abstraction has 1326 states and 4426 transitions. [2022-11-16 11:26:39,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:39,575 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 4426 transitions. [2022-11-16 11:26:39,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:26:39,578 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:26:39,578 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:26:39,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-16 11:26:39,579 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:26:39,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:39,579 INFO L85 PathProgramCache]: Analyzing trace with hash -74255713, now seen corresponding path program 21 times [2022-11-16 11:26:39,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:39,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781922277] [2022-11-16 11:26:39,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:39,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:39,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:41,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:41,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:41,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781922277] [2022-11-16 11:26:41,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781922277] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:41,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:41,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:26:41,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417321463] [2022-11-16 11:26:41,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:41,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:26:41,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:41,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:26:41,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:26:41,075 INFO L87 Difference]: Start difference. First operand 1326 states and 4426 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:43,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:26:43,944 INFO L93 Difference]: Finished difference Result 2533 states and 7633 transitions. [2022-11-16 11:26:43,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-16 11:26:43,945 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:26:43,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:26:43,949 INFO L225 Difference]: With dead ends: 2533 [2022-11-16 11:26:43,950 INFO L226 Difference]: Without dead ends: 2518 [2022-11-16 11:26:43,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=274, Invalid=596, Unknown=0, NotChecked=0, Total=870 [2022-11-16 11:26:43,951 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 279 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 1594 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 1622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:26:43,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 66 Invalid, 1622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1594 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-16 11:26:43,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2518 states. [2022-11-16 11:26:43,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2518 to 1332. [2022-11-16 11:26:43,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1332 states, 1331 states have (on average 3.33809166040571) internal successors, (4443), 1331 states have internal predecessors, (4443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:43,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1332 states to 1332 states and 4443 transitions. [2022-11-16 11:26:43,987 INFO L78 Accepts]: Start accepts. Automaton has 1332 states and 4443 transitions. Word has length 33 [2022-11-16 11:26:43,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:26:43,987 INFO L495 AbstractCegarLoop]: Abstraction has 1332 states and 4443 transitions. [2022-11-16 11:26:43,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:43,987 INFO L276 IsEmpty]: Start isEmpty. Operand 1332 states and 4443 transitions. [2022-11-16 11:26:43,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:26:43,990 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:26:43,991 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:26:43,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-16 11:26:43,991 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:26:43,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:43,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1677319343, now seen corresponding path program 22 times [2022-11-16 11:26:43,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:43,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401237998] [2022-11-16 11:26:43,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:43,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:44,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:45,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:45,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:45,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401237998] [2022-11-16 11:26:45,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401237998] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:45,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:45,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:26:45,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728246380] [2022-11-16 11:26:45,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:45,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:26:45,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:45,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:26:45,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:26:45,686 INFO L87 Difference]: Start difference. First operand 1332 states and 4443 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:48,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:26:48,528 INFO L93 Difference]: Finished difference Result 2525 states and 7615 transitions. [2022-11-16 11:26:48,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-16 11:26:48,528 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:26:48,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:26:48,533 INFO L225 Difference]: With dead ends: 2525 [2022-11-16 11:26:48,533 INFO L226 Difference]: Without dead ends: 2512 [2022-11-16 11:26:48,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=293, Invalid=637, Unknown=0, NotChecked=0, Total=930 [2022-11-16 11:26:48,534 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 252 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 1577 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 1605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:26:48,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 70 Invalid, 1605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1577 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-16 11:26:48,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2512 states. [2022-11-16 11:26:48,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2512 to 1330. [2022-11-16 11:26:48,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1330 states, 1329 states have (on average 3.3393528969149737) internal successors, (4438), 1329 states have internal predecessors, (4438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:48,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1330 states to 1330 states and 4438 transitions. [2022-11-16 11:26:48,565 INFO L78 Accepts]: Start accepts. Automaton has 1330 states and 4438 transitions. Word has length 33 [2022-11-16 11:26:48,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:26:48,565 INFO L495 AbstractCegarLoop]: Abstraction has 1330 states and 4438 transitions. [2022-11-16 11:26:48,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:48,565 INFO L276 IsEmpty]: Start isEmpty. Operand 1330 states and 4438 transitions. [2022-11-16 11:26:48,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:26:48,569 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:26:48,569 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:26:48,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-16 11:26:48,569 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:26:48,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:48,570 INFO L85 PathProgramCache]: Analyzing trace with hash 694239651, now seen corresponding path program 23 times [2022-11-16 11:26:48,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:48,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215775893] [2022-11-16 11:26:48,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:48,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:48,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:50,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:50,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:50,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215775893] [2022-11-16 11:26:50,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215775893] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:50,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:50,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:26:50,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803964582] [2022-11-16 11:26:50,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:50,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:26:50,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:50,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:26:50,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:26:50,182 INFO L87 Difference]: Start difference. First operand 1330 states and 4438 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:52,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:26:52,814 INFO L93 Difference]: Finished difference Result 2559 states and 7675 transitions. [2022-11-16 11:26:52,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-16 11:26:52,815 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:26:52,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:26:52,820 INFO L225 Difference]: With dead ends: 2559 [2022-11-16 11:26:52,820 INFO L226 Difference]: Without dead ends: 2544 [2022-11-16 11:26:52,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=258, Invalid=554, Unknown=0, NotChecked=0, Total=812 [2022-11-16 11:26:52,821 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 328 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 1448 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 1476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:26:52,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 55 Invalid, 1476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1448 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-16 11:26:52,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2544 states. [2022-11-16 11:26:52,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2544 to 1334. [2022-11-16 11:26:52,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1334 states, 1333 states have (on average 3.334583645911478) internal successors, (4445), 1333 states have internal predecessors, (4445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:52,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1334 states to 1334 states and 4445 transitions. [2022-11-16 11:26:52,851 INFO L78 Accepts]: Start accepts. Automaton has 1334 states and 4445 transitions. Word has length 33 [2022-11-16 11:26:52,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:26:52,852 INFO L495 AbstractCegarLoop]: Abstraction has 1334 states and 4445 transitions. [2022-11-16 11:26:52,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:52,852 INFO L276 IsEmpty]: Start isEmpty. Operand 1334 states and 4445 transitions. [2022-11-16 11:26:52,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:26:52,854 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:26:52,854 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:26:52,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-16 11:26:52,854 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:26:52,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:52,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1992412463, now seen corresponding path program 24 times [2022-11-16 11:26:52,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:52,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795955106] [2022-11-16 11:26:52,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:52,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:52,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:54,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:54,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:54,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795955106] [2022-11-16 11:26:54,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795955106] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:54,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:54,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-16 11:26:54,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684995666] [2022-11-16 11:26:54,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:54,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 11:26:54,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:54,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 11:26:54,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:26:54,972 INFO L87 Difference]: Start difference. First operand 1334 states and 4445 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:57,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:26:57,815 INFO L93 Difference]: Finished difference Result 2541 states and 7647 transitions. [2022-11-16 11:26:57,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-16 11:26:57,815 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:26:57,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:26:57,820 INFO L225 Difference]: With dead ends: 2541 [2022-11-16 11:26:57,820 INFO L226 Difference]: Without dead ends: 2524 [2022-11-16 11:26:57,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=349, Invalid=773, Unknown=0, NotChecked=0, Total=1122 [2022-11-16 11:26:57,822 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 346 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 1579 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 1608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:26:57,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 67 Invalid, 1608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1579 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-16 11:26:57,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2524 states. [2022-11-16 11:26:57,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2524 to 1330. [2022-11-16 11:26:57,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1330 states, 1329 states have (on average 3.3378480060195637) internal successors, (4436), 1329 states have internal predecessors, (4436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:57,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1330 states to 1330 states and 4436 transitions. [2022-11-16 11:26:57,850 INFO L78 Accepts]: Start accepts. Automaton has 1330 states and 4436 transitions. Word has length 33 [2022-11-16 11:26:57,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:26:57,850 INFO L495 AbstractCegarLoop]: Abstraction has 1330 states and 4436 transitions. [2022-11-16 11:26:57,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:26:57,850 INFO L276 IsEmpty]: Start isEmpty. Operand 1330 states and 4436 transitions. [2022-11-16 11:26:57,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:26:57,852 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:26:57,853 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:26:57,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-16 11:26:57,853 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:26:57,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:26:57,853 INFO L85 PathProgramCache]: Analyzing trace with hash 935811043, now seen corresponding path program 25 times [2022-11-16 11:26:57,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:26:57,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002675394] [2022-11-16 11:26:57,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:26:57,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:26:57,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:26:59,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:26:59,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:26:59,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002675394] [2022-11-16 11:26:59,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002675394] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:26:59,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:26:59,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:26:59,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27556982] [2022-11-16 11:26:59,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:26:59,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:26:59,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:26:59,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:26:59,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:26:59,610 INFO L87 Difference]: Start difference. First operand 1330 states and 4436 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:01,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:27:01,881 INFO L93 Difference]: Finished difference Result 2537 states and 7626 transitions. [2022-11-16 11:27:01,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 11:27:01,882 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:27:01,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:27:01,886 INFO L225 Difference]: With dead ends: 2537 [2022-11-16 11:27:01,886 INFO L226 Difference]: Without dead ends: 2526 [2022-11-16 11:27:01,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=225, Invalid=477, Unknown=0, NotChecked=0, Total=702 [2022-11-16 11:27:01,887 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 338 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 1428 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 1456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:27:01,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 59 Invalid, 1456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1428 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:27:01,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2526 states. [2022-11-16 11:27:01,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2526 to 1332. [2022-11-16 11:27:01,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1332 states, 1331 states have (on average 3.3350864012021035) internal successors, (4439), 1331 states have internal predecessors, (4439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:01,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1332 states to 1332 states and 4439 transitions. [2022-11-16 11:27:01,914 INFO L78 Accepts]: Start accepts. Automaton has 1332 states and 4439 transitions. Word has length 33 [2022-11-16 11:27:01,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:27:01,915 INFO L495 AbstractCegarLoop]: Abstraction has 1332 states and 4439 transitions. [2022-11-16 11:27:01,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:01,915 INFO L276 IsEmpty]: Start isEmpty. Operand 1332 states and 4439 transitions. [2022-11-16 11:27:01,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:27:01,918 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:27:01,918 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:01,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-16 11:27:01,919 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:27:01,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:01,919 INFO L85 PathProgramCache]: Analyzing trace with hash -147777441, now seen corresponding path program 26 times [2022-11-16 11:27:01,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:01,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333949621] [2022-11-16 11:27:01,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:01,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:01,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:03,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:03,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:03,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333949621] [2022-11-16 11:27:03,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333949621] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:03,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:03,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-16 11:27:03,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290330400] [2022-11-16 11:27:03,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:03,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-16 11:27:03,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:03,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-16 11:27:03,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-11-16 11:27:03,895 INFO L87 Difference]: Start difference. First operand 1332 states and 4439 transitions. Second operand has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:07,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:27:07,349 INFO L93 Difference]: Finished difference Result 2529 states and 7619 transitions. [2022-11-16 11:27:07,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-16 11:27:07,350 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:27:07,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:27:07,356 INFO L225 Difference]: With dead ends: 2529 [2022-11-16 11:27:07,356 INFO L226 Difference]: Without dead ends: 2512 [2022-11-16 11:27:07,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=332, Invalid=790, Unknown=0, NotChecked=0, Total=1122 [2022-11-16 11:27:07,358 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 325 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 1790 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 1820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-16 11:27:07,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 59 Invalid, 1820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1790 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-16 11:27:07,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2512 states. [2022-11-16 11:27:07,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2512 to 1328. [2022-11-16 11:27:07,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1328 states, 1327 states have (on average 3.339110776186888) internal successors, (4431), 1327 states have internal predecessors, (4431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:07,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1328 states to 1328 states and 4431 transitions. [2022-11-16 11:27:07,394 INFO L78 Accepts]: Start accepts. Automaton has 1328 states and 4431 transitions. Word has length 33 [2022-11-16 11:27:07,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:27:07,394 INFO L495 AbstractCegarLoop]: Abstraction has 1328 states and 4431 transitions. [2022-11-16 11:27:07,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:07,395 INFO L276 IsEmpty]: Start isEmpty. Operand 1328 states and 4431 transitions. [2022-11-16 11:27:07,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:27:07,399 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:27:07,399 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:07,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-16 11:27:07,400 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:27:07,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:07,400 INFO L85 PathProgramCache]: Analyzing trace with hash -2117592707, now seen corresponding path program 27 times [2022-11-16 11:27:07,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:07,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692566688] [2022-11-16 11:27:07,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:07,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:07,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:09,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:09,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:09,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692566688] [2022-11-16 11:27:09,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692566688] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:09,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:09,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:27:09,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758795824] [2022-11-16 11:27:09,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:09,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:27:09,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:09,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:27:09,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:27:09,234 INFO L87 Difference]: Start difference. First operand 1328 states and 4431 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:11,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:27:11,864 INFO L93 Difference]: Finished difference Result 2499 states and 7568 transitions. [2022-11-16 11:27:11,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 11:27:11,864 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:27:11,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:27:11,868 INFO L225 Difference]: With dead ends: 2499 [2022-11-16 11:27:11,868 INFO L226 Difference]: Without dead ends: 2484 [2022-11-16 11:27:11,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=260, Invalid=552, Unknown=0, NotChecked=0, Total=812 [2022-11-16 11:27:11,869 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 257 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 1414 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 1444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:27:11,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 39 Invalid, 1444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1414 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-16 11:27:11,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2484 states. [2022-11-16 11:27:11,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2484 to 1336. [2022-11-16 11:27:11,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1336 states, 1335 states have (on average 3.3325842696629215) internal successors, (4449), 1335 states have internal predecessors, (4449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:11,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 4449 transitions. [2022-11-16 11:27:11,903 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 4449 transitions. Word has length 33 [2022-11-16 11:27:11,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:27:11,903 INFO L495 AbstractCegarLoop]: Abstraction has 1336 states and 4449 transitions. [2022-11-16 11:27:11,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:11,903 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 4449 transitions. [2022-11-16 11:27:11,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:27:11,907 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:27:11,907 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:11,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-16 11:27:11,907 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:27:11,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:11,908 INFO L85 PathProgramCache]: Analyzing trace with hash -509277525, now seen corresponding path program 28 times [2022-11-16 11:27:11,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:11,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470787473] [2022-11-16 11:27:11,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:11,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:11,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:13,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:13,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:13,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470787473] [2022-11-16 11:27:13,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470787473] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:13,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:13,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:27:13,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775363154] [2022-11-16 11:27:13,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:13,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:27:13,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:13,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:27:13,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:27:13,453 INFO L87 Difference]: Start difference. First operand 1336 states and 4449 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:15,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:27:15,888 INFO L93 Difference]: Finished difference Result 2497 states and 7560 transitions. [2022-11-16 11:27:15,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-16 11:27:15,889 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:27:15,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:27:15,894 INFO L225 Difference]: With dead ends: 2497 [2022-11-16 11:27:15,894 INFO L226 Difference]: Without dead ends: 2480 [2022-11-16 11:27:15,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=229, Invalid=473, Unknown=0, NotChecked=0, Total=702 [2022-11-16 11:27:15,895 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 242 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1328 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 1357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:27:15,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 46 Invalid, 1357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1328 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-16 11:27:15,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2480 states. [2022-11-16 11:27:15,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2480 to 1332. [2022-11-16 11:27:15,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1332 states, 1331 states have (on average 3.334335086401202) internal successors, (4438), 1331 states have internal predecessors, (4438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:15,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1332 states to 1332 states and 4438 transitions. [2022-11-16 11:27:15,929 INFO L78 Accepts]: Start accepts. Automaton has 1332 states and 4438 transitions. Word has length 33 [2022-11-16 11:27:15,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:27:15,929 INFO L495 AbstractCegarLoop]: Abstraction has 1332 states and 4438 transitions. [2022-11-16 11:27:15,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:15,929 INFO L276 IsEmpty]: Start isEmpty. Operand 1332 states and 4438 transitions. [2022-11-16 11:27:15,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:27:15,932 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:27:15,932 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:15,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-16 11:27:15,933 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:27:15,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:15,934 INFO L85 PathProgramCache]: Analyzing trace with hash 829011231, now seen corresponding path program 29 times [2022-11-16 11:27:15,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:15,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141710988] [2022-11-16 11:27:15,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:15,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:16,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:17,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:17,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:17,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141710988] [2022-11-16 11:27:17,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141710988] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:17,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:17,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:27:17,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353680804] [2022-11-16 11:27:17,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:17,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:27:17,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:17,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:27:17,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:27:17,488 INFO L87 Difference]: Start difference. First operand 1332 states and 4438 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:19,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:27:19,995 INFO L93 Difference]: Finished difference Result 2473 states and 7518 transitions. [2022-11-16 11:27:19,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 11:27:19,996 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:27:19,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:27:20,001 INFO L225 Difference]: With dead ends: 2473 [2022-11-16 11:27:20,001 INFO L226 Difference]: Without dead ends: 2452 [2022-11-16 11:27:20,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=229, Invalid=473, Unknown=0, NotChecked=0, Total=702 [2022-11-16 11:27:20,001 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 227 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 1413 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 1443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:27:20,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 49 Invalid, 1443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1413 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-16 11:27:20,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2452 states. [2022-11-16 11:27:20,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2452 to 1328. [2022-11-16 11:27:20,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1328 states, 1327 states have (on average 3.3376036171816126) internal successors, (4429), 1327 states have internal predecessors, (4429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:20,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1328 states to 1328 states and 4429 transitions. [2022-11-16 11:27:20,040 INFO L78 Accepts]: Start accepts. Automaton has 1328 states and 4429 transitions. Word has length 33 [2022-11-16 11:27:20,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:27:20,040 INFO L495 AbstractCegarLoop]: Abstraction has 1328 states and 4429 transitions. [2022-11-16 11:27:20,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:20,041 INFO L276 IsEmpty]: Start isEmpty. Operand 1328 states and 4429 transitions. [2022-11-16 11:27:20,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:27:20,043 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:27:20,043 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:20,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-16 11:27:20,043 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:27:20,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:20,044 INFO L85 PathProgramCache]: Analyzing trace with hash -526910481, now seen corresponding path program 30 times [2022-11-16 11:27:20,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:20,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438965784] [2022-11-16 11:27:20,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:20,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:20,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:21,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:21,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:21,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438965784] [2022-11-16 11:27:21,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438965784] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:21,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:21,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:27:21,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957196900] [2022-11-16 11:27:21,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:21,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:27:21,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:21,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:27:21,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:27:21,610 INFO L87 Difference]: Start difference. First operand 1328 states and 4429 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:24,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:27:24,111 INFO L93 Difference]: Finished difference Result 2491 states and 7540 transitions. [2022-11-16 11:27:24,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-16 11:27:24,111 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:27:24,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:27:24,116 INFO L225 Difference]: With dead ends: 2491 [2022-11-16 11:27:24,117 INFO L226 Difference]: Without dead ends: 2480 [2022-11-16 11:27:24,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=251, Invalid=505, Unknown=0, NotChecked=0, Total=756 [2022-11-16 11:27:24,118 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 280 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1332 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 1363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:27:24,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 54 Invalid, 1363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1332 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:27:24,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2480 states. [2022-11-16 11:27:24,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2480 to 1332. [2022-11-16 11:27:24,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1332 states, 1331 states have (on average 3.3335837716003005) internal successors, (4437), 1331 states have internal predecessors, (4437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:24,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1332 states to 1332 states and 4437 transitions. [2022-11-16 11:27:24,157 INFO L78 Accepts]: Start accepts. Automaton has 1332 states and 4437 transitions. Word has length 33 [2022-11-16 11:27:24,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:27:24,157 INFO L495 AbstractCegarLoop]: Abstraction has 1332 states and 4437 transitions. [2022-11-16 11:27:24,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:24,158 INFO L276 IsEmpty]: Start isEmpty. Operand 1332 states and 4437 transitions. [2022-11-16 11:27:24,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:27:24,160 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:27:24,160 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:24,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-11-16 11:27:24,161 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:27:24,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:24,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1610498965, now seen corresponding path program 31 times [2022-11-16 11:27:24,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:24,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977969817] [2022-11-16 11:27:24,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:24,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:24,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:25,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:25,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:25,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977969817] [2022-11-16 11:27:25,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977969817] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:25,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:25,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:27:25,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640387318] [2022-11-16 11:27:25,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:25,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:27:25,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:25,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:27:25,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:27:25,754 INFO L87 Difference]: Start difference. First operand 1332 states and 4437 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:27,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:27:27,974 INFO L93 Difference]: Finished difference Result 2491 states and 7539 transitions. [2022-11-16 11:27:27,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 11:27:27,974 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:27:27,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:27:27,979 INFO L225 Difference]: With dead ends: 2491 [2022-11-16 11:27:27,980 INFO L226 Difference]: Without dead ends: 2476 [2022-11-16 11:27:27,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=219, Invalid=431, Unknown=0, NotChecked=0, Total=650 [2022-11-16 11:27:27,980 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 259 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1310 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 1341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:27:27,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 51 Invalid, 1341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1310 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:27:27,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2476 states. [2022-11-16 11:27:28,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2476 to 1328. [2022-11-16 11:27:28,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1328 states, 1327 states have (on average 3.3376036171816126) internal successors, (4429), 1327 states have internal predecessors, (4429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:28,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1328 states to 1328 states and 4429 transitions. [2022-11-16 11:27:28,007 INFO L78 Accepts]: Start accepts. Automaton has 1328 states and 4429 transitions. Word has length 33 [2022-11-16 11:27:28,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:27:28,007 INFO L495 AbstractCegarLoop]: Abstraction has 1328 states and 4429 transitions. [2022-11-16 11:27:28,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:28,007 INFO L276 IsEmpty]: Start isEmpty. Operand 1328 states and 4429 transitions. [2022-11-16 11:27:28,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:27:28,009 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:27:28,009 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:28,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-11-16 11:27:28,010 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:27:28,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:28,010 INFO L85 PathProgramCache]: Analyzing trace with hash -2116845231, now seen corresponding path program 32 times [2022-11-16 11:27:28,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:28,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238379369] [2022-11-16 11:27:28,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:28,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:28,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:29,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:29,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:29,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238379369] [2022-11-16 11:27:29,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238379369] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:29,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:29,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:27:29,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204486775] [2022-11-16 11:27:29,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:29,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:27:29,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:29,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:27:29,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:27:29,377 INFO L87 Difference]: Start difference. First operand 1328 states and 4429 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:31,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:27:31,597 INFO L93 Difference]: Finished difference Result 2475 states and 7518 transitions. [2022-11-16 11:27:31,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 11:27:31,598 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:27:31,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:27:31,602 INFO L225 Difference]: With dead ends: 2475 [2022-11-16 11:27:31,602 INFO L226 Difference]: Without dead ends: 2454 [2022-11-16 11:27:31,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=234, Invalid=468, Unknown=0, NotChecked=0, Total=702 [2022-11-16 11:27:31,602 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 239 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 1405 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 1436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:27:31,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 59 Invalid, 1436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1405 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:27:31,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2454 states. [2022-11-16 11:27:31,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2454 to 1326. [2022-11-16 11:27:31,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1326 states, 1325 states have (on average 3.338867924528302) internal successors, (4424), 1325 states have internal predecessors, (4424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:31,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1326 states to 1326 states and 4424 transitions. [2022-11-16 11:27:31,627 INFO L78 Accepts]: Start accepts. Automaton has 1326 states and 4424 transitions. Word has length 33 [2022-11-16 11:27:31,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:27:31,627 INFO L495 AbstractCegarLoop]: Abstraction has 1326 states and 4424 transitions. [2022-11-16 11:27:31,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:31,627 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 4424 transitions. [2022-11-16 11:27:31,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:27:31,629 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:27:31,629 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:31,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-11-16 11:27:31,629 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:27:31,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:31,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1874361145, now seen corresponding path program 33 times [2022-11-16 11:27:31,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:31,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501638423] [2022-11-16 11:27:31,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:31,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:31,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:32,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:32,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:32,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501638423] [2022-11-16 11:27:32,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501638423] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:32,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:32,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:27:32,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796401124] [2022-11-16 11:27:32,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:32,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:27:32,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:32,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:27:32,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:27:32,984 INFO L87 Difference]: Start difference. First operand 1326 states and 4424 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:35,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:27:35,256 INFO L93 Difference]: Finished difference Result 2461 states and 7476 transitions. [2022-11-16 11:27:35,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:27:35,256 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:27:35,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:27:35,261 INFO L225 Difference]: With dead ends: 2461 [2022-11-16 11:27:35,261 INFO L226 Difference]: Without dead ends: 2448 [2022-11-16 11:27:35,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=167, Invalid=339, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:27:35,262 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 258 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 1375 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:27:35,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 48 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1375 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-16 11:27:35,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2448 states. [2022-11-16 11:27:35,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2448 to 1330. [2022-11-16 11:27:35,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1330 states, 1329 states have (on average 3.3348382242287435) internal successors, (4432), 1329 states have internal predecessors, (4432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:35,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1330 states to 1330 states and 4432 transitions. [2022-11-16 11:27:35,298 INFO L78 Accepts]: Start accepts. Automaton has 1330 states and 4432 transitions. Word has length 33 [2022-11-16 11:27:35,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:27:35,299 INFO L495 AbstractCegarLoop]: Abstraction has 1330 states and 4432 transitions. [2022-11-16 11:27:35,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:35,299 INFO L276 IsEmpty]: Start isEmpty. Operand 1330 states and 4432 transitions. [2022-11-16 11:27:35,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:27:35,301 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:27:35,301 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:35,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-11-16 11:27:35,302 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:27:35,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:35,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1810914019, now seen corresponding path program 34 times [2022-11-16 11:27:35,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:35,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061699391] [2022-11-16 11:27:35,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:35,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:35,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:38,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:38,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:38,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061699391] [2022-11-16 11:27:38,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061699391] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:38,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:38,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-11-16 11:27:38,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383268787] [2022-11-16 11:27:38,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:38,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 11:27:38,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:38,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 11:27:38,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:27:38,273 INFO L87 Difference]: Start difference. First operand 1330 states and 4432 transitions. Second operand has 18 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 17 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:41,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:27:41,080 INFO L93 Difference]: Finished difference Result 2751 states and 8543 transitions. [2022-11-16 11:27:41,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 11:27:41,081 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 17 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:27:41,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:27:41,086 INFO L225 Difference]: With dead ends: 2751 [2022-11-16 11:27:41,087 INFO L226 Difference]: Without dead ends: 2740 [2022-11-16 11:27:41,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=273, Invalid=657, Unknown=0, NotChecked=0, Total=930 [2022-11-16 11:27:41,088 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 410 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1423 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 1461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:27:41,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 55 Invalid, 1461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1423 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-16 11:27:41,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2740 states. [2022-11-16 11:27:41,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2740 to 1338. [2022-11-16 11:27:41,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1338 states, 1337 states have (on average 3.325355272999252) internal successors, (4446), 1337 states have internal predecessors, (4446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:41,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 4446 transitions. [2022-11-16 11:27:41,123 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 4446 transitions. Word has length 33 [2022-11-16 11:27:41,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:27:41,123 INFO L495 AbstractCegarLoop]: Abstraction has 1338 states and 4446 transitions. [2022-11-16 11:27:41,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 17 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:41,123 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 4446 transitions. [2022-11-16 11:27:41,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:27:41,127 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:27:41,127 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:41,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-11-16 11:27:41,127 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:27:41,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:41,128 INFO L85 PathProgramCache]: Analyzing trace with hash 727325535, now seen corresponding path program 35 times [2022-11-16 11:27:41,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:41,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048285618] [2022-11-16 11:27:41,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:41,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:41,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:42,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:42,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:42,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048285618] [2022-11-16 11:27:42,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048285618] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:42,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:42,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:27:42,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386332486] [2022-11-16 11:27:42,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:42,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:27:42,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:42,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:27:42,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:27:42,469 INFO L87 Difference]: Start difference. First operand 1338 states and 4446 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:44,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:27:44,577 INFO L93 Difference]: Finished difference Result 2483 states and 7506 transitions. [2022-11-16 11:27:44,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:27:44,578 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:27:44,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:27:44,582 INFO L225 Difference]: With dead ends: 2483 [2022-11-16 11:27:44,582 INFO L226 Difference]: Without dead ends: 2466 [2022-11-16 11:27:44,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=167, Invalid=339, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:27:44,583 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 274 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 1338 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 1368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:27:44,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 39 Invalid, 1368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1338 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:27:44,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2466 states. [2022-11-16 11:27:44,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2466 to 1336. [2022-11-16 11:27:44,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1336 states, 1335 states have (on average 3.3265917602996256) internal successors, (4441), 1335 states have internal predecessors, (4441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:44,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 4441 transitions. [2022-11-16 11:27:44,612 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 4441 transitions. Word has length 33 [2022-11-16 11:27:44,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:27:44,612 INFO L495 AbstractCegarLoop]: Abstraction has 1336 states and 4441 transitions. [2022-11-16 11:27:44,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:44,613 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 4441 transitions. [2022-11-16 11:27:44,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:27:44,615 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:27:44,615 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:44,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-11-16 11:27:44,615 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:27:44,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:44,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1021331753, now seen corresponding path program 36 times [2022-11-16 11:27:44,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:44,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356009285] [2022-11-16 11:27:44,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:44,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:44,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:46,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:46,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:46,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356009285] [2022-11-16 11:27:46,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356009285] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:46,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:46,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-16 11:27:46,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999435540] [2022-11-16 11:27:46,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:46,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 11:27:46,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:46,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 11:27:46,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:27:46,697 INFO L87 Difference]: Start difference. First operand 1336 states and 4441 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:48,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:27:48,982 INFO L93 Difference]: Finished difference Result 2479 states and 7496 transitions. [2022-11-16 11:27:48,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 11:27:48,982 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:27:48,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:27:48,987 INFO L225 Difference]: With dead ends: 2479 [2022-11-16 11:27:48,987 INFO L226 Difference]: Without dead ends: 2468 [2022-11-16 11:27:48,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=253, Invalid=559, Unknown=0, NotChecked=0, Total=812 [2022-11-16 11:27:48,988 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 294 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 1434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:27:48,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 56 Invalid, 1434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1402 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:27:48,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2468 states. [2022-11-16 11:27:49,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2468 to 1340. [2022-11-16 11:27:49,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1340 states, 1339 states have (on average 3.3226288274831965) internal successors, (4449), 1339 states have internal predecessors, (4449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:49,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 4449 transitions. [2022-11-16 11:27:49,020 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 4449 transitions. Word has length 33 [2022-11-16 11:27:49,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:27:49,021 INFO L495 AbstractCegarLoop]: Abstraction has 1340 states and 4449 transitions. [2022-11-16 11:27:49,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:49,021 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 4449 transitions. [2022-11-16 11:27:49,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:27:49,023 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:27:49,023 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:49,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-11-16 11:27:49,024 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:27:49,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:49,025 INFO L85 PathProgramCache]: Analyzing trace with hash -2104920237, now seen corresponding path program 37 times [2022-11-16 11:27:49,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:49,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957197502] [2022-11-16 11:27:49,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:49,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:49,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:50,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:50,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:50,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957197502] [2022-11-16 11:27:50,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957197502] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:50,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:50,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-16 11:27:50,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108339985] [2022-11-16 11:27:50,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:50,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 11:27:50,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:50,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 11:27:50,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:27:50,639 INFO L87 Difference]: Start difference. First operand 1340 states and 4449 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:53,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:27:53,051 INFO L93 Difference]: Finished difference Result 2481 states and 7498 transitions. [2022-11-16 11:27:53,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 11:27:53,052 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:27:53,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:27:53,057 INFO L225 Difference]: With dead ends: 2481 [2022-11-16 11:27:53,057 INFO L226 Difference]: Without dead ends: 2466 [2022-11-16 11:27:53,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=258, Invalid=612, Unknown=0, NotChecked=0, Total=870 [2022-11-16 11:27:53,058 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 313 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 1374 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 1405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:27:53,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 38 Invalid, 1405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1374 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-16 11:27:53,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2466 states. [2022-11-16 11:27:53,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2466 to 1334. [2022-11-16 11:27:53,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1334 states, 1333 states have (on average 3.3293323330832707) internal successors, (4438), 1333 states have internal predecessors, (4438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:53,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1334 states to 1334 states and 4438 transitions. [2022-11-16 11:27:53,090 INFO L78 Accepts]: Start accepts. Automaton has 1334 states and 4438 transitions. Word has length 33 [2022-11-16 11:27:53,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:27:53,090 INFO L495 AbstractCegarLoop]: Abstraction has 1334 states and 4438 transitions. [2022-11-16 11:27:53,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:53,090 INFO L276 IsEmpty]: Start isEmpty. Operand 1334 states and 4438 transitions. [2022-11-16 11:27:53,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:27:53,094 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:27:53,094 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:53,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-11-16 11:27:53,094 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:27:53,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:53,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1683700793, now seen corresponding path program 38 times [2022-11-16 11:27:53,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:53,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703311047] [2022-11-16 11:27:53,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:53,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:53,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:54,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:54,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:54,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703311047] [2022-11-16 11:27:54,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703311047] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:54,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:54,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:27:54,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081884644] [2022-11-16 11:27:54,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:54,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:27:54,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:54,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:27:54,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:27:54,683 INFO L87 Difference]: Start difference. First operand 1334 states and 4438 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:56,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:27:56,630 INFO L93 Difference]: Finished difference Result 2465 states and 7477 transitions. [2022-11-16 11:27:56,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:27:56,631 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:27:56,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:27:56,637 INFO L225 Difference]: With dead ends: 2465 [2022-11-16 11:27:56,637 INFO L226 Difference]: Without dead ends: 2438 [2022-11-16 11:27:56,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=172, Invalid=334, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:27:56,638 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 216 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1328 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 1358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:27:56,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 46 Invalid, 1358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1328 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:27:56,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2438 states. [2022-11-16 11:27:56,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2438 to 1328. [2022-11-16 11:27:56,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1328 states, 1327 states have (on average 3.3330821401657875) internal successors, (4423), 1327 states have internal predecessors, (4423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:56,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1328 states to 1328 states and 4423 transitions. [2022-11-16 11:27:56,672 INFO L78 Accepts]: Start accepts. Automaton has 1328 states and 4423 transitions. Word has length 33 [2022-11-16 11:27:56,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:27:56,672 INFO L495 AbstractCegarLoop]: Abstraction has 1328 states and 4423 transitions. [2022-11-16 11:27:56,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:56,672 INFO L276 IsEmpty]: Start isEmpty. Operand 1328 states and 4423 transitions. [2022-11-16 11:27:56,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:27:56,675 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:27:56,675 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:56,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-11-16 11:27:56,676 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:27:56,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:56,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1192395289, now seen corresponding path program 39 times [2022-11-16 11:27:56,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:56,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874916099] [2022-11-16 11:27:56,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:56,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:56,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:58,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:58,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:58,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874916099] [2022-11-16 11:27:58,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874916099] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:58,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:58,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:27:58,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658882370] [2022-11-16 11:27:58,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:58,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:27:58,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:58,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:27:58,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:27:58,226 INFO L87 Difference]: Start difference. First operand 1328 states and 4423 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:00,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:28:00,415 INFO L93 Difference]: Finished difference Result 2501 states and 7533 transitions. [2022-11-16 11:28:00,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:28:00,416 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:28:00,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:28:00,420 INFO L225 Difference]: With dead ends: 2501 [2022-11-16 11:28:00,421 INFO L226 Difference]: Without dead ends: 2488 [2022-11-16 11:28:00,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=165, Invalid=341, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:28:00,421 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 256 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 1366 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 1396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:28:00,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 61 Invalid, 1396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1366 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-16 11:28:00,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2488 states. [2022-11-16 11:28:00,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2488 to 1340. [2022-11-16 11:28:00,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1340 states, 1339 states have (on average 3.3211351755041076) internal successors, (4447), 1339 states have internal predecessors, (4447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:00,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 4447 transitions. [2022-11-16 11:28:00,458 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 4447 transitions. Word has length 33 [2022-11-16 11:28:00,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:28:00,458 INFO L495 AbstractCegarLoop]: Abstraction has 1340 states and 4447 transitions. [2022-11-16 11:28:00,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:00,458 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 4447 transitions. [2022-11-16 11:28:00,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:28:00,461 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:28:00,461 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:28:00,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-11-16 11:28:00,461 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:28:00,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:28:00,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1128948163, now seen corresponding path program 40 times [2022-11-16 11:28:00,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:28:00,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416096941] [2022-11-16 11:28:00,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:28:00,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:28:00,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:28:01,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:28:01,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:28:01,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416096941] [2022-11-16 11:28:01,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416096941] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:28:01,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:28:01,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:28:01,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36272226] [2022-11-16 11:28:01,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:28:01,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:28:01,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:28:01,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:28:01,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:28:01,699 INFO L87 Difference]: Start difference. First operand 1340 states and 4447 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:03,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:28:03,818 INFO L93 Difference]: Finished difference Result 2515 states and 7549 transitions. [2022-11-16 11:28:03,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:28:03,819 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:28:03,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:28:03,824 INFO L225 Difference]: With dead ends: 2515 [2022-11-16 11:28:03,824 INFO L226 Difference]: Without dead ends: 2504 [2022-11-16 11:28:03,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=165, Invalid=341, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:28:03,824 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 271 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 1300 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:28:03,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 53 Invalid, 1329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1300 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:28:03,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2504 states. [2022-11-16 11:28:03,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2504 to 1342. [2022-11-16 11:28:03,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1342 states, 1341 states have (on average 3.318419090231171) internal successors, (4450), 1341 states have internal predecessors, (4450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:03,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 4450 transitions. [2022-11-16 11:28:03,852 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 4450 transitions. Word has length 33 [2022-11-16 11:28:03,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:28:03,852 INFO L495 AbstractCegarLoop]: Abstraction has 1342 states and 4450 transitions. [2022-11-16 11:28:03,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:03,852 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 4450 transitions. [2022-11-16 11:28:03,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:28:03,855 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:28:03,855 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:28:03,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-11-16 11:28:03,855 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:28:03,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:28:03,856 INFO L85 PathProgramCache]: Analyzing trace with hash 45359679, now seen corresponding path program 41 times [2022-11-16 11:28:03,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:28:03,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774995131] [2022-11-16 11:28:03,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:28:03,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:28:03,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:28:05,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:28:05,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:28:05,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774995131] [2022-11-16 11:28:05,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774995131] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:28:05,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:28:05,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:28:05,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321703179] [2022-11-16 11:28:05,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:28:05,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:28:05,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:28:05,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:28:05,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:28:05,220 INFO L87 Difference]: Start difference. First operand 1342 states and 4450 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:07,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:28:07,330 INFO L93 Difference]: Finished difference Result 2503 states and 7535 transitions. [2022-11-16 11:28:07,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:28:07,330 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:28:07,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:28:07,335 INFO L225 Difference]: With dead ends: 2503 [2022-11-16 11:28:07,335 INFO L226 Difference]: Without dead ends: 2486 [2022-11-16 11:28:07,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=165, Invalid=341, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:28:07,335 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 233 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1420 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 1448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:28:07,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 46 Invalid, 1448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1420 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:28:07,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2486 states. [2022-11-16 11:28:07,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2486 to 1338. [2022-11-16 11:28:07,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1338 states, 1337 states have (on average 3.3223635003739718) internal successors, (4442), 1337 states have internal predecessors, (4442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:07,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 4442 transitions. [2022-11-16 11:28:07,367 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 4442 transitions. Word has length 33 [2022-11-16 11:28:07,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:28:07,368 INFO L495 AbstractCegarLoop]: Abstraction has 1338 states and 4442 transitions. [2022-11-16 11:28:07,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:07,368 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 4442 transitions. [2022-11-16 11:28:07,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:28:07,370 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:28:07,370 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:28:07,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-11-16 11:28:07,371 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:28:07,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:28:07,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1703297609, now seen corresponding path program 42 times [2022-11-16 11:28:07,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:28:07,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865533984] [2022-11-16 11:28:07,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:28:07,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:28:07,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:28:08,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:28:08,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:28:08,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865533984] [2022-11-16 11:28:08,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865533984] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:28:08,890 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:28:08,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:28:08,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702743007] [2022-11-16 11:28:08,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:28:08,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:28:08,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:28:08,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:28:08,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:28:08,891 INFO L87 Difference]: Start difference. First operand 1338 states and 4442 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:11,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:28:11,062 INFO L93 Difference]: Finished difference Result 2503 states and 7533 transitions. [2022-11-16 11:28:11,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:28:11,063 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:28:11,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:28:11,068 INFO L225 Difference]: With dead ends: 2503 [2022-11-16 11:28:11,068 INFO L226 Difference]: Without dead ends: 2492 [2022-11-16 11:28:11,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=204, Invalid=396, Unknown=0, NotChecked=0, Total=600 [2022-11-16 11:28:11,068 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 289 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1269 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 1299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:28:11,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 54 Invalid, 1299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1269 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:28:11,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2492 states. [2022-11-16 11:28:11,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2492 to 1342. [2022-11-16 11:28:11,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1342 states, 1341 states have (on average 3.318419090231171) internal successors, (4450), 1341 states have internal predecessors, (4450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:11,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 4450 transitions. [2022-11-16 11:28:11,096 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 4450 transitions. Word has length 33 [2022-11-16 11:28:11,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:28:11,096 INFO L495 AbstractCegarLoop]: Abstraction has 1342 states and 4450 transitions. [2022-11-16 11:28:11,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:11,096 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 4450 transitions. [2022-11-16 11:28:11,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:28:11,099 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:28:11,099 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:28:11,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-11-16 11:28:11,099 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:28:11,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:28:11,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1508081203, now seen corresponding path program 43 times [2022-11-16 11:28:11,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:28:11,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756555467] [2022-11-16 11:28:11,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:28:11,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:28:11,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:28:12,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:28:12,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:28:12,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756555467] [2022-11-16 11:28:12,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756555467] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:28:12,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:28:12,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:28:12,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502272924] [2022-11-16 11:28:12,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:28:12,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:28:12,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:28:12,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:28:12,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:28:12,481 INFO L87 Difference]: Start difference. First operand 1342 states and 4450 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:14,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:28:14,448 INFO L93 Difference]: Finished difference Result 2505 states and 7535 transitions. [2022-11-16 11:28:14,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:28:14,454 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:28:14,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:28:14,460 INFO L225 Difference]: With dead ends: 2505 [2022-11-16 11:28:14,460 INFO L226 Difference]: Without dead ends: 2490 [2022-11-16 11:28:14,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=186, Invalid=366, Unknown=0, NotChecked=0, Total=552 [2022-11-16 11:28:14,461 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 275 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1138 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 1169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:28:14,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 46 Invalid, 1169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1138 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:28:14,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2490 states. [2022-11-16 11:28:14,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2490 to 1332. [2022-11-16 11:28:14,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1332 states, 1331 states have (on average 3.330578512396694) internal successors, (4433), 1331 states have internal predecessors, (4433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:14,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1332 states to 1332 states and 4433 transitions. [2022-11-16 11:28:14,495 INFO L78 Accepts]: Start accepts. Automaton has 1332 states and 4433 transitions. Word has length 33 [2022-11-16 11:28:14,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:28:14,495 INFO L495 AbstractCegarLoop]: Abstraction has 1332 states and 4433 transitions. [2022-11-16 11:28:14,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:14,495 INFO L276 IsEmpty]: Start isEmpty. Operand 1332 states and 4433 transitions. [2022-11-16 11:28:14,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:28:14,499 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:28:14,499 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:28:14,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-11-16 11:28:14,500 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:28:14,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:28:14,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1001734937, now seen corresponding path program 44 times [2022-11-16 11:28:14,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:28:14,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44290935] [2022-11-16 11:28:14,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:28:14,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:28:14,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:28:15,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:28:15,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:28:15,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44290935] [2022-11-16 11:28:15,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44290935] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:28:15,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:28:15,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:28:15,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244668096] [2022-11-16 11:28:15,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:28:15,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:28:15,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:28:15,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:28:15,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:28:15,992 INFO L87 Difference]: Start difference. First operand 1332 states and 4433 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:17,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:28:17,889 INFO L93 Difference]: Finished difference Result 2489 states and 7514 transitions. [2022-11-16 11:28:17,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:28:17,890 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:28:17,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:28:17,895 INFO L225 Difference]: With dead ends: 2489 [2022-11-16 11:28:17,895 INFO L226 Difference]: Without dead ends: 2464 [2022-11-16 11:28:17,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=188, Invalid=364, Unknown=0, NotChecked=0, Total=552 [2022-11-16 11:28:17,895 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 241 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 1141 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 1171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:28:17,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 53 Invalid, 1171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1141 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:28:17,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2464 states. [2022-11-16 11:28:17,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2464 to 1332. [2022-11-16 11:28:17,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1332 states, 1331 states have (on average 3.327573253193088) internal successors, (4429), 1331 states have internal predecessors, (4429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:17,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1332 states to 1332 states and 4429 transitions. [2022-11-16 11:28:17,924 INFO L78 Accepts]: Start accepts. Automaton has 1332 states and 4429 transitions. Word has length 33 [2022-11-16 11:28:17,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:28:17,924 INFO L495 AbstractCegarLoop]: Abstraction has 1332 states and 4429 transitions. [2022-11-16 11:28:17,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:17,924 INFO L276 IsEmpty]: Start isEmpty. Operand 1332 states and 4429 transitions. [2022-11-16 11:28:17,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:28:17,927 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:28:17,927 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:28:17,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-11-16 11:28:17,928 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:28:17,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:28:17,928 INFO L85 PathProgramCache]: Analyzing trace with hash -2022139641, now seen corresponding path program 45 times [2022-11-16 11:28:17,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:28:17,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24310113] [2022-11-16 11:28:17,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:28:17,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:28:17,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:28:19,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:28:19,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:28:19,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24310113] [2022-11-16 11:28:19,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24310113] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:28:19,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:28:19,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:28:19,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932571356] [2022-11-16 11:28:19,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:28:19,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:28:19,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:28:19,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:28:19,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:28:19,411 INFO L87 Difference]: Start difference. First operand 1332 states and 4429 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:21,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:28:21,457 INFO L93 Difference]: Finished difference Result 2517 states and 7584 transitions. [2022-11-16 11:28:21,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:28:21,458 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:28:21,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:28:21,463 INFO L225 Difference]: With dead ends: 2517 [2022-11-16 11:28:21,463 INFO L226 Difference]: Without dead ends: 2504 [2022-11-16 11:28:21,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=161, Invalid=345, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:28:21,463 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 227 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 1350 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 1378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:28:21,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 49 Invalid, 1378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1350 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:28:21,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2504 states. [2022-11-16 11:28:21,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2504 to 1338. [2022-11-16 11:28:21,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1338 states, 1337 states have (on average 3.325355272999252) internal successors, (4446), 1337 states have internal predecessors, (4446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:21,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 4446 transitions. [2022-11-16 11:28:21,494 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 4446 transitions. Word has length 33 [2022-11-16 11:28:21,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:28:21,494 INFO L495 AbstractCegarLoop]: Abstraction has 1338 states and 4446 transitions. [2022-11-16 11:28:21,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:21,495 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 4446 transitions. [2022-11-16 11:28:21,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:28:21,498 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:28:21,498 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:28:21,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-11-16 11:28:21,498 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:28:21,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:28:21,499 INFO L85 PathProgramCache]: Analyzing trace with hash -322350801, now seen corresponding path program 46 times [2022-11-16 11:28:21,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:28:21,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261562343] [2022-11-16 11:28:21,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:28:21,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:28:21,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:28:22,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:28:22,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:28:22,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261562343] [2022-11-16 11:28:22,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261562343] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:28:22,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:28:22,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:28:22,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84306996] [2022-11-16 11:28:22,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:28:22,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:28:22,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:28:22,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:28:22,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:28:22,675 INFO L87 Difference]: Start difference. First operand 1338 states and 4446 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:24,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:28:24,489 INFO L93 Difference]: Finished difference Result 2535 states and 7608 transitions. [2022-11-16 11:28:24,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:28:24,490 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:28:24,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:28:24,494 INFO L225 Difference]: With dead ends: 2535 [2022-11-16 11:28:24,494 INFO L226 Difference]: Without dead ends: 2524 [2022-11-16 11:28:24,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:28:24,495 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 306 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 1208 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 1236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:28:24,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 57 Invalid, 1236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1208 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-16 11:28:24,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2524 states. [2022-11-16 11:28:24,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2524 to 1340. [2022-11-16 11:28:24,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1340 states, 1339 states have (on average 3.3226288274831965) internal successors, (4449), 1339 states have internal predecessors, (4449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:24,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 4449 transitions. [2022-11-16 11:28:24,519 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 4449 transitions. Word has length 33 [2022-11-16 11:28:24,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:28:24,520 INFO L495 AbstractCegarLoop]: Abstraction has 1340 states and 4449 transitions. [2022-11-16 11:28:24,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:24,520 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 4449 transitions. [2022-11-16 11:28:24,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:28:24,522 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:28:24,522 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:28:24,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-11-16 11:28:24,523 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:28:24,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:28:24,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1283338605, now seen corresponding path program 47 times [2022-11-16 11:28:24,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:28:24,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747457043] [2022-11-16 11:28:24,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:28:24,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:28:24,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:28:25,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:28:25,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:28:25,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747457043] [2022-11-16 11:28:25,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747457043] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:28:25,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:28:25,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:28:25,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996480340] [2022-11-16 11:28:25,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:28:25,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:28:25,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:28:25,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:28:25,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:28:25,725 INFO L87 Difference]: Start difference. First operand 1340 states and 4449 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:27,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:28:27,681 INFO L93 Difference]: Finished difference Result 2523 states and 7594 transitions. [2022-11-16 11:28:27,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:28:27,682 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:28:27,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:28:27,686 INFO L225 Difference]: With dead ends: 2523 [2022-11-16 11:28:27,686 INFO L226 Difference]: Without dead ends: 2502 [2022-11-16 11:28:27,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=163, Invalid=343, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:28:27,687 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 251 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 1375 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 1403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:28:27,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 38 Invalid, 1403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1375 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:28:27,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2502 states. [2022-11-16 11:28:27,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2502 to 1336. [2022-11-16 11:28:27,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1336 states, 1335 states have (on average 3.3265917602996256) internal successors, (4441), 1335 states have internal predecessors, (4441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:27,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 4441 transitions. [2022-11-16 11:28:27,713 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 4441 transitions. Word has length 33 [2022-11-16 11:28:27,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:28:27,714 INFO L495 AbstractCegarLoop]: Abstraction has 1336 states and 4441 transitions. [2022-11-16 11:28:27,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:27,714 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 4441 transitions. [2022-11-16 11:28:27,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:28:27,716 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:28:27,716 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:28:27,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-11-16 11:28:27,716 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:28:27,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:28:27,716 INFO L85 PathProgramCache]: Analyzing trace with hash -847879739, now seen corresponding path program 48 times [2022-11-16 11:28:27,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:28:27,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546687162] [2022-11-16 11:28:27,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:28:27,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:28:27,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:28:29,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:28:29,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:28:29,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546687162] [2022-11-16 11:28:29,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546687162] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:28:29,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:28:29,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:28:29,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234759274] [2022-11-16 11:28:29,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:28:29,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:28:29,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:28:29,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:28:29,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:28:29,274 INFO L87 Difference]: Start difference. First operand 1336 states and 4441 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:31,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:28:31,503 INFO L93 Difference]: Finished difference Result 2535 states and 7606 transitions. [2022-11-16 11:28:31,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:28:31,504 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:28:31,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:28:31,509 INFO L225 Difference]: With dead ends: 2535 [2022-11-16 11:28:31,510 INFO L226 Difference]: Without dead ends: 2522 [2022-11-16 11:28:31,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=160, Invalid=346, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:28:31,510 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 295 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1303 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 1332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:28:31,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 45 Invalid, 1332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1303 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-16 11:28:31,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2522 states. [2022-11-16 11:28:31,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2522 to 1338. [2022-11-16 11:28:31,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1338 states, 1337 states have (on average 3.3238593866866117) internal successors, (4444), 1337 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:31,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 4444 transitions. [2022-11-16 11:28:31,542 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 4444 transitions. Word has length 33 [2022-11-16 11:28:31,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:28:31,542 INFO L495 AbstractCegarLoop]: Abstraction has 1338 states and 4444 transitions. [2022-11-16 11:28:31,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:31,543 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 4444 transitions. [2022-11-16 11:28:31,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:28:31,546 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:28:31,546 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:28:31,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-11-16 11:28:31,546 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:28:31,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:28:31,547 INFO L85 PathProgramCache]: Analyzing trace with hash -911326865, now seen corresponding path program 49 times [2022-11-16 11:28:31,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:28:31,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788060899] [2022-11-16 11:28:31,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:28:31,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:28:31,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:28:32,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:28:32,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:28:32,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788060899] [2022-11-16 11:28:32,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788060899] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:28:32,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:28:32,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:28:32,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663781758] [2022-11-16 11:28:32,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:28:32,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:28:32,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:28:32,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:28:32,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:28:32,952 INFO L87 Difference]: Start difference. First operand 1338 states and 4444 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:35,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:28:35,227 INFO L93 Difference]: Finished difference Result 2537 states and 7610 transitions. [2022-11-16 11:28:35,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:28:35,228 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:28:35,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:28:35,233 INFO L225 Difference]: With dead ends: 2537 [2022-11-16 11:28:35,233 INFO L226 Difference]: Without dead ends: 2526 [2022-11-16 11:28:35,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=160, Invalid=346, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:28:35,234 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 272 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 1332 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 1359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:28:35,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 54 Invalid, 1359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1332 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-16 11:28:35,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2526 states. [2022-11-16 11:28:35,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2526 to 1340. [2022-11-16 11:28:35,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1340 states, 1339 states have (on average 3.3211351755041076) internal successors, (4447), 1339 states have internal predecessors, (4447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:35,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 4447 transitions. [2022-11-16 11:28:35,268 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 4447 transitions. Word has length 33 [2022-11-16 11:28:35,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:28:35,268 INFO L495 AbstractCegarLoop]: Abstraction has 1340 states and 4447 transitions. [2022-11-16 11:28:35,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:35,269 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 4447 transitions. [2022-11-16 11:28:35,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:28:35,271 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:28:35,271 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:28:35,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-11-16 11:28:35,271 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:28:35,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:28:35,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1994915349, now seen corresponding path program 50 times [2022-11-16 11:28:35,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:28:35,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565886775] [2022-11-16 11:28:35,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:28:35,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:28:35,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:28:36,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:28:36,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:28:36,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565886775] [2022-11-16 11:28:36,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565886775] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:28:36,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:28:36,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:28:36,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318239853] [2022-11-16 11:28:36,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:28:36,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:28:36,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:28:36,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:28:36,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:28:36,964 INFO L87 Difference]: Start difference. First operand 1340 states and 4447 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:39,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:28:39,504 INFO L93 Difference]: Finished difference Result 2525 states and 7596 transitions. [2022-11-16 11:28:39,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:28:39,504 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:28:39,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:28:39,511 INFO L225 Difference]: With dead ends: 2525 [2022-11-16 11:28:39,511 INFO L226 Difference]: Without dead ends: 2508 [2022-11-16 11:28:39,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=160, Invalid=346, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:28:39,512 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 240 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1386 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 1413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:28:39,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 45 Invalid, 1413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1386 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-16 11:28:39,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2508 states. [2022-11-16 11:28:39,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2508 to 1336. [2022-11-16 11:28:39,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1336 states, 1335 states have (on average 3.3250936329588017) internal successors, (4439), 1335 states have internal predecessors, (4439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:39,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 4439 transitions. [2022-11-16 11:28:39,547 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 4439 transitions. Word has length 33 [2022-11-16 11:28:39,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:28:39,547 INFO L495 AbstractCegarLoop]: Abstraction has 1336 states and 4439 transitions. [2022-11-16 11:28:39,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:39,547 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 4439 transitions. [2022-11-16 11:28:39,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:28:39,549 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:28:39,549 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:28:39,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-11-16 11:28:39,550 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:28:39,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:28:39,550 INFO L85 PathProgramCache]: Analyzing trace with hash 2005755589, now seen corresponding path program 51 times [2022-11-16 11:28:39,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:28:39,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231850512] [2022-11-16 11:28:39,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:28:39,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:28:39,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:28:41,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:28:41,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:28:41,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231850512] [2022-11-16 11:28:41,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231850512] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:28:41,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:28:41,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:28:41,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530370857] [2022-11-16 11:28:41,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:28:41,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:28:41,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:28:41,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:28:41,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:28:41,093 INFO L87 Difference]: Start difference. First operand 1336 states and 4439 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:43,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:28:43,173 INFO L93 Difference]: Finished difference Result 2557 states and 7643 transitions. [2022-11-16 11:28:43,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:28:43,174 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:28:43,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:28:43,179 INFO L225 Difference]: With dead ends: 2557 [2022-11-16 11:28:43,179 INFO L226 Difference]: Without dead ends: 2546 [2022-11-16 11:28:43,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=161, Invalid=345, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:28:43,180 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 276 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 1368 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 1395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:28:43,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 60 Invalid, 1395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1368 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:28:43,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2546 states. [2022-11-16 11:28:43,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2546 to 1340. [2022-11-16 11:28:43,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1340 states, 1339 states have (on average 3.3226288274831965) internal successors, (4449), 1339 states have internal predecessors, (4449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:43,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 4449 transitions. [2022-11-16 11:28:43,213 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 4449 transitions. Word has length 33 [2022-11-16 11:28:43,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:28:43,213 INFO L495 AbstractCegarLoop]: Abstraction has 1340 states and 4449 transitions. [2022-11-16 11:28:43,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:43,213 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 4449 transitions. [2022-11-16 11:28:43,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:28:43,215 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:28:43,215 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:28:43,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-11-16 11:28:43,215 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:28:43,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:28:43,216 INFO L85 PathProgramCache]: Analyzing trace with hash -683522301, now seen corresponding path program 52 times [2022-11-16 11:28:43,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:28:43,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655194548] [2022-11-16 11:28:43,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:28:43,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:28:43,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:28:44,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:28:44,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:28:44,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655194548] [2022-11-16 11:28:44,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655194548] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:28:44,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:28:44,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:28:44,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106761745] [2022-11-16 11:28:44,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:28:44,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:28:44,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:28:44,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:28:44,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:28:44,543 INFO L87 Difference]: Start difference. First operand 1340 states and 4449 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:46,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:28:46,493 INFO L93 Difference]: Finished difference Result 2563 states and 7653 transitions. [2022-11-16 11:28:46,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:28:46,493 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:28:46,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:28:46,498 INFO L225 Difference]: With dead ends: 2563 [2022-11-16 11:28:46,498 INFO L226 Difference]: Without dead ends: 2544 [2022-11-16 11:28:46,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:28:46,498 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 332 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1276 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 1303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:28:46,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 50 Invalid, 1303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1276 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:28:46,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2544 states. [2022-11-16 11:28:46,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2544 to 1338. [2022-11-16 11:28:46,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1338 states, 1337 states have (on average 3.3238593866866117) internal successors, (4444), 1337 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:46,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 4444 transitions. [2022-11-16 11:28:46,528 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 4444 transitions. Word has length 33 [2022-11-16 11:28:46,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:28:46,528 INFO L495 AbstractCegarLoop]: Abstraction has 1338 states and 4444 transitions. [2022-11-16 11:28:46,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:46,528 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 4444 transitions. [2022-11-16 11:28:46,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:28:46,530 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:28:46,530 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:28:46,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-11-16 11:28:46,531 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:28:46,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:28:46,531 INFO L85 PathProgramCache]: Analyzing trace with hash 242519623, now seen corresponding path program 53 times [2022-11-16 11:28:46,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:28:46,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264672675] [2022-11-16 11:28:46,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:28:46,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:28:46,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:28:47,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:28:47,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:28:47,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264672675] [2022-11-16 11:28:47,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264672675] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:28:47,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:28:47,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:28:47,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496132678] [2022-11-16 11:28:47,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:28:47,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:28:47,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:28:47,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:28:47,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:28:47,928 INFO L87 Difference]: Start difference. First operand 1338 states and 4444 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:50,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:28:50,078 INFO L93 Difference]: Finished difference Result 2559 states and 7645 transitions. [2022-11-16 11:28:50,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:28:50,079 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:28:50,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:28:50,084 INFO L225 Difference]: With dead ends: 2559 [2022-11-16 11:28:50,084 INFO L226 Difference]: Without dead ends: 2548 [2022-11-16 11:28:50,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=160, Invalid=346, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:28:50,085 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 330 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1289 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 1315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:28:50,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 46 Invalid, 1315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1289 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:28:50,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2548 states. [2022-11-16 11:28:50,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2548 to 1340. [2022-11-16 11:28:50,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1340 states, 1339 states have (on average 3.3211351755041076) internal successors, (4447), 1339 states have internal predecessors, (4447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:50,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 4447 transitions. [2022-11-16 11:28:50,129 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 4447 transitions. Word has length 33 [2022-11-16 11:28:50,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:28:50,129 INFO L495 AbstractCegarLoop]: Abstraction has 1340 states and 4447 transitions. [2022-11-16 11:28:50,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:50,130 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 4447 transitions. [2022-11-16 11:28:50,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:28:50,131 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:28:50,132 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:28:50,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-11-16 11:28:50,132 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:28:50,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:28:50,133 INFO L85 PathProgramCache]: Analyzing trace with hash -841068861, now seen corresponding path program 54 times [2022-11-16 11:28:50,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:28:50,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735230555] [2022-11-16 11:28:50,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:28:50,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:28:50,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:28:52,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:28:52,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:28:52,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735230555] [2022-11-16 11:28:52,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735230555] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:28:52,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:28:52,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-16 11:28:52,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522852536] [2022-11-16 11:28:52,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:28:52,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-16 11:28:52,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:28:52,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-16 11:28:52,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-11-16 11:28:52,226 INFO L87 Difference]: Start difference. First operand 1340 states and 4447 transitions. Second operand has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:54,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:28:54,685 INFO L93 Difference]: Finished difference Result 2551 states and 7638 transitions. [2022-11-16 11:28:54,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:28:54,686 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:28:54,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:28:54,690 INFO L225 Difference]: With dead ends: 2551 [2022-11-16 11:28:54,690 INFO L226 Difference]: Without dead ends: 2536 [2022-11-16 11:28:54,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=216, Invalid=540, Unknown=0, NotChecked=0, Total=756 [2022-11-16 11:28:54,691 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 396 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:28:54,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 44 Invalid, 1288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1257 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:28:54,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2536 states. [2022-11-16 11:28:54,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2536 to 1338. [2022-11-16 11:28:54,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1338 states, 1337 states have (on average 3.3223635003739718) internal successors, (4442), 1337 states have internal predecessors, (4442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:54,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 4442 transitions. [2022-11-16 11:28:54,718 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 4442 transitions. Word has length 33 [2022-11-16 11:28:54,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:28:54,718 INFO L495 AbstractCegarLoop]: Abstraction has 1338 states and 4442 transitions. [2022-11-16 11:28:54,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:54,718 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 4442 transitions. [2022-11-16 11:28:54,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:28:54,721 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:28:54,721 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:28:54,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-11-16 11:28:54,721 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:28:54,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:28:54,722 INFO L85 PathProgramCache]: Analyzing trace with hash 84973063, now seen corresponding path program 55 times [2022-11-16 11:28:54,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:28:54,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560616152] [2022-11-16 11:28:54,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:28:54,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:28:54,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:28:56,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:28:56,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:28:56,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560616152] [2022-11-16 11:28:56,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560616152] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:28:56,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:28:56,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-11-16 11:28:56,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383207045] [2022-11-16 11:28:56,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:28:56,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 11:28:56,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:28:56,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 11:28:56,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:28:56,838 INFO L87 Difference]: Start difference. First operand 1338 states and 4442 transitions. Second operand has 18 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 17 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:59,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:28:59,104 INFO L93 Difference]: Finished difference Result 2689 states and 8294 transitions. [2022-11-16 11:28:59,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 11:28:59,105 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 17 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:28:59,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:28:59,110 INFO L225 Difference]: With dead ends: 2689 [2022-11-16 11:28:59,110 INFO L226 Difference]: Without dead ends: 2672 [2022-11-16 11:28:59,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=238, Invalid=632, Unknown=0, NotChecked=0, Total=870 [2022-11-16 11:28:59,111 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 509 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 1302 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 1330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:28:59,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [509 Valid, 34 Invalid, 1330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1302 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:28:59,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2672 states. [2022-11-16 11:28:59,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2672 to 1405. [2022-11-16 11:28:59,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1405 states, 1404 states have (on average 3.2927350427350426) internal successors, (4623), 1404 states have internal predecessors, (4623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:59,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1405 states to 1405 states and 4623 transitions. [2022-11-16 11:28:59,147 INFO L78 Accepts]: Start accepts. Automaton has 1405 states and 4623 transitions. Word has length 33 [2022-11-16 11:28:59,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:28:59,148 INFO L495 AbstractCegarLoop]: Abstraction has 1405 states and 4623 transitions. [2022-11-16 11:28:59,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 17 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:59,148 INFO L276 IsEmpty]: Start isEmpty. Operand 1405 states and 4623 transitions. [2022-11-16 11:28:59,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:28:59,151 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:28:59,151 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:28:59,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-11-16 11:28:59,152 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:28:59,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:28:59,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1690662469, now seen corresponding path program 56 times [2022-11-16 11:28:59,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:28:59,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397265623] [2022-11-16 11:28:59,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:28:59,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:28:59,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:00,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:29:00,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:29:00,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397265623] [2022-11-16 11:29:00,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397265623] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:29:00,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:29:00,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-16 11:29:00,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69046788] [2022-11-16 11:29:00,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:29:00,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-16 11:29:00,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:29:00,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-16 11:29:00,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-11-16 11:29:00,959 INFO L87 Difference]: Start difference. First operand 1405 states and 4623 transitions. Second operand has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:04,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:29:04,831 INFO L93 Difference]: Finished difference Result 4003 states and 11937 transitions. [2022-11-16 11:29:04,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-16 11:29:04,832 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:29:04,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:29:04,840 INFO L225 Difference]: With dead ends: 4003 [2022-11-16 11:29:04,840 INFO L226 Difference]: Without dead ends: 3973 [2022-11-16 11:29:04,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=492, Invalid=1148, Unknown=0, NotChecked=0, Total=1640 [2022-11-16 11:29:04,841 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 476 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 1904 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 1958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-16 11:29:04,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [476 Valid, 54 Invalid, 1958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1904 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-16 11:29:04,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3973 states. [2022-11-16 11:29:04,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3973 to 1401. [2022-11-16 11:29:04,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1401 states, 1400 states have (on average 3.2964285714285713) internal successors, (4615), 1400 states have internal predecessors, (4615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:04,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1401 states to 1401 states and 4615 transitions. [2022-11-16 11:29:04,885 INFO L78 Accepts]: Start accepts. Automaton has 1401 states and 4615 transitions. Word has length 33 [2022-11-16 11:29:04,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:29:04,886 INFO L495 AbstractCegarLoop]: Abstraction has 1401 states and 4615 transitions. [2022-11-16 11:29:04,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:04,886 INFO L276 IsEmpty]: Start isEmpty. Operand 1401 states and 4615 transitions. [2022-11-16 11:29:04,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:29:04,888 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:29:04,888 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:29:04,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-11-16 11:29:04,888 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:29:04,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:29:04,889 INFO L85 PathProgramCache]: Analyzing trace with hash 137311785, now seen corresponding path program 57 times [2022-11-16 11:29:04,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:29:04,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684991813] [2022-11-16 11:29:04,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:29:04,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:29:04,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:06,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:29:06,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:29:06,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684991813] [2022-11-16 11:29:06,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684991813] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:29:06,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:29:06,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:29:06,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085158353] [2022-11-16 11:29:06,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:29:06,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:29:06,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:29:06,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:29:06,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:29:06,348 INFO L87 Difference]: Start difference. First operand 1401 states and 4615 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:08,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:29:08,336 INFO L93 Difference]: Finished difference Result 2576 states and 7741 transitions. [2022-11-16 11:29:08,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:29:08,336 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:29:08,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:29:08,341 INFO L225 Difference]: With dead ends: 2576 [2022-11-16 11:29:08,341 INFO L226 Difference]: Without dead ends: 2563 [2022-11-16 11:29:08,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=163, Invalid=343, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:29:08,342 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 251 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1237 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 1267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:29:08,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 46 Invalid, 1267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1237 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:29:08,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2563 states. [2022-11-16 11:29:08,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2563 to 1405. [2022-11-16 11:29:08,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1405 states, 1404 states have (on average 3.2927350427350426) internal successors, (4623), 1404 states have internal predecessors, (4623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:08,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1405 states to 1405 states and 4623 transitions. [2022-11-16 11:29:08,375 INFO L78 Accepts]: Start accepts. Automaton has 1405 states and 4623 transitions. Word has length 33 [2022-11-16 11:29:08,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:29:08,375 INFO L495 AbstractCegarLoop]: Abstraction has 1405 states and 4623 transitions. [2022-11-16 11:29:08,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:08,375 INFO L276 IsEmpty]: Start isEmpty. Operand 1405 states and 4623 transitions. [2022-11-16 11:29:08,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:29:08,377 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:29:08,377 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:29:08,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-11-16 11:29:08,378 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:29:08,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:29:08,378 INFO L85 PathProgramCache]: Analyzing trace with hash 73864659, now seen corresponding path program 58 times [2022-11-16 11:29:08,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:29:08,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080541997] [2022-11-16 11:29:08,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:29:08,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:29:08,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:10,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:29:10,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:29:10,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080541997] [2022-11-16 11:29:10,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080541997] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:29:10,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:29:10,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:29:10,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328479233] [2022-11-16 11:29:10,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:29:10,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:29:10,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:29:10,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:29:10,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:29:10,013 INFO L87 Difference]: Start difference. First operand 1405 states and 4623 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:12,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:29:12,037 INFO L93 Difference]: Finished difference Result 2590 states and 7757 transitions. [2022-11-16 11:29:12,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:29:12,038 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:29:12,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:29:12,042 INFO L225 Difference]: With dead ends: 2590 [2022-11-16 11:29:12,042 INFO L226 Difference]: Without dead ends: 2579 [2022-11-16 11:29:12,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=163, Invalid=343, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:29:12,043 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 282 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 1255 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 1284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:29:12,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 49 Invalid, 1284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1255 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:29:12,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2579 states. [2022-11-16 11:29:12,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2579 to 1407. [2022-11-16 11:29:12,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1407 states, 1406 states have (on average 3.2901849217638692) internal successors, (4626), 1406 states have internal predecessors, (4626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:12,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1407 states to 1407 states and 4626 transitions. [2022-11-16 11:29:12,069 INFO L78 Accepts]: Start accepts. Automaton has 1407 states and 4626 transitions. Word has length 33 [2022-11-16 11:29:12,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:29:12,070 INFO L495 AbstractCegarLoop]: Abstraction has 1407 states and 4626 transitions. [2022-11-16 11:29:12,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:12,070 INFO L276 IsEmpty]: Start isEmpty. Operand 1407 states and 4626 transitions. [2022-11-16 11:29:12,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:29:12,072 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:29:12,072 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:29:12,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-11-16 11:29:12,073 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:29:12,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:29:12,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1009723825, now seen corresponding path program 59 times [2022-11-16 11:29:12,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:29:12,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444144838] [2022-11-16 11:29:12,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:29:12,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:29:12,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:13,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:29:13,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:29:13,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444144838] [2022-11-16 11:29:13,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444144838] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:29:13,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:29:13,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:29:13,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724681628] [2022-11-16 11:29:13,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:29:13,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:29:13,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:29:13,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:29:13,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:29:13,397 INFO L87 Difference]: Start difference. First operand 1407 states and 4626 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:15,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:29:15,398 INFO L93 Difference]: Finished difference Result 2578 states and 7743 transitions. [2022-11-16 11:29:15,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:29:15,398 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:29:15,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:29:15,403 INFO L225 Difference]: With dead ends: 2578 [2022-11-16 11:29:15,403 INFO L226 Difference]: Without dead ends: 2561 [2022-11-16 11:29:15,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=163, Invalid=343, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:29:15,403 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 272 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 1246 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 1274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:29:15,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 36 Invalid, 1274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1246 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:29:15,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2022-11-16 11:29:15,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1403. [2022-11-16 11:29:15,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1403 states, 1402 states have (on average 3.2938659058487874) internal successors, (4618), 1402 states have internal predecessors, (4618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:15,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1403 states to 1403 states and 4618 transitions. [2022-11-16 11:29:15,446 INFO L78 Accepts]: Start accepts. Automaton has 1403 states and 4618 transitions. Word has length 33 [2022-11-16 11:29:15,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:29:15,446 INFO L495 AbstractCegarLoop]: Abstraction has 1403 states and 4618 transitions. [2022-11-16 11:29:15,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:15,447 INFO L276 IsEmpty]: Start isEmpty. Operand 1403 states and 4618 transitions. [2022-11-16 11:29:15,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:29:15,450 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:29:15,450 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:29:15,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-11-16 11:29:15,450 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:29:15,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:29:15,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1536586183, now seen corresponding path program 60 times [2022-11-16 11:29:15,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:29:15,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546984082] [2022-11-16 11:29:15,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:29:15,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:29:15,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:16,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:29:16,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:29:16,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546984082] [2022-11-16 11:29:16,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546984082] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:29:16,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:29:16,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:29:16,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127181355] [2022-11-16 11:29:16,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:29:16,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:29:16,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:29:16,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:29:16,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:29:16,755 INFO L87 Difference]: Start difference. First operand 1403 states and 4618 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:18,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:29:18,620 INFO L93 Difference]: Finished difference Result 2576 states and 7740 transitions. [2022-11-16 11:29:18,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:29:18,620 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:29:18,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:29:18,625 INFO L225 Difference]: With dead ends: 2576 [2022-11-16 11:29:18,625 INFO L226 Difference]: Without dead ends: 2565 [2022-11-16 11:29:18,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=166, Invalid=340, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:29:18,626 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 273 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 1131 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 1159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:29:18,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 47 Invalid, 1159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1131 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-16 11:29:18,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2565 states. [2022-11-16 11:29:18,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2565 to 1407. [2022-11-16 11:29:18,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1407 states, 1406 states have (on average 3.2901849217638692) internal successors, (4626), 1406 states have internal predecessors, (4626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:18,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1407 states to 1407 states and 4626 transitions. [2022-11-16 11:29:18,668 INFO L78 Accepts]: Start accepts. Automaton has 1407 states and 4626 transitions. Word has length 33 [2022-11-16 11:29:18,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:29:18,669 INFO L495 AbstractCegarLoop]: Abstraction has 1407 states and 4626 transitions. [2022-11-16 11:29:18,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:18,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1407 states and 4626 transitions. [2022-11-16 11:29:18,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:29:18,672 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:29:18,672 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:29:18,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-11-16 11:29:18,672 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:29:18,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:29:18,673 INFO L85 PathProgramCache]: Analyzing trace with hash 452997699, now seen corresponding path program 61 times [2022-11-16 11:29:18,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:29:18,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526169469] [2022-11-16 11:29:18,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:29:18,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:29:18,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:20,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:29:20,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:29:20,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526169469] [2022-11-16 11:29:20,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526169469] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:29:20,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:29:20,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-16 11:29:20,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577848965] [2022-11-16 11:29:20,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:29:20,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-16 11:29:20,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:29:20,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-16 11:29:20,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-16 11:29:20,812 INFO L87 Difference]: Start difference. First operand 1407 states and 4626 transitions. Second operand has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:23,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:29:23,445 INFO L93 Difference]: Finished difference Result 2578 states and 7742 transitions. [2022-11-16 11:29:23,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:29:23,446 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:29:23,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:29:23,450 INFO L225 Difference]: With dead ends: 2578 [2022-11-16 11:29:23,451 INFO L226 Difference]: Without dead ends: 2563 [2022-11-16 11:29:23,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=220, Invalid=536, Unknown=0, NotChecked=0, Total=756 [2022-11-16 11:29:23,451 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 361 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 1580 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 1613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:29:23,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 52 Invalid, 1613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1580 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-16 11:29:23,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2563 states. [2022-11-16 11:29:23,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2563 to 1401. [2022-11-16 11:29:23,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1401 states, 1400 states have (on average 3.2964285714285713) internal successors, (4615), 1400 states have internal predecessors, (4615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:23,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1401 states to 1401 states and 4615 transitions. [2022-11-16 11:29:23,485 INFO L78 Accepts]: Start accepts. Automaton has 1401 states and 4615 transitions. Word has length 33 [2022-11-16 11:29:23,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:29:23,485 INFO L495 AbstractCegarLoop]: Abstraction has 1401 states and 4615 transitions. [2022-11-16 11:29:23,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:23,486 INFO L276 IsEmpty]: Start isEmpty. Operand 1401 states and 4615 transitions. [2022-11-16 11:29:23,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:29:23,489 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:29:23,489 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:29:23,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-11-16 11:29:23,489 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:29:23,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:29:23,490 INFO L85 PathProgramCache]: Analyzing trace with hash -53348567, now seen corresponding path program 62 times [2022-11-16 11:29:23,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:29:23,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642716883] [2022-11-16 11:29:23,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:29:23,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:29:23,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:24,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:29:24,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:29:24,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642716883] [2022-11-16 11:29:24,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642716883] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:29:24,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:29:24,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-16 11:29:24,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728999891] [2022-11-16 11:29:24,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:29:24,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 11:29:24,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:29:24,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 11:29:24,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:29:24,868 INFO L87 Difference]: Start difference. First operand 1401 states and 4615 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:26,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:29:26,901 INFO L93 Difference]: Finished difference Result 2562 states and 7721 transitions. [2022-11-16 11:29:26,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:29:26,902 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:29:26,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:29:26,906 INFO L225 Difference]: With dead ends: 2562 [2022-11-16 11:29:26,906 INFO L226 Difference]: Without dead ends: 2541 [2022-11-16 11:29:26,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=222, Invalid=534, Unknown=0, NotChecked=0, Total=756 [2022-11-16 11:29:26,907 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 333 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 1276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:29:26,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 32 Invalid, 1276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1243 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:29:26,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2541 states. [2022-11-16 11:29:26,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2541 to 1401. [2022-11-16 11:29:26,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1401 states, 1400 states have (on average 3.2935714285714286) internal successors, (4611), 1400 states have internal predecessors, (4611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:26,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1401 states to 1401 states and 4611 transitions. [2022-11-16 11:29:26,940 INFO L78 Accepts]: Start accepts. Automaton has 1401 states and 4611 transitions. Word has length 33 [2022-11-16 11:29:26,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:29:26,941 INFO L495 AbstractCegarLoop]: Abstraction has 1401 states and 4611 transitions. [2022-11-16 11:29:26,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:26,941 INFO L276 IsEmpty]: Start isEmpty. Operand 1401 states and 4611 transitions. [2022-11-16 11:29:26,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:29:26,943 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:29:26,943 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:29:26,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-11-16 11:29:26,943 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:29:26,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:29:26,944 INFO L85 PathProgramCache]: Analyzing trace with hash 105482577, now seen corresponding path program 63 times [2022-11-16 11:29:26,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:29:26,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318810387] [2022-11-16 11:29:26,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:29:26,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:29:27,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:28,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:29:28,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:29:28,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318810387] [2022-11-16 11:29:28,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318810387] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:29:28,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:29:28,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-16 11:29:28,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336331013] [2022-11-16 11:29:28,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:29:28,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 11:29:28,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:29:28,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 11:29:28,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:29:28,691 INFO L87 Difference]: Start difference. First operand 1401 states and 4611 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:31,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:29:31,262 INFO L93 Difference]: Finished difference Result 2606 states and 7789 transitions. [2022-11-16 11:29:31,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 11:29:31,262 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:29:31,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:29:31,267 INFO L225 Difference]: With dead ends: 2606 [2022-11-16 11:29:31,267 INFO L226 Difference]: Without dead ends: 2595 [2022-11-16 11:29:31,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=276, Invalid=594, Unknown=0, NotChecked=0, Total=870 [2022-11-16 11:29:31,267 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 359 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 1504 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 1537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:29:31,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 73 Invalid, 1537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1504 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-16 11:29:31,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2595 states. [2022-11-16 11:29:31,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2595 to 1407. [2022-11-16 11:29:31,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1407 states, 1406 states have (on average 3.2916073968705546) internal successors, (4628), 1406 states have internal predecessors, (4628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:31,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1407 states to 1407 states and 4628 transitions. [2022-11-16 11:29:31,303 INFO L78 Accepts]: Start accepts. Automaton has 1407 states and 4628 transitions. Word has length 33 [2022-11-16 11:29:31,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:29:31,303 INFO L495 AbstractCegarLoop]: Abstraction has 1407 states and 4628 transitions. [2022-11-16 11:29:31,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:31,304 INFO L276 IsEmpty]: Start isEmpty. Operand 1407 states and 4628 transitions. [2022-11-16 11:29:31,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:29:31,306 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:29:31,306 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:29:31,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-11-16 11:29:31,307 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:29:31,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:29:31,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1711171983, now seen corresponding path program 64 times [2022-11-16 11:29:31,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:29:31,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590476522] [2022-11-16 11:29:31,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:29:31,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:29:31,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:32,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:29:32,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:29:32,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590476522] [2022-11-16 11:29:32,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590476522] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:29:32,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:29:32,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:29:32,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757428110] [2022-11-16 11:29:32,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:29:32,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:29:32,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:29:32,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:29:32,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:29:32,576 INFO L87 Difference]: Start difference. First operand 1407 states and 4628 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:34,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:29:34,593 INFO L93 Difference]: Finished difference Result 2610 states and 7796 transitions. [2022-11-16 11:29:34,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:29:34,594 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:29:34,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:29:34,599 INFO L225 Difference]: With dead ends: 2610 [2022-11-16 11:29:34,599 INFO L226 Difference]: Without dead ends: 2591 [2022-11-16 11:29:34,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=197, Invalid=403, Unknown=0, NotChecked=0, Total=600 [2022-11-16 11:29:34,599 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 297 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 1288 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 1317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:29:34,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 60 Invalid, 1317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1288 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:29:34,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2591 states. [2022-11-16 11:29:34,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2591 to 1405. [2022-11-16 11:29:34,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1405 states, 1404 states have (on average 3.2927350427350426) internal successors, (4623), 1404 states have internal predecessors, (4623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:34,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1405 states to 1405 states and 4623 transitions. [2022-11-16 11:29:34,625 INFO L78 Accepts]: Start accepts. Automaton has 1405 states and 4623 transitions. Word has length 33 [2022-11-16 11:29:34,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:29:34,625 INFO L495 AbstractCegarLoop]: Abstraction has 1405 states and 4623 transitions. [2022-11-16 11:29:34,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:34,626 INFO L276 IsEmpty]: Start isEmpty. Operand 1405 states and 4623 transitions. [2022-11-16 11:29:34,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:29:34,627 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:29:34,628 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:29:34,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-11-16 11:29:34,628 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:29:34,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:29:34,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1657753389, now seen corresponding path program 65 times [2022-11-16 11:29:34,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:29:34,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184248766] [2022-11-16 11:29:34,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:29:34,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:29:34,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:35,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:29:35,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:29:35,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184248766] [2022-11-16 11:29:35,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184248766] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:29:35,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:29:35,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:29:35,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444483752] [2022-11-16 11:29:35,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:29:35,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:29:35,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:29:35,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:29:35,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:29:35,953 INFO L87 Difference]: Start difference. First operand 1405 states and 4623 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:38,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:29:38,039 INFO L93 Difference]: Finished difference Result 2618 states and 7800 transitions. [2022-11-16 11:29:38,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:29:38,040 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:29:38,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:29:38,044 INFO L225 Difference]: With dead ends: 2618 [2022-11-16 11:29:38,045 INFO L226 Difference]: Without dead ends: 2607 [2022-11-16 11:29:38,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=178, Invalid=374, Unknown=0, NotChecked=0, Total=552 [2022-11-16 11:29:38,045 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 265 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 1401 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 1431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:29:38,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 57 Invalid, 1431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1401 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:29:38,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2607 states. [2022-11-16 11:29:38,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2607 to 1407. [2022-11-16 11:29:38,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1407 states, 1406 states have (on average 3.2901849217638692) internal successors, (4626), 1406 states have internal predecessors, (4626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:38,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1407 states to 1407 states and 4626 transitions. [2022-11-16 11:29:38,078 INFO L78 Accepts]: Start accepts. Automaton has 1407 states and 4626 transitions. Word has length 33 [2022-11-16 11:29:38,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:29:38,078 INFO L495 AbstractCegarLoop]: Abstraction has 1407 states and 4626 transitions. [2022-11-16 11:29:38,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:38,078 INFO L276 IsEmpty]: Start isEmpty. Operand 1407 states and 4626 transitions. [2022-11-16 11:29:38,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:29:38,080 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:29:38,080 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:29:38,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-11-16 11:29:38,080 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:29:38,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:29:38,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1553625423, now seen corresponding path program 66 times [2022-11-16 11:29:38,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:29:38,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180211524] [2022-11-16 11:29:38,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:29:38,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:29:38,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:40,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:29:40,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:29:40,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180211524] [2022-11-16 11:29:40,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180211524] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:29:40,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:29:40,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-16 11:29:40,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772670564] [2022-11-16 11:29:40,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:29:40,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-16 11:29:40,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:29:40,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-16 11:29:40,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-11-16 11:29:40,051 INFO L87 Difference]: Start difference. First operand 1407 states and 4626 transitions. Second operand has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:42,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:29:42,857 INFO L93 Difference]: Finished difference Result 2610 states and 7793 transitions. [2022-11-16 11:29:42,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 11:29:42,857 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:29:42,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:29:42,862 INFO L225 Difference]: With dead ends: 2610 [2022-11-16 11:29:42,862 INFO L226 Difference]: Without dead ends: 2595 [2022-11-16 11:29:42,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=243, Invalid=627, Unknown=0, NotChecked=0, Total=870 [2022-11-16 11:29:42,863 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 352 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 1576 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 1607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:29:42,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 39 Invalid, 1607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1576 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-16 11:29:42,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2595 states. [2022-11-16 11:29:42,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2595 to 1405. [2022-11-16 11:29:42,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1405 states, 1404 states have (on average 3.2913105413105415) internal successors, (4621), 1404 states have internal predecessors, (4621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:42,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1405 states to 1405 states and 4621 transitions. [2022-11-16 11:29:42,907 INFO L78 Accepts]: Start accepts. Automaton has 1405 states and 4621 transitions. Word has length 33 [2022-11-16 11:29:42,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:29:42,907 INFO L495 AbstractCegarLoop]: Abstraction has 1405 states and 4621 transitions. [2022-11-16 11:29:42,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:42,907 INFO L276 IsEmpty]: Start isEmpty. Operand 1405 states and 4621 transitions. [2022-11-16 11:29:42,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:29:42,911 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:29:42,911 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:29:42,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-11-16 11:29:42,911 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:29:42,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:29:42,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1815299949, now seen corresponding path program 67 times [2022-11-16 11:29:42,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:29:42,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088484171] [2022-11-16 11:29:42,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:29:42,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:29:42,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:44,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:29:44,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:29:44,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088484171] [2022-11-16 11:29:44,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088484171] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:29:44,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:29:44,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:29:44,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748122508] [2022-11-16 11:29:44,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:29:44,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:29:44,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:29:44,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:29:44,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:29:44,236 INFO L87 Difference]: Start difference. First operand 1405 states and 4621 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:46,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:29:46,291 INFO L93 Difference]: Finished difference Result 2626 states and 7816 transitions. [2022-11-16 11:29:46,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:29:46,292 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:29:46,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:29:46,296 INFO L225 Difference]: With dead ends: 2626 [2022-11-16 11:29:46,297 INFO L226 Difference]: Without dead ends: 2609 [2022-11-16 11:29:46,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=179, Invalid=373, Unknown=0, NotChecked=0, Total=552 [2022-11-16 11:29:46,297 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 292 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 1316 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 1346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:29:46,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 56 Invalid, 1346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1316 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:29:46,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2609 states. [2022-11-16 11:29:46,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2609 to 1409. [2022-11-16 11:29:46,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1409 states, 1408 states have (on average 3.2869318181818183) internal successors, (4628), 1408 states have internal predecessors, (4628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:46,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1409 states to 1409 states and 4628 transitions. [2022-11-16 11:29:46,325 INFO L78 Accepts]: Start accepts. Automaton has 1409 states and 4628 transitions. Word has length 33 [2022-11-16 11:29:46,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:29:46,325 INFO L495 AbstractCegarLoop]: Abstraction has 1409 states and 4628 transitions. [2022-11-16 11:29:46,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:46,326 INFO L276 IsEmpty]: Start isEmpty. Operand 1409 states and 4628 transitions. [2022-11-16 11:29:46,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:29:46,328 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:29:46,328 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:29:46,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-11-16 11:29:46,328 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:29:46,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:29:46,329 INFO L85 PathProgramCache]: Analyzing trace with hash -209610543, now seen corresponding path program 68 times [2022-11-16 11:29:46,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:29:46,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49656525] [2022-11-16 11:29:46,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:29:46,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:29:46,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:48,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:29:48,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:29:48,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49656525] [2022-11-16 11:29:48,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49656525] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:29:48,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:29:48,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-16 11:29:48,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220109388] [2022-11-16 11:29:48,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:29:48,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 11:29:48,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:29:48,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 11:29:48,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:29:48,158 INFO L87 Difference]: Start difference. First operand 1409 states and 4628 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:50,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:29:50,604 INFO L93 Difference]: Finished difference Result 2612 states and 7795 transitions. [2022-11-16 11:29:50,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:29:50,604 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:29:50,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:29:50,609 INFO L225 Difference]: With dead ends: 2612 [2022-11-16 11:29:50,609 INFO L226 Difference]: Without dead ends: 2593 [2022-11-16 11:29:50,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=233, Invalid=523, Unknown=0, NotChecked=0, Total=756 [2022-11-16 11:29:50,610 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 357 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 1480 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 1512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:29:50,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 61 Invalid, 1512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1480 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:29:50,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2593 states. [2022-11-16 11:29:50,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2593 to 1403. [2022-11-16 11:29:50,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1403 states, 1402 states have (on average 3.2924393723252496) internal successors, (4616), 1402 states have internal predecessors, (4616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:50,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1403 states to 1403 states and 4616 transitions. [2022-11-16 11:29:50,646 INFO L78 Accepts]: Start accepts. Automaton has 1403 states and 4616 transitions. Word has length 33 [2022-11-16 11:29:50,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:29:50,646 INFO L495 AbstractCegarLoop]: Abstraction has 1403 states and 4616 transitions. [2022-11-16 11:29:50,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:50,647 INFO L276 IsEmpty]: Start isEmpty. Operand 1403 states and 4616 transitions. [2022-11-16 11:29:50,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:29:50,649 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:29:50,649 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:29:50,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-11-16 11:29:50,649 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:29:50,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:29:50,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1348878353, now seen corresponding path program 69 times [2022-11-16 11:29:50,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:29:50,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181293573] [2022-11-16 11:29:50,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:29:50,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:29:50,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:51,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:29:51,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:29:51,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181293573] [2022-11-16 11:29:51,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181293573] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:29:51,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:29:51,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:29:51,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891684528] [2022-11-16 11:29:51,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:29:51,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:29:51,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:29:51,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:29:51,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:29:51,828 INFO L87 Difference]: Start difference. First operand 1403 states and 4616 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:53,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:29:53,963 INFO L93 Difference]: Finished difference Result 2608 states and 7784 transitions. [2022-11-16 11:29:53,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 11:29:53,963 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:29:53,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:29:53,968 INFO L225 Difference]: With dead ends: 2608 [2022-11-16 11:29:53,968 INFO L226 Difference]: Without dead ends: 2597 [2022-11-16 11:29:53,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=217, Invalid=433, Unknown=0, NotChecked=0, Total=650 [2022-11-16 11:29:53,969 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 310 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 1142 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 1175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:29:53,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 51 Invalid, 1175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1142 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:29:53,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2597 states. [2022-11-16 11:29:53,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2597 to 1407. [2022-11-16 11:29:53,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1407 states, 1406 states have (on average 3.2887624466571834) internal successors, (4624), 1406 states have internal predecessors, (4624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:54,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1407 states to 1407 states and 4624 transitions. [2022-11-16 11:29:54,002 INFO L78 Accepts]: Start accepts. Automaton has 1407 states and 4624 transitions. Word has length 33 [2022-11-16 11:29:54,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:29:54,002 INFO L495 AbstractCegarLoop]: Abstraction has 1407 states and 4624 transitions. [2022-11-16 11:29:54,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:54,002 INFO L276 IsEmpty]: Start isEmpty. Operand 1407 states and 4624 transitions. [2022-11-16 11:29:54,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:29:54,004 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:29:54,004 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:29:54,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-11-16 11:29:54,004 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:29:54,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:29:54,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1862500459, now seen corresponding path program 70 times [2022-11-16 11:29:54,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:29:54,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351329280] [2022-11-16 11:29:54,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:29:54,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:29:54,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:56,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:29:56,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:29:56,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351329280] [2022-11-16 11:29:56,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351329280] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:29:56,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:29:56,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-11-16 11:29:56,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967086538] [2022-11-16 11:29:56,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:29:56,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 11:29:56,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:29:56,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 11:29:56,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:29:56,218 INFO L87 Difference]: Start difference. First operand 1407 states and 4624 transitions. Second operand has 18 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 17 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:58,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:29:58,866 INFO L93 Difference]: Finished difference Result 2880 states and 8837 transitions. [2022-11-16 11:29:58,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 11:29:58,866 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 17 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:29:58,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:29:58,872 INFO L225 Difference]: With dead ends: 2880 [2022-11-16 11:29:58,872 INFO L226 Difference]: Without dead ends: 2865 [2022-11-16 11:29:58,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=279, Invalid=651, Unknown=0, NotChecked=0, Total=930 [2022-11-16 11:29:58,872 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 378 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 1518 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 1557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:29:58,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 69 Invalid, 1557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1518 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-16 11:29:58,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2865 states. [2022-11-16 11:29:58,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2865 to 1415. [2022-11-16 11:29:58,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1415 states, 1414 states have (on average 3.2814710042432815) internal successors, (4640), 1414 states have internal predecessors, (4640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:58,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1415 states to 1415 states and 4640 transitions. [2022-11-16 11:29:58,904 INFO L78 Accepts]: Start accepts. Automaton has 1415 states and 4640 transitions. Word has length 33 [2022-11-16 11:29:58,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:29:58,905 INFO L495 AbstractCegarLoop]: Abstraction has 1415 states and 4640 transitions. [2022-11-16 11:29:58,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 17 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:58,905 INFO L276 IsEmpty]: Start isEmpty. Operand 1415 states and 4640 transitions. [2022-11-16 11:29:58,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:29:58,909 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:29:58,909 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:29:58,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-11-16 11:29:58,909 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:29:58,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:29:58,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1356154193, now seen corresponding path program 71 times [2022-11-16 11:29:58,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:29:58,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055663992] [2022-11-16 11:29:58,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:29:58,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:29:58,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:00,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:00,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:00,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055663992] [2022-11-16 11:30:00,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055663992] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:00,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:00,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:30:00,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813202188] [2022-11-16 11:30:00,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:00,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:30:00,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:00,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:30:00,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:30:00,148 INFO L87 Difference]: Start difference. First operand 1415 states and 4640 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:02,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:02,293 INFO L93 Difference]: Finished difference Result 2622 states and 7809 transitions. [2022-11-16 11:30:02,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:30:02,294 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:30:02,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:02,298 INFO L225 Difference]: With dead ends: 2622 [2022-11-16 11:30:02,298 INFO L226 Difference]: Without dead ends: 2603 [2022-11-16 11:30:02,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=201, Invalid=399, Unknown=0, NotChecked=0, Total=600 [2022-11-16 11:30:02,299 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 239 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 1283 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 1315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:02,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 54 Invalid, 1315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1283 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:30:02,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2603 states. [2022-11-16 11:30:02,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2603 to 1415. [2022-11-16 11:30:02,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1415 states, 1414 states have (on average 3.278642149929279) internal successors, (4636), 1414 states have internal predecessors, (4636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:02,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1415 states to 1415 states and 4636 transitions. [2022-11-16 11:30:02,325 INFO L78 Accepts]: Start accepts. Automaton has 1415 states and 4636 transitions. Word has length 33 [2022-11-16 11:30:02,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:02,325 INFO L495 AbstractCegarLoop]: Abstraction has 1415 states and 4636 transitions. [2022-11-16 11:30:02,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:02,325 INFO L276 IsEmpty]: Start isEmpty. Operand 1415 states and 4636 transitions. [2022-11-16 11:30:02,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:30:02,327 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:02,327 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:02,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-11-16 11:30:02,327 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:30:02,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:02,328 INFO L85 PathProgramCache]: Analyzing trace with hash -332165011, now seen corresponding path program 72 times [2022-11-16 11:30:02,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:02,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254580257] [2022-11-16 11:30:02,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:02,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:02,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:04,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:04,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:04,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254580257] [2022-11-16 11:30:04,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254580257] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:04,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:04,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-16 11:30:04,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597417767] [2022-11-16 11:30:04,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:04,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-16 11:30:04,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:04,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-16 11:30:04,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-11-16 11:30:04,335 INFO L87 Difference]: Start difference. First operand 1415 states and 4636 transitions. Second operand has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:06,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:06,911 INFO L93 Difference]: Finished difference Result 2598 states and 7774 transitions. [2022-11-16 11:30:06,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:30:06,911 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:30:06,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:06,916 INFO L225 Difference]: With dead ends: 2598 [2022-11-16 11:30:06,916 INFO L226 Difference]: Without dead ends: 2581 [2022-11-16 11:30:06,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=237, Invalid=575, Unknown=0, NotChecked=0, Total=812 [2022-11-16 11:30:06,917 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 331 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 1374 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 1409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:06,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 60 Invalid, 1409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1374 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:30:06,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2581 states. [2022-11-16 11:30:06,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2581 to 1423. [2022-11-16 11:30:06,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1423 states, 1422 states have (on average 3.272855133614627) internal successors, (4654), 1422 states have internal predecessors, (4654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:06,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1423 states to 1423 states and 4654 transitions. [2022-11-16 11:30:06,950 INFO L78 Accepts]: Start accepts. Automaton has 1423 states and 4654 transitions. Word has length 33 [2022-11-16 11:30:06,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:06,950 INFO L495 AbstractCegarLoop]: Abstraction has 1423 states and 4654 transitions. [2022-11-16 11:30:06,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:06,950 INFO L276 IsEmpty]: Start isEmpty. Operand 1423 states and 4654 transitions. [2022-11-16 11:30:06,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:30:06,952 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:06,952 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:06,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-11-16 11:30:06,952 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:30:06,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:06,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1273524395, now seen corresponding path program 73 times [2022-11-16 11:30:06,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:06,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075294313] [2022-11-16 11:30:06,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:06,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:07,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:08,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:08,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:08,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075294313] [2022-11-16 11:30:08,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075294313] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:08,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:08,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:30:08,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860923118] [2022-11-16 11:30:08,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:08,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:30:08,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:08,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:30:08,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:30:08,366 INFO L87 Difference]: Start difference. First operand 1423 states and 4654 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:10,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:10,486 INFO L93 Difference]: Finished difference Result 2594 states and 7762 transitions. [2022-11-16 11:30:10,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:30:10,486 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:30:10,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:10,490 INFO L225 Difference]: With dead ends: 2594 [2022-11-16 11:30:10,490 INFO L226 Difference]: Without dead ends: 2577 [2022-11-16 11:30:10,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=179, Invalid=373, Unknown=0, NotChecked=0, Total=552 [2022-11-16 11:30:10,491 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 222 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1416 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 1443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:10,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 53 Invalid, 1443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1416 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:30:10,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2577 states. [2022-11-16 11:30:10,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2577 to 1419. [2022-11-16 11:30:10,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1419 states, 1418 states have (on average 3.274330042313117) internal successors, (4643), 1418 states have internal predecessors, (4643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:10,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1419 states to 1419 states and 4643 transitions. [2022-11-16 11:30:10,516 INFO L78 Accepts]: Start accepts. Automaton has 1419 states and 4643 transitions. Word has length 33 [2022-11-16 11:30:10,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:10,516 INFO L495 AbstractCegarLoop]: Abstraction has 1419 states and 4643 transitions. [2022-11-16 11:30:10,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:10,517 INFO L276 IsEmpty]: Start isEmpty. Operand 1419 states and 4643 transitions. [2022-11-16 11:30:10,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:30:10,518 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:10,518 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:10,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-11-16 11:30:10,519 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:30:10,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:10,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1764553201, now seen corresponding path program 74 times [2022-11-16 11:30:10,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:10,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067609799] [2022-11-16 11:30:10,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:10,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:10,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:11,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:11,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:11,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067609799] [2022-11-16 11:30:11,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067609799] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:11,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:11,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:30:11,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841201841] [2022-11-16 11:30:11,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:11,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:30:11,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:11,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:30:11,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:30:11,818 INFO L87 Difference]: Start difference. First operand 1419 states and 4643 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:14,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:14,082 INFO L93 Difference]: Finished difference Result 2590 states and 7751 transitions. [2022-11-16 11:30:14,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:30:14,083 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:30:14,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:14,088 INFO L225 Difference]: With dead ends: 2590 [2022-11-16 11:30:14,088 INFO L226 Difference]: Without dead ends: 2561 [2022-11-16 11:30:14,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=181, Invalid=371, Unknown=0, NotChecked=0, Total=552 [2022-11-16 11:30:14,089 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 219 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 1289 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 1317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:14,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 47 Invalid, 1317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1289 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:30:14,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2022-11-16 11:30:14,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 1407. [2022-11-16 11:30:14,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1407 states, 1406 states have (on average 3.283072546230441) internal successors, (4616), 1406 states have internal predecessors, (4616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:14,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1407 states to 1407 states and 4616 transitions. [2022-11-16 11:30:14,119 INFO L78 Accepts]: Start accepts. Automaton has 1407 states and 4616 transitions. Word has length 33 [2022-11-16 11:30:14,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:14,119 INFO L495 AbstractCegarLoop]: Abstraction has 1407 states and 4616 transitions. [2022-11-16 11:30:14,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:14,120 INFO L276 IsEmpty]: Start isEmpty. Operand 1407 states and 4616 transitions. [2022-11-16 11:30:14,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:30:14,122 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:14,123 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:14,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-11-16 11:30:14,123 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:30:14,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:14,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1368424113, now seen corresponding path program 75 times [2022-11-16 11:30:14,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:14,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614970461] [2022-11-16 11:30:14,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:14,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:14,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:15,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:15,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:15,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614970461] [2022-11-16 11:30:15,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614970461] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:15,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:15,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:30:15,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782795410] [2022-11-16 11:30:15,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:15,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:30:15,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:15,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:30:15,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:30:15,408 INFO L87 Difference]: Start difference. First operand 1407 states and 4616 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:17,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:17,702 INFO L93 Difference]: Finished difference Result 2626 states and 7899 transitions. [2022-11-16 11:30:17,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:30:17,702 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:30:17,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:17,707 INFO L225 Difference]: With dead ends: 2626 [2022-11-16 11:30:17,707 INFO L226 Difference]: Without dead ends: 2611 [2022-11-16 11:30:17,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=160, Invalid=346, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:30:17,707 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 242 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1384 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 1410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:17,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 49 Invalid, 1410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1384 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:30:17,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2611 states. [2022-11-16 11:30:17,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2611 to 1417. [2022-11-16 11:30:17,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1417 states, 1416 states have (on average 3.28319209039548) internal successors, (4649), 1416 states have internal predecessors, (4649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:17,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1417 states to 1417 states and 4649 transitions. [2022-11-16 11:30:17,735 INFO L78 Accepts]: Start accepts. Automaton has 1417 states and 4649 transitions. Word has length 33 [2022-11-16 11:30:17,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:17,735 INFO L495 AbstractCegarLoop]: Abstraction has 1417 states and 4649 transitions. [2022-11-16 11:30:17,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:17,735 INFO L276 IsEmpty]: Start isEmpty. Operand 1417 states and 4649 transitions. [2022-11-16 11:30:17,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:30:17,737 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:17,738 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:17,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-11-16 11:30:17,738 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:30:17,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:17,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1323479553, now seen corresponding path program 76 times [2022-11-16 11:30:17,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:17,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958080789] [2022-11-16 11:30:17,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:17,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:17,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:21,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:21,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:21,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958080789] [2022-11-16 11:30:21,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958080789] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:21,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:21,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 11:30:21,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858498741] [2022-11-16 11:30:21,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:21,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-16 11:30:21,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:21,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-16 11:30:21,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2022-11-16 11:30:21,277 INFO L87 Difference]: Start difference. First operand 1417 states and 4649 transitions. Second operand has 19 states, 18 states have (on average 1.8333333333333333) internal successors, (33), 18 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:24,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:24,655 INFO L93 Difference]: Finished difference Result 2706 states and 8427 transitions. [2022-11-16 11:30:24,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:30:24,656 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 1.8333333333333333) internal successors, (33), 18 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:30:24,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:24,661 INFO L225 Difference]: With dead ends: 2706 [2022-11-16 11:30:24,662 INFO L226 Difference]: Without dead ends: 2693 [2022-11-16 11:30:24,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=237, Invalid=633, Unknown=0, NotChecked=0, Total=870 [2022-11-16 11:30:24,662 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 353 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 1536 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 1560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:24,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 59 Invalid, 1560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1536 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-16 11:30:24,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2693 states. [2022-11-16 11:30:24,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2693 to 1425. [2022-11-16 11:30:24,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1425 states, 1424 states have (on average 3.2844101123595504) internal successors, (4677), 1424 states have internal predecessors, (4677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:24,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 4677 transitions. [2022-11-16 11:30:24,694 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 4677 transitions. Word has length 33 [2022-11-16 11:30:24,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:24,694 INFO L495 AbstractCegarLoop]: Abstraction has 1425 states and 4677 transitions. [2022-11-16 11:30:24,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 1.8333333333333333) internal successors, (33), 18 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:24,695 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 4677 transitions. [2022-11-16 11:30:24,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:30:24,698 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:24,698 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:24,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-11-16 11:30:24,698 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:30:24,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:24,699 INFO L85 PathProgramCache]: Analyzing trace with hash -294910231, now seen corresponding path program 77 times [2022-11-16 11:30:24,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:24,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731552918] [2022-11-16 11:30:24,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:24,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:24,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:26,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:26,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:26,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731552918] [2022-11-16 11:30:26,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731552918] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:26,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:26,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:30:26,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839953920] [2022-11-16 11:30:26,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:26,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:30:26,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:26,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:30:26,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:30:26,087 INFO L87 Difference]: Start difference. First operand 1425 states and 4677 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:28,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:28,228 INFO L93 Difference]: Finished difference Result 2632 states and 7920 transitions. [2022-11-16 11:30:28,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:30:28,228 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:30:28,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:28,233 INFO L225 Difference]: With dead ends: 2632 [2022-11-16 11:30:28,233 INFO L226 Difference]: Without dead ends: 2617 [2022-11-16 11:30:28,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=160, Invalid=346, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:30:28,234 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 258 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 1345 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 1373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:28,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 29 Invalid, 1373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1345 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:30:28,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2617 states. [2022-11-16 11:30:28,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2617 to 1423. [2022-11-16 11:30:28,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1423 states, 1422 states have (on average 3.2841068917018283) internal successors, (4670), 1422 states have internal predecessors, (4670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:28,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1423 states to 1423 states and 4670 transitions. [2022-11-16 11:30:28,269 INFO L78 Accepts]: Start accepts. Automaton has 1423 states and 4670 transitions. Word has length 33 [2022-11-16 11:30:28,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:28,269 INFO L495 AbstractCegarLoop]: Abstraction has 1423 states and 4670 transitions. [2022-11-16 11:30:28,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:28,270 INFO L276 IsEmpty]: Start isEmpty. Operand 1423 states and 4670 transitions. [2022-11-16 11:30:28,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:30:28,272 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:28,272 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:28,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-11-16 11:30:28,272 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:30:28,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:28,272 INFO L85 PathProgramCache]: Analyzing trace with hash -214577625, now seen corresponding path program 78 times [2022-11-16 11:30:28,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:28,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824991348] [2022-11-16 11:30:28,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:28,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:28,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:29,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:29,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:29,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824991348] [2022-11-16 11:30:29,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824991348] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:29,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:29,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:30:29,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816895462] [2022-11-16 11:30:29,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:29,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:30:29,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:29,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:30:29,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:30:29,611 INFO L87 Difference]: Start difference. First operand 1423 states and 4670 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:31,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:31,648 INFO L93 Difference]: Finished difference Result 2666 states and 7984 transitions. [2022-11-16 11:30:31,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:30:31,649 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:30:31,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:31,653 INFO L225 Difference]: With dead ends: 2666 [2022-11-16 11:30:31,653 INFO L226 Difference]: Without dead ends: 2651 [2022-11-16 11:30:31,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=161, Invalid=345, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:30:31,654 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 282 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1278 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 1303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:31,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 45 Invalid, 1303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1278 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:30:31,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2651 states. [2022-11-16 11:30:31,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2651 to 1425. [2022-11-16 11:30:31,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1425 states, 1424 states have (on average 3.2844101123595504) internal successors, (4677), 1424 states have internal predecessors, (4677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:31,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 4677 transitions. [2022-11-16 11:30:31,687 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 4677 transitions. Word has length 33 [2022-11-16 11:30:31,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:31,688 INFO L495 AbstractCegarLoop]: Abstraction has 1425 states and 4677 transitions. [2022-11-16 11:30:31,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:31,688 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 4677 transitions. [2022-11-16 11:30:31,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:30:31,690 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:31,690 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:31,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-11-16 11:30:31,690 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:30:31,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:31,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1817641255, now seen corresponding path program 79 times [2022-11-16 11:30:31,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:31,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808801020] [2022-11-16 11:30:31,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:31,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:31,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:32,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:32,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:32,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808801020] [2022-11-16 11:30:32,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808801020] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:32,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:32,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:30:32,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251079506] [2022-11-16 11:30:32,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:32,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:30:32,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:32,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:30:32,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:30:32,997 INFO L87 Difference]: Start difference. First operand 1425 states and 4677 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:34,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:34,988 INFO L93 Difference]: Finished difference Result 2662 states and 7974 transitions. [2022-11-16 11:30:34,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:30:34,988 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:30:34,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:34,993 INFO L225 Difference]: With dead ends: 2662 [2022-11-16 11:30:34,993 INFO L226 Difference]: Without dead ends: 2649 [2022-11-16 11:30:34,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=161, Invalid=345, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:30:34,993 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 289 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 1311 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 1336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:34,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 50 Invalid, 1336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1311 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:30:34,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2649 states. [2022-11-16 11:30:35,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2649 to 1425. [2022-11-16 11:30:35,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1425 states, 1424 states have (on average 3.283005617977528) internal successors, (4675), 1424 states have internal predecessors, (4675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:35,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 4675 transitions. [2022-11-16 11:30:35,023 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 4675 transitions. Word has length 33 [2022-11-16 11:30:35,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:35,023 INFO L495 AbstractCegarLoop]: Abstraction has 1425 states and 4675 transitions. [2022-11-16 11:30:35,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:35,023 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 4675 transitions. [2022-11-16 11:30:35,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:30:35,025 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:35,025 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:35,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-11-16 11:30:35,026 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:30:35,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:35,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1977813591, now seen corresponding path program 80 times [2022-11-16 11:30:35,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:35,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716512011] [2022-11-16 11:30:35,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:35,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:35,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:36,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:36,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:36,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716512011] [2022-11-16 11:30:36,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716512011] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:36,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:36,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:30:36,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456603683] [2022-11-16 11:30:36,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:36,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:30:36,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:36,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:30:36,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:30:36,280 INFO L87 Difference]: Start difference. First operand 1425 states and 4675 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:38,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:38,282 INFO L93 Difference]: Finished difference Result 2646 states and 7954 transitions. [2022-11-16 11:30:38,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:30:38,283 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:30:38,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:38,287 INFO L225 Difference]: With dead ends: 2646 [2022-11-16 11:30:38,288 INFO L226 Difference]: Without dead ends: 2631 [2022-11-16 11:30:38,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:30:38,288 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 294 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 1169 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 1195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:38,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 38 Invalid, 1195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1169 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:30:38,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2631 states. [2022-11-16 11:30:38,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2631 to 1431. [2022-11-16 11:30:38,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1431 states, 1430 states have (on average 3.276923076923077) internal successors, (4686), 1430 states have internal predecessors, (4686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:38,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1431 states to 1431 states and 4686 transitions. [2022-11-16 11:30:38,319 INFO L78 Accepts]: Start accepts. Automaton has 1431 states and 4686 transitions. Word has length 33 [2022-11-16 11:30:38,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:38,319 INFO L495 AbstractCegarLoop]: Abstraction has 1431 states and 4686 transitions. [2022-11-16 11:30:38,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:38,319 INFO L276 IsEmpty]: Start isEmpty. Operand 1431 states and 4686 transitions. [2022-11-16 11:30:38,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:30:38,322 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:38,323 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:38,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-11-16 11:30:38,323 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:30:38,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:38,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1975187815, now seen corresponding path program 81 times [2022-11-16 11:30:38,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:38,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749248919] [2022-11-16 11:30:38,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:38,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:38,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:39,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:39,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:39,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749248919] [2022-11-16 11:30:39,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749248919] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:39,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:39,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-16 11:30:39,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115796634] [2022-11-16 11:30:39,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:39,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 11:30:39,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:39,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 11:30:39,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:30:39,847 INFO L87 Difference]: Start difference. First operand 1431 states and 4686 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:42,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:42,052 INFO L93 Difference]: Finished difference Result 2648 states and 7952 transitions. [2022-11-16 11:30:42,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:30:42,053 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:30:42,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:42,058 INFO L225 Difference]: With dead ends: 2648 [2022-11-16 11:30:42,058 INFO L226 Difference]: Without dead ends: 2625 [2022-11-16 11:30:42,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=217, Invalid=539, Unknown=0, NotChecked=0, Total=756 [2022-11-16 11:30:42,059 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 310 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 1479 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 1506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:42,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 30 Invalid, 1506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1479 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:30:42,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2625 states. [2022-11-16 11:30:42,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2625 to 1425. [2022-11-16 11:30:42,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1425 states, 1424 states have (on average 3.2816011235955056) internal successors, (4673), 1424 states have internal predecessors, (4673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:42,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 4673 transitions. [2022-11-16 11:30:42,107 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 4673 transitions. Word has length 33 [2022-11-16 11:30:42,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:42,107 INFO L495 AbstractCegarLoop]: Abstraction has 1425 states and 4673 transitions. [2022-11-16 11:30:42,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:42,107 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 4673 transitions. [2022-11-16 11:30:42,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:30:42,109 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:42,109 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:42,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-11-16 11:30:42,109 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:30:42,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:42,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1736242199, now seen corresponding path program 82 times [2022-11-16 11:30:42,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:42,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665228773] [2022-11-16 11:30:42,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:42,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:42,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:43,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:43,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:43,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665228773] [2022-11-16 11:30:43,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665228773] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:43,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:43,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:30:43,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260507227] [2022-11-16 11:30:43,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:43,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:30:43,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:43,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:30:43,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:30:43,289 INFO L87 Difference]: Start difference. First operand 1425 states and 4673 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:45,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:45,162 INFO L93 Difference]: Finished difference Result 2658 states and 7959 transitions. [2022-11-16 11:30:45,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:30:45,163 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:30:45,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:45,167 INFO L225 Difference]: With dead ends: 2658 [2022-11-16 11:30:45,167 INFO L226 Difference]: Without dead ends: 2647 [2022-11-16 11:30:45,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:30:45,168 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 286 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 1276 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 1301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:45,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 54 Invalid, 1301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1276 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:30:45,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2647 states. [2022-11-16 11:30:45,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2647 to 1427. [2022-11-16 11:30:45,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1427 states, 1426 states have (on average 3.279102384291725) internal successors, (4676), 1426 states have internal predecessors, (4676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:45,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1427 states to 1427 states and 4676 transitions. [2022-11-16 11:30:45,195 INFO L78 Accepts]: Start accepts. Automaton has 1427 states and 4676 transitions. Word has length 33 [2022-11-16 11:30:45,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:45,196 INFO L495 AbstractCegarLoop]: Abstraction has 1427 states and 4676 transitions. [2022-11-16 11:30:45,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:45,196 INFO L276 IsEmpty]: Start isEmpty. Operand 1427 states and 4676 transitions. [2022-11-16 11:30:45,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:30:45,198 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:45,198 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:45,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-11-16 11:30:45,198 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:30:45,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:45,198 INFO L85 PathProgramCache]: Analyzing trace with hash -130552793, now seen corresponding path program 83 times [2022-11-16 11:30:45,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:45,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118035328] [2022-11-16 11:30:45,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:45,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:45,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:46,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:46,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:46,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118035328] [2022-11-16 11:30:46,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118035328] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:46,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:46,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-16 11:30:46,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546745187] [2022-11-16 11:30:46,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:46,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 11:30:46,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:46,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 11:30:46,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:30:46,834 INFO L87 Difference]: Start difference. First operand 1427 states and 4676 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:49,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:49,633 INFO L93 Difference]: Finished difference Result 3221 states and 9324 transitions. [2022-11-16 11:30:49,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:30:49,634 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:30:49,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:49,639 INFO L225 Difference]: With dead ends: 3221 [2022-11-16 11:30:49,639 INFO L226 Difference]: Without dead ends: 3200 [2022-11-16 11:30:49,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=228, Invalid=528, Unknown=0, NotChecked=0, Total=756 [2022-11-16 11:30:49,640 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 357 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 1501 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 1532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:49,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 58 Invalid, 1532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1501 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-16 11:30:49,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3200 states. [2022-11-16 11:30:49,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3200 to 1505. [2022-11-16 11:30:49,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1505 states, 1504 states have (on average 3.261968085106383) internal successors, (4906), 1504 states have internal predecessors, (4906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:49,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 4906 transitions. [2022-11-16 11:30:49,669 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 4906 transitions. Word has length 33 [2022-11-16 11:30:49,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:49,669 INFO L495 AbstractCegarLoop]: Abstraction has 1505 states and 4906 transitions. [2022-11-16 11:30:49,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:49,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 4906 transitions. [2022-11-16 11:30:49,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:30:49,671 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:49,671 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:49,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-11-16 11:30:49,671 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:30:49,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:49,672 INFO L85 PathProgramCache]: Analyzing trace with hash -2066506791, now seen corresponding path program 84 times [2022-11-16 11:30:49,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:49,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123134892] [2022-11-16 11:30:49,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:49,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:49,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:50,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:50,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:50,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123134892] [2022-11-16 11:30:50,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123134892] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:50,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:50,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:30:50,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109108212] [2022-11-16 11:30:50,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:50,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:30:50,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:50,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:30:50,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:30:50,906 INFO L87 Difference]: Start difference. First operand 1505 states and 4906 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:53,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:53,020 INFO L93 Difference]: Finished difference Result 2716 states and 8158 transitions. [2022-11-16 11:30:53,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:30:53,021 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:30:53,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:53,026 INFO L225 Difference]: With dead ends: 2716 [2022-11-16 11:30:53,026 INFO L226 Difference]: Without dead ends: 2703 [2022-11-16 11:30:53,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=161, Invalid=345, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:30:53,026 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 239 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 1357 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 1384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:53,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 41 Invalid, 1384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1357 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:30:53,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2703 states. [2022-11-16 11:30:53,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2703 to 1507. [2022-11-16 11:30:53,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1506 states have (on average 3.259628154050465) internal successors, (4909), 1506 states have internal predecessors, (4909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:53,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 4909 transitions. [2022-11-16 11:30:53,057 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 4909 transitions. Word has length 33 [2022-11-16 11:30:53,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:53,058 INFO L495 AbstractCegarLoop]: Abstraction has 1507 states and 4909 transitions. [2022-11-16 11:30:53,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:53,058 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 4909 transitions. [2022-11-16 11:30:53,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:30:53,060 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:53,060 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:53,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-11-16 11:30:53,060 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:30:53,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:53,061 INFO L85 PathProgramCache]: Analyzing trace with hash -366717951, now seen corresponding path program 85 times [2022-11-16 11:30:53,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:53,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066842522] [2022-11-16 11:30:53,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:53,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:53,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:54,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:54,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:54,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066842522] [2022-11-16 11:30:54,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066842522] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:54,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:54,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:30:54,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858743814] [2022-11-16 11:30:54,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:54,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:30:54,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:54,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:30:54,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:30:54,422 INFO L87 Difference]: Start difference. First operand 1507 states and 4909 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:56,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:56,428 INFO L93 Difference]: Finished difference Result 2734 states and 8182 transitions. [2022-11-16 11:30:56,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:30:56,428 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:30:56,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:56,433 INFO L225 Difference]: With dead ends: 2734 [2022-11-16 11:30:56,433 INFO L226 Difference]: Without dead ends: 2723 [2022-11-16 11:30:56,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:30:56,434 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 267 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1314 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 1339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:56,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 44 Invalid, 1339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1314 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:30:56,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2723 states. [2022-11-16 11:30:56,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2723 to 1507. [2022-11-16 11:30:56,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1506 states have (on average 3.259628154050465) internal successors, (4909), 1506 states have internal predecessors, (4909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:56,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 4909 transitions. [2022-11-16 11:30:56,464 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 4909 transitions. Word has length 33 [2022-11-16 11:30:56,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:56,464 INFO L495 AbstractCegarLoop]: Abstraction has 1507 states and 4909 transitions. [2022-11-16 11:30:56,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:56,464 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 4909 transitions. [2022-11-16 11:30:56,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:30:56,466 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:56,467 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:56,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-11-16 11:30:56,467 INFO L420 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:30:56,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:56,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1238971455, now seen corresponding path program 86 times [2022-11-16 11:30:56,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:56,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890871727] [2022-11-16 11:30:56,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:56,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:56,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:57,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:57,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:57,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890871727] [2022-11-16 11:30:57,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890871727] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:57,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:57,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:30:57,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834351006] [2022-11-16 11:30:57,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:57,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:30:57,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:57,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:30:57,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:30:57,786 INFO L87 Difference]: Start difference. First operand 1507 states and 4909 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:59,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:59,687 INFO L93 Difference]: Finished difference Result 2722 states and 8168 transitions. [2022-11-16 11:30:59,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:30:59,687 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:30:59,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:59,692 INFO L225 Difference]: With dead ends: 2722 [2022-11-16 11:30:59,692 INFO L226 Difference]: Without dead ends: 2699 [2022-11-16 11:30:59,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=163, Invalid=343, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:30:59,692 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 251 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 1241 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 1266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:59,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 37 Invalid, 1266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1241 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:30:59,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2699 states. [2022-11-16 11:30:59,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2699 to 1503. [2022-11-16 11:30:59,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1503 states, 1502 states have (on average 3.2589880159786953) internal successors, (4895), 1502 states have internal predecessors, (4895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:59,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 4895 transitions. [2022-11-16 11:30:59,722 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 4895 transitions. Word has length 33 [2022-11-16 11:30:59,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:59,722 INFO L495 AbstractCegarLoop]: Abstraction has 1503 states and 4895 transitions. [2022-11-16 11:30:59,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:59,722 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 4895 transitions. [2022-11-16 11:30:59,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:30:59,724 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:59,724 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:59,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-11-16 11:30:59,724 INFO L420 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:30:59,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:59,725 INFO L85 PathProgramCache]: Analyzing trace with hash 673894481, now seen corresponding path program 87 times [2022-11-16 11:30:59,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:59,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488334842] [2022-11-16 11:30:59,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:59,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:59,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:01,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:01,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:01,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488334842] [2022-11-16 11:31:01,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488334842] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:01,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:01,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:31:01,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036570908] [2022-11-16 11:31:01,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:01,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:31:01,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:01,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:31:01,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:31:01,099 INFO L87 Difference]: Start difference. First operand 1503 states and 4895 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:03,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:03,207 INFO L93 Difference]: Finished difference Result 2754 states and 8226 transitions. [2022-11-16 11:31:03,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:31:03,208 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:31:03,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:31:03,213 INFO L225 Difference]: With dead ends: 2754 [2022-11-16 11:31:03,213 INFO L226 Difference]: Without dead ends: 2739 [2022-11-16 11:31:03,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:31:03,214 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 304 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1238 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 1265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:31:03,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 49 Invalid, 1265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1238 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:31:03,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2739 states. [2022-11-16 11:31:03,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2739 to 1507. [2022-11-16 11:31:03,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1506 states have (on average 3.258300132802125) internal successors, (4907), 1506 states have internal predecessors, (4907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:03,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 4907 transitions. [2022-11-16 11:31:03,250 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 4907 transitions. Word has length 33 [2022-11-16 11:31:03,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:31:03,250 INFO L495 AbstractCegarLoop]: Abstraction has 1507 states and 4907 transitions. [2022-11-16 11:31:03,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:03,250 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 4907 transitions. [2022-11-16 11:31:03,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:31:03,253 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:31:03,253 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:31:03,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-11-16 11:31:03,253 INFO L420 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:31:03,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:03,253 INFO L85 PathProgramCache]: Analyzing trace with hash -929169149, now seen corresponding path program 88 times [2022-11-16 11:31:03,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:03,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46720979] [2022-11-16 11:31:03,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:03,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:03,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:04,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:04,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:04,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46720979] [2022-11-16 11:31:04,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46720979] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:04,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:04,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:31:04,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101150233] [2022-11-16 11:31:04,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:04,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:31:04,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:04,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:31:04,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:31:04,535 INFO L87 Difference]: Start difference. First operand 1507 states and 4907 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:06,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:06,889 INFO L93 Difference]: Finished difference Result 2750 states and 8216 transitions. [2022-11-16 11:31:06,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:31:06,890 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:31:06,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:31:06,895 INFO L225 Difference]: With dead ends: 2750 [2022-11-16 11:31:06,895 INFO L226 Difference]: Without dead ends: 2737 [2022-11-16 11:31:06,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:31:06,896 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 255 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 1368 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 1393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:31:06,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 55 Invalid, 1393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1368 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-16 11:31:06,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2737 states. [2022-11-16 11:31:06,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2737 to 1507. [2022-11-16 11:31:06,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1506 states have (on average 3.256972111553785) internal successors, (4905), 1506 states have internal predecessors, (4905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:06,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 4905 transitions. [2022-11-16 11:31:06,930 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 4905 transitions. Word has length 33 [2022-11-16 11:31:06,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:31:06,930 INFO L495 AbstractCegarLoop]: Abstraction has 1507 states and 4905 transitions. [2022-11-16 11:31:06,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:06,930 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 4905 transitions. [2022-11-16 11:31:06,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:31:06,933 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:31:06,933 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:31:06,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-11-16 11:31:06,933 INFO L420 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:31:06,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:06,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1747408363, now seen corresponding path program 89 times [2022-11-16 11:31:06,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:06,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446009906] [2022-11-16 11:31:06,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:06,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:07,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:08,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:08,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:08,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446009906] [2022-11-16 11:31:08,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446009906] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:08,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:08,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:31:08,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323440870] [2022-11-16 11:31:08,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:08,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:31:08,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:08,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:31:08,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:31:08,301 INFO L87 Difference]: Start difference. First operand 1507 states and 4905 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:10,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:10,622 INFO L93 Difference]: Finished difference Result 2750 states and 8214 transitions. [2022-11-16 11:31:10,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:31:10,622 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:31:10,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:31:10,627 INFO L225 Difference]: With dead ends: 2750 [2022-11-16 11:31:10,627 INFO L226 Difference]: Without dead ends: 2735 [2022-11-16 11:31:10,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:31:10,627 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 251 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1404 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 1431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:31:10,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 45 Invalid, 1431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1404 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-16 11:31:10,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2735 states. [2022-11-16 11:31:10,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2735 to 1505. [2022-11-16 11:31:10,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1505 states, 1504 states have (on average 3.257978723404255) internal successors, (4900), 1504 states have internal predecessors, (4900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:10,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 4900 transitions. [2022-11-16 11:31:10,661 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 4900 transitions. Word has length 33 [2022-11-16 11:31:10,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:31:10,662 INFO L495 AbstractCegarLoop]: Abstraction has 1505 states and 4900 transitions. [2022-11-16 11:31:10,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:10,662 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 4900 transitions. [2022-11-16 11:31:10,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:31:10,664 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:31:10,665 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:31:10,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-11-16 11:31:10,665 INFO L420 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:31:10,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:10,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1292966425, now seen corresponding path program 90 times [2022-11-16 11:31:10,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:10,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100956617] [2022-11-16 11:31:10,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:10,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:10,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:11,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:11,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:11,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100956617] [2022-11-16 11:31:11,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100956617] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:11,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:11,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:31:11,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138923651] [2022-11-16 11:31:11,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:11,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:31:11,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:11,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:31:11,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:31:11,906 INFO L87 Difference]: Start difference. First operand 1505 states and 4900 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:14,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:14,033 INFO L93 Difference]: Finished difference Result 2770 states and 8250 transitions. [2022-11-16 11:31:14,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:31:14,034 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:31:14,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:31:14,038 INFO L225 Difference]: With dead ends: 2770 [2022-11-16 11:31:14,039 INFO L226 Difference]: Without dead ends: 2755 [2022-11-16 11:31:14,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:31:14,039 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 309 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1335 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 1360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:31:14,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 49 Invalid, 1360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1335 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:31:14,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2755 states. [2022-11-16 11:31:14,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2755 to 1507. [2022-11-16 11:31:14,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1506 states have (on average 3.258300132802125) internal successors, (4907), 1506 states have internal predecessors, (4907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:14,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 4907 transitions. [2022-11-16 11:31:14,071 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 4907 transitions. Word has length 33 [2022-11-16 11:31:14,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:31:14,071 INFO L495 AbstractCegarLoop]: Abstraction has 1507 states and 4907 transitions. [2022-11-16 11:31:14,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:14,071 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 4907 transitions. [2022-11-16 11:31:14,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:31:14,073 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:31:14,073 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:31:14,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-11-16 11:31:14,074 INFO L420 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:31:14,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:14,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1398937241, now seen corresponding path program 91 times [2022-11-16 11:31:14,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:14,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022296116] [2022-11-16 11:31:14,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:14,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:14,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:15,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:15,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:15,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022296116] [2022-11-16 11:31:15,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022296116] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:15,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:15,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:31:15,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255031571] [2022-11-16 11:31:15,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:15,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:31:15,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:15,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:31:15,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:31:15,369 INFO L87 Difference]: Start difference. First operand 1507 states and 4907 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:17,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:17,425 INFO L93 Difference]: Finished difference Result 2766 states and 8240 transitions. [2022-11-16 11:31:17,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:31:17,426 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:31:17,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:31:17,431 INFO L225 Difference]: With dead ends: 2766 [2022-11-16 11:31:17,431 INFO L226 Difference]: Without dead ends: 2753 [2022-11-16 11:31:17,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:31:17,431 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 320 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 1264 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 1290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:31:17,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [320 Valid, 53 Invalid, 1290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1264 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:31:17,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2753 states. [2022-11-16 11:31:17,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2753 to 1507. [2022-11-16 11:31:17,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1506 states have (on average 3.256972111553785) internal successors, (4905), 1506 states have internal predecessors, (4905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:17,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 4905 transitions. [2022-11-16 11:31:17,459 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 4905 transitions. Word has length 33 [2022-11-16 11:31:17,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:31:17,460 INFO L495 AbstractCegarLoop]: Abstraction has 1507 states and 4905 transitions. [2022-11-16 11:31:17,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:17,460 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 4905 transitions. [2022-11-16 11:31:17,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:31:17,462 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:31:17,462 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:31:17,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-11-16 11:31:17,462 INFO L420 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:31:17,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:17,463 INFO L85 PathProgramCache]: Analyzing trace with hash -524471061, now seen corresponding path program 92 times [2022-11-16 11:31:17,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:17,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841833421] [2022-11-16 11:31:17,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:17,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:17,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:18,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:18,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:18,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841833421] [2022-11-16 11:31:18,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841833421] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:18,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:18,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:31:18,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490334729] [2022-11-16 11:31:18,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:18,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:31:18,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:18,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:31:18,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:31:18,709 INFO L87 Difference]: Start difference. First operand 1507 states and 4905 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:20,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:20,583 INFO L93 Difference]: Finished difference Result 2750 states and 8220 transitions. [2022-11-16 11:31:20,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:31:20,584 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:31:20,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:31:20,588 INFO L225 Difference]: With dead ends: 2750 [2022-11-16 11:31:20,589 INFO L226 Difference]: Without dead ends: 2735 [2022-11-16 11:31:20,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:31:20,589 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 310 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1238 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 1264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:31:20,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 44 Invalid, 1264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1238 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:31:20,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2735 states. [2022-11-16 11:31:20,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2735 to 1511. [2022-11-16 11:31:20,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1511 states, 1510 states have (on average 3.252980132450331) internal successors, (4912), 1510 states have internal predecessors, (4912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:20,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1511 states to 1511 states and 4912 transitions. [2022-11-16 11:31:20,621 INFO L78 Accepts]: Start accepts. Automaton has 1511 states and 4912 transitions. Word has length 33 [2022-11-16 11:31:20,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:31:20,621 INFO L495 AbstractCegarLoop]: Abstraction has 1511 states and 4912 transitions. [2022-11-16 11:31:20,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:20,621 INFO L276 IsEmpty]: Start isEmpty. Operand 1511 states and 4912 transitions. [2022-11-16 11:31:20,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:31:20,623 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:31:20,623 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:31:20,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-11-16 11:31:20,624 INFO L420 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:31:20,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:20,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1083844121, now seen corresponding path program 93 times [2022-11-16 11:31:20,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:20,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214528110] [2022-11-16 11:31:20,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:20,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:20,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:21,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:21,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:21,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214528110] [2022-11-16 11:31:21,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214528110] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:21,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:21,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:31:21,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834799501] [2022-11-16 11:31:21,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:21,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:31:21,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:21,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:31:21,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:31:21,902 INFO L87 Difference]: Start difference. First operand 1511 states and 4912 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:23,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:23,791 INFO L93 Difference]: Finished difference Result 2738 states and 8203 transitions. [2022-11-16 11:31:23,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:31:23,792 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:31:23,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:31:23,797 INFO L225 Difference]: With dead ends: 2738 [2022-11-16 11:31:23,797 INFO L226 Difference]: Without dead ends: 2721 [2022-11-16 11:31:23,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:31:23,797 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 259 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 1335 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 1360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:31:23,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 42 Invalid, 1360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1335 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:31:23,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2721 states. [2022-11-16 11:31:23,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2721 to 1507. [2022-11-16 11:31:23,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1506 states have (on average 3.255644090305445) internal successors, (4903), 1506 states have internal predecessors, (4903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:23,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 4903 transitions. [2022-11-16 11:31:23,826 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 4903 transitions. Word has length 33 [2022-11-16 11:31:23,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:31:23,826 INFO L495 AbstractCegarLoop]: Abstraction has 1507 states and 4903 transitions. [2022-11-16 11:31:23,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:23,826 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 4903 transitions. [2022-11-16 11:31:23,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:31:23,828 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:31:23,828 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:31:23,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-11-16 11:31:23,828 INFO L420 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:31:23,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:23,829 INFO L85 PathProgramCache]: Analyzing trace with hash -282899669, now seen corresponding path program 94 times [2022-11-16 11:31:23,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:23,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831504641] [2022-11-16 11:31:23,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:23,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:23,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:25,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:25,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:25,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831504641] [2022-11-16 11:31:25,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831504641] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:25,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:25,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:31:25,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204151010] [2022-11-16 11:31:25,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:25,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:31:25,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:25,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:31:25,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:31:25,043 INFO L87 Difference]: Start difference. First operand 1507 states and 4903 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:27,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:27,010 INFO L93 Difference]: Finished difference Result 2760 states and 8223 transitions. [2022-11-16 11:31:27,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:31:27,010 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:31:27,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:31:27,015 INFO L225 Difference]: With dead ends: 2760 [2022-11-16 11:31:27,015 INFO L226 Difference]: Without dead ends: 2749 [2022-11-16 11:31:27,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:31:27,016 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 317 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 1255 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 1280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:31:27,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 43 Invalid, 1280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1255 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:31:27,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2749 states. [2022-11-16 11:31:27,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2749 to 1507. [2022-11-16 11:31:27,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1506 states have (on average 3.255644090305445) internal successors, (4903), 1506 states have internal predecessors, (4903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:27,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 4903 transitions. [2022-11-16 11:31:27,046 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 4903 transitions. Word has length 33 [2022-11-16 11:31:27,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:31:27,046 INFO L495 AbstractCegarLoop]: Abstraction has 1507 states and 4903 transitions. [2022-11-16 11:31:27,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:27,046 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 4903 transitions. [2022-11-16 11:31:27,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:31:27,048 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:31:27,048 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:31:27,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-11-16 11:31:27,048 INFO L420 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:31:27,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:27,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1366488153, now seen corresponding path program 95 times [2022-11-16 11:31:27,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:27,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497752573] [2022-11-16 11:31:27,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:27,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:27,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:28,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:28,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:28,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497752573] [2022-11-16 11:31:28,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497752573] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:28,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:28,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:31:28,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955552866] [2022-11-16 11:31:28,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:28,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:31:28,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:28,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:31:28,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:31:28,347 INFO L87 Difference]: Start difference. First operand 1507 states and 4903 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:30,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:30,364 INFO L93 Difference]: Finished difference Result 2748 states and 8209 transitions. [2022-11-16 11:31:30,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:31:30,365 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:31:30,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:31:30,369 INFO L225 Difference]: With dead ends: 2748 [2022-11-16 11:31:30,370 INFO L226 Difference]: Without dead ends: 2731 [2022-11-16 11:31:30,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:31:30,370 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 295 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 1268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:31:30,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 37 Invalid, 1268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1243 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:31:30,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2731 states. [2022-11-16 11:31:30,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2731 to 1505. [2022-11-16 11:31:30,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1505 states, 1504 states have (on average 3.2566489361702127) internal successors, (4898), 1504 states have internal predecessors, (4898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:30,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 4898 transitions. [2022-11-16 11:31:30,400 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 4898 transitions. Word has length 33 [2022-11-16 11:31:30,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:31:30,400 INFO L495 AbstractCegarLoop]: Abstraction has 1505 states and 4898 transitions. [2022-11-16 11:31:30,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:30,400 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 4898 transitions. [2022-11-16 11:31:30,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:31:30,402 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:31:30,402 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:31:30,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-11-16 11:31:30,403 INFO L420 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:31:30,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:30,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1150071705, now seen corresponding path program 96 times [2022-11-16 11:31:30,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:30,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294596339] [2022-11-16 11:31:30,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:30,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:30,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:32,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:32,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:32,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294596339] [2022-11-16 11:31:32,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294596339] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:32,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:32,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-16 11:31:32,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242608192] [2022-11-16 11:31:32,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:32,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-16 11:31:32,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:32,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-16 11:31:32,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-11-16 11:31:32,337 INFO L87 Difference]: Start difference. First operand 1505 states and 4898 transitions. Second operand has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:35,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:35,064 INFO L93 Difference]: Finished difference Result 2746 states and 8205 transitions. [2022-11-16 11:31:35,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:31:35,065 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:31:35,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:31:35,069 INFO L225 Difference]: With dead ends: 2746 [2022-11-16 11:31:35,069 INFO L226 Difference]: Without dead ends: 2733 [2022-11-16 11:31:35,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=216, Invalid=540, Unknown=0, NotChecked=0, Total=756 [2022-11-16 11:31:35,070 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 364 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1495 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 1525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:31:35,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 49 Invalid, 1525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1495 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-16 11:31:35,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2733 states. [2022-11-16 11:31:35,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2733 to 1507. [2022-11-16 11:31:35,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1506 states have (on average 3.254316069057105) internal successors, (4901), 1506 states have internal predecessors, (4901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:35,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 4901 transitions. [2022-11-16 11:31:35,098 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 4901 transitions. Word has length 33 [2022-11-16 11:31:35,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:31:35,099 INFO L495 AbstractCegarLoop]: Abstraction has 1507 states and 4901 transitions. [2022-11-16 11:31:35,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:35,099 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 4901 transitions. [2022-11-16 11:31:35,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:31:35,101 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:31:35,101 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:31:35,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-11-16 11:31:35,101 INFO L420 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:31:35,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:35,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1086624579, now seen corresponding path program 97 times [2022-11-16 11:31:35,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:35,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449748487] [2022-11-16 11:31:35,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:35,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:35,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:36,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:36,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:36,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449748487] [2022-11-16 11:31:36,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449748487] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:36,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:36,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:31:36,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339211910] [2022-11-16 11:31:36,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:36,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:31:36,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:36,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:31:36,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:31:36,286 INFO L87 Difference]: Start difference. First operand 1507 states and 4901 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:38,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:38,340 INFO L93 Difference]: Finished difference Result 2748 states and 8209 transitions. [2022-11-16 11:31:38,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:31:38,340 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:31:38,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:31:38,344 INFO L225 Difference]: With dead ends: 2748 [2022-11-16 11:31:38,345 INFO L226 Difference]: Without dead ends: 2737 [2022-11-16 11:31:38,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:31:38,345 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 284 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 1337 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 1364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:31:38,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 47 Invalid, 1364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1337 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:31:38,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2737 states. [2022-11-16 11:31:38,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2737 to 1507. [2022-11-16 11:31:38,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1506 states have (on average 3.254316069057105) internal successors, (4901), 1506 states have internal predecessors, (4901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:38,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 4901 transitions. [2022-11-16 11:31:38,373 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 4901 transitions. Word has length 33 [2022-11-16 11:31:38,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:31:38,373 INFO L495 AbstractCegarLoop]: Abstraction has 1507 states and 4901 transitions. [2022-11-16 11:31:38,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:38,373 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 4901 transitions. [2022-11-16 11:31:38,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:31:38,375 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:31:38,375 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:31:38,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-11-16 11:31:38,376 INFO L420 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:31:38,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:38,376 INFO L85 PathProgramCache]: Analyzing trace with hash 3036095, now seen corresponding path program 98 times [2022-11-16 11:31:38,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:38,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128175843] [2022-11-16 11:31:38,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:38,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:38,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:39,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:39,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:39,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128175843] [2022-11-16 11:31:39,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128175843] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:39,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:39,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:31:39,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513539519] [2022-11-16 11:31:39,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:39,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:31:39,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:39,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:31:39,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:31:39,572 INFO L87 Difference]: Start difference. First operand 1507 states and 4901 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:41,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:41,540 INFO L93 Difference]: Finished difference Result 2736 states and 8195 transitions. [2022-11-16 11:31:41,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:31:41,540 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:31:41,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:31:41,545 INFO L225 Difference]: With dead ends: 2736 [2022-11-16 11:31:41,545 INFO L226 Difference]: Without dead ends: 2717 [2022-11-16 11:31:41,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:31:41,546 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 254 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 1279 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 1306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:31:41,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 36 Invalid, 1306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1279 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:31:41,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2717 states. [2022-11-16 11:31:41,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2717 to 1503. [2022-11-16 11:31:41,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1503 states, 1502 states have (on average 3.2536617842876163) internal successors, (4887), 1502 states have internal predecessors, (4887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:41,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 4887 transitions. [2022-11-16 11:31:41,581 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 4887 transitions. Word has length 33 [2022-11-16 11:31:41,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:31:41,581 INFO L495 AbstractCegarLoop]: Abstraction has 1503 states and 4887 transitions. [2022-11-16 11:31:41,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:41,582 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 4887 transitions. [2022-11-16 11:31:41,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:31:41,584 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:31:41,584 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:31:41,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-11-16 11:31:41,584 INFO L420 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:31:41,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:41,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1057723567, now seen corresponding path program 99 times [2022-11-16 11:31:41,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:41,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104109638] [2022-11-16 11:31:41,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:41,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:41,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:42,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:42,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:42,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104109638] [2022-11-16 11:31:42,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104109638] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:42,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:42,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:31:42,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464304475] [2022-11-16 11:31:42,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:42,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:31:42,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:42,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:31:42,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:31:42,944 INFO L87 Difference]: Start difference. First operand 1503 states and 4887 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:44,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:44,914 INFO L93 Difference]: Finished difference Result 2800 states and 8321 transitions. [2022-11-16 11:31:44,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:31:44,914 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:31:44,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:31:44,919 INFO L225 Difference]: With dead ends: 2800 [2022-11-16 11:31:44,919 INFO L226 Difference]: Without dead ends: 2785 [2022-11-16 11:31:44,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=160, Invalid=346, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:31:44,920 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 304 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 1323 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 1347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:31:44,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 48 Invalid, 1347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1323 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:31:44,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2785 states. [2022-11-16 11:31:44,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2785 to 1507. [2022-11-16 11:31:44,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1506 states have (on average 3.255644090305445) internal successors, (4903), 1506 states have internal predecessors, (4903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:44,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 4903 transitions. [2022-11-16 11:31:44,947 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 4903 transitions. Word has length 33 [2022-11-16 11:31:44,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:31:44,947 INFO L495 AbstractCegarLoop]: Abstraction has 1507 states and 4903 transitions. [2022-11-16 11:31:44,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:44,947 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 4903 transitions. [2022-11-16 11:31:44,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:31:44,949 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:31:44,949 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:31:44,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-11-16 11:31:44,949 INFO L420 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:31:44,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:44,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1634180099, now seen corresponding path program 100 times [2022-11-16 11:31:44,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:44,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732766961] [2022-11-16 11:31:44,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:44,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:45,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:46,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:46,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:46,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732766961] [2022-11-16 11:31:46,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732766961] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:46,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:46,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:31:46,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481929341] [2022-11-16 11:31:46,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:46,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:31:46,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:46,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:31:46,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:31:46,142 INFO L87 Difference]: Start difference. First operand 1507 states and 4903 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:48,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:48,145 INFO L93 Difference]: Finished difference Result 2796 states and 8311 transitions. [2022-11-16 11:31:48,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:31:48,146 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:31:48,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:31:48,150 INFO L225 Difference]: With dead ends: 2796 [2022-11-16 11:31:48,150 INFO L226 Difference]: Without dead ends: 2783 [2022-11-16 11:31:48,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=160, Invalid=346, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:31:48,151 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 284 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 1365 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 1389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:31:48,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 55 Invalid, 1389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1365 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:31:48,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2783 states. [2022-11-16 11:31:48,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2783 to 1507. [2022-11-16 11:31:48,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1506 states have (on average 3.254316069057105) internal successors, (4901), 1506 states have internal predecessors, (4901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:48,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 4901 transitions. [2022-11-16 11:31:48,182 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 4901 transitions. Word has length 33 [2022-11-16 11:31:48,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:31:48,182 INFO L495 AbstractCegarLoop]: Abstraction has 1507 states and 4901 transitions. [2022-11-16 11:31:48,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:48,182 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 4901 transitions. [2022-11-16 11:31:48,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:31:48,185 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:31:48,185 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:31:48,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-11-16 11:31:48,186 INFO L420 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:31:48,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:48,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1474007763, now seen corresponding path program 101 times [2022-11-16 11:31:48,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:48,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846618543] [2022-11-16 11:31:48,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:48,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:48,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:49,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:49,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:49,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846618543] [2022-11-16 11:31:49,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846618543] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:49,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:49,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:31:49,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834289097] [2022-11-16 11:31:49,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:49,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:31:49,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:49,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:31:49,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:31:49,434 INFO L87 Difference]: Start difference. First operand 1507 states and 4901 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:51,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:51,450 INFO L93 Difference]: Finished difference Result 2810 states and 8343 transitions. [2022-11-16 11:31:51,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:31:51,450 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:31:51,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:31:51,455 INFO L225 Difference]: With dead ends: 2810 [2022-11-16 11:31:51,455 INFO L226 Difference]: Without dead ends: 2795 [2022-11-16 11:31:51,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=161, Invalid=345, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:31:51,456 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 294 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 1366 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 1390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:31:51,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 43 Invalid, 1390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1366 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:31:51,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2795 states. [2022-11-16 11:31:51,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2795 to 1513. [2022-11-16 11:31:51,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1512 states have (on average 3.248677248677249) internal successors, (4912), 1512 states have internal predecessors, (4912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:51,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 4912 transitions. [2022-11-16 11:31:51,485 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 4912 transitions. Word has length 33 [2022-11-16 11:31:51,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:31:51,486 INFO L495 AbstractCegarLoop]: Abstraction has 1513 states and 4912 transitions. [2022-11-16 11:31:51,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:51,486 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 4912 transitions. [2022-11-16 11:31:51,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:31:51,488 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:31:51,488 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:31:51,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-11-16 11:31:51,488 INFO L420 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:31:51,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:51,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1476633539, now seen corresponding path program 102 times [2022-11-16 11:31:51,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:51,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202331437] [2022-11-16 11:31:51,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:51,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:51,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:52,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:52,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:52,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202331437] [2022-11-16 11:31:52,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202331437] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:52,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:52,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:31:52,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590386458] [2022-11-16 11:31:52,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:52,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:31:52,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:52,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:31:52,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:31:52,751 INFO L87 Difference]: Start difference. First operand 1513 states and 4912 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:54,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:54,718 INFO L93 Difference]: Finished difference Result 2812 states and 8341 transitions. [2022-11-16 11:31:54,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:31:54,719 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:31:54,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:31:54,724 INFO L225 Difference]: With dead ends: 2812 [2022-11-16 11:31:54,724 INFO L226 Difference]: Without dead ends: 2789 [2022-11-16 11:31:54,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:31:54,725 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 307 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 1327 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 1351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:31:54,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 38 Invalid, 1351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1327 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:31:54,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2789 states. [2022-11-16 11:31:54,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2789 to 1507. [2022-11-16 11:31:54,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1506 states have (on average 3.252988047808765) internal successors, (4899), 1506 states have internal predecessors, (4899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:54,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 4899 transitions. [2022-11-16 11:31:54,751 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 4899 transitions. Word has length 33 [2022-11-16 11:31:54,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:31:54,751 INFO L495 AbstractCegarLoop]: Abstraction has 1507 states and 4899 transitions. [2022-11-16 11:31:54,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:54,751 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 4899 transitions. [2022-11-16 11:31:54,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:31:54,753 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:31:54,753 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:31:54,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-11-16 11:31:54,753 INFO L420 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:31:54,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:54,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1715579155, now seen corresponding path program 103 times [2022-11-16 11:31:54,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:54,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253335883] [2022-11-16 11:31:54,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:54,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:54,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:55,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:55,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:55,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253335883] [2022-11-16 11:31:55,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253335883] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:55,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:55,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:31:55,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912176679] [2022-11-16 11:31:55,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:55,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:31:55,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:55,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:31:55,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:31:55,906 INFO L87 Difference]: Start difference. First operand 1507 states and 4899 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:57,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:57,856 INFO L93 Difference]: Finished difference Result 2798 states and 8313 transitions. [2022-11-16 11:31:57,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:31:57,856 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:31:57,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:31:57,861 INFO L225 Difference]: With dead ends: 2798 [2022-11-16 11:31:57,861 INFO L226 Difference]: Without dead ends: 2787 [2022-11-16 11:31:57,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=161, Invalid=345, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:31:57,862 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 283 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 1345 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 1369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:31:57,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 51 Invalid, 1369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1345 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:31:57,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2787 states. [2022-11-16 11:31:57,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2787 to 1505. [2022-11-16 11:31:57,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1505 states, 1504 states have (on average 3.25531914893617) internal successors, (4896), 1504 states have internal predecessors, (4896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:57,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 4896 transitions. [2022-11-16 11:31:57,893 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 4896 transitions. Word has length 33 [2022-11-16 11:31:57,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:31:57,893 INFO L495 AbstractCegarLoop]: Abstraction has 1505 states and 4896 transitions. [2022-11-16 11:31:57,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:57,894 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 4896 transitions. [2022-11-16 11:31:57,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:31:57,896 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:31:57,896 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:31:57,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-11-16 11:31:57,896 INFO L420 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:31:57,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:57,897 INFO L85 PathProgramCache]: Analyzing trace with hash -973698735, now seen corresponding path program 104 times [2022-11-16 11:31:57,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:57,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868443575] [2022-11-16 11:31:57,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:57,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:57,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:59,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:31:59,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:59,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868443575] [2022-11-16 11:31:59,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868443575] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:59,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:59,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:31:59,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412127984] [2022-11-16 11:31:59,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:59,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:31:59,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:59,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:31:59,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:31:59,080 INFO L87 Difference]: Start difference. First operand 1505 states and 4896 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:00,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:32:00,915 INFO L93 Difference]: Finished difference Result 2804 states and 8323 transitions. [2022-11-16 11:32:00,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:32:00,915 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:32:00,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:32:00,920 INFO L225 Difference]: With dead ends: 2804 [2022-11-16 11:32:00,920 INFO L226 Difference]: Without dead ends: 2783 [2022-11-16 11:32:00,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:32:00,921 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 326 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1211 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 1236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:32:00,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 44 Invalid, 1236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1211 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-16 11:32:00,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2783 states. [2022-11-16 11:32:00,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2783 to 1505. [2022-11-16 11:32:00,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1505 states, 1504 states have (on average 3.2539893617021276) internal successors, (4894), 1504 states have internal predecessors, (4894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:00,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 4894 transitions. [2022-11-16 11:32:00,951 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 4894 transitions. Word has length 33 [2022-11-16 11:32:00,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:32:00,951 INFO L495 AbstractCegarLoop]: Abstraction has 1505 states and 4894 transitions. [2022-11-16 11:32:00,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:00,951 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 4894 transitions. [2022-11-16 11:32:00,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:32:00,953 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:32:00,953 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:32:00,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-11-16 11:32:00,953 INFO L420 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:32:00,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:00,953 INFO L85 PathProgramCache]: Analyzing trace with hash 116536335, now seen corresponding path program 105 times [2022-11-16 11:32:00,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:00,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944722221] [2022-11-16 11:32:00,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:00,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:32:01,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:02,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:32:02,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:32:02,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944722221] [2022-11-16 11:32:02,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944722221] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:32:02,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:32:02,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-16 11:32:02,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882160881] [2022-11-16 11:32:02,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:32:02,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 11:32:02,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:32:02,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 11:32:02,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:32:02,505 INFO L87 Difference]: Start difference. First operand 1505 states and 4894 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:04,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:32:04,786 INFO L93 Difference]: Finished difference Result 2798 states and 8317 transitions. [2022-11-16 11:32:04,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:32:04,787 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:32:04,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:32:04,792 INFO L225 Difference]: With dead ends: 2798 [2022-11-16 11:32:04,792 INFO L226 Difference]: Without dead ends: 2783 [2022-11-16 11:32:04,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=212, Invalid=490, Unknown=0, NotChecked=0, Total=702 [2022-11-16 11:32:04,793 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 413 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 1415 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 1443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:32:04,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 51 Invalid, 1443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1415 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:32:04,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2783 states. [2022-11-16 11:32:04,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2783 to 1507. [2022-11-16 11:32:04,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1506 states have (on average 3.254316069057105) internal successors, (4901), 1506 states have internal predecessors, (4901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:04,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 4901 transitions. [2022-11-16 11:32:04,823 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 4901 transitions. Word has length 33 [2022-11-16 11:32:04,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:32:04,823 INFO L495 AbstractCegarLoop]: Abstraction has 1507 states and 4901 transitions. [2022-11-16 11:32:04,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:04,823 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 4901 transitions. [2022-11-16 11:32:04,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:32:04,825 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:32:04,825 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:32:04,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-11-16 11:32:04,825 INFO L420 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:32:04,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:04,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1486527295, now seen corresponding path program 106 times [2022-11-16 11:32:04,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:04,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642016612] [2022-11-16 11:32:04,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:04,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:32:04,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:06,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:32:06,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:32:06,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642016612] [2022-11-16 11:32:06,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642016612] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:32:06,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:32:06,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:32:06,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907425417] [2022-11-16 11:32:06,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:32:06,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:32:06,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:32:06,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:32:06,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:32:06,106 INFO L87 Difference]: Start difference. First operand 1507 states and 4901 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:08,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:32:08,102 INFO L93 Difference]: Finished difference Result 2794 states and 8307 transitions. [2022-11-16 11:32:08,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:32:08,102 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:32:08,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:32:08,107 INFO L225 Difference]: With dead ends: 2794 [2022-11-16 11:32:08,107 INFO L226 Difference]: Without dead ends: 2781 [2022-11-16 11:32:08,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:32:08,108 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 346 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 1208 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 1233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:32:08,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 47 Invalid, 1233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1208 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:32:08,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2781 states. [2022-11-16 11:32:08,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2781 to 1507. [2022-11-16 11:32:08,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1506 states have (on average 3.252988047808765) internal successors, (4899), 1506 states have internal predecessors, (4899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:08,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 4899 transitions. [2022-11-16 11:32:08,136 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 4899 transitions. Word has length 33 [2022-11-16 11:32:08,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:32:08,136 INFO L495 AbstractCegarLoop]: Abstraction has 1507 states and 4899 transitions. [2022-11-16 11:32:08,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:08,136 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 4899 transitions. [2022-11-16 11:32:08,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:32:08,138 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:32:08,138 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:32:08,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-11-16 11:32:08,138 INFO L420 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:32:08,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:08,139 INFO L85 PathProgramCache]: Analyzing trace with hash 885031699, now seen corresponding path program 107 times [2022-11-16 11:32:08,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:08,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948676444] [2022-11-16 11:32:08,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:08,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:32:08,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:09,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:32:09,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:32:09,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948676444] [2022-11-16 11:32:09,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948676444] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:32:09,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:32:09,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:32:09,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87387268] [2022-11-16 11:32:09,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:32:09,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:32:09,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:32:09,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:32:09,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:32:09,415 INFO L87 Difference]: Start difference. First operand 1507 states and 4899 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:11,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:32:11,373 INFO L93 Difference]: Finished difference Result 2796 states and 8314 transitions. [2022-11-16 11:32:11,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:32:11,373 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:32:11,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:32:11,378 INFO L225 Difference]: With dead ends: 2796 [2022-11-16 11:32:11,378 INFO L226 Difference]: Without dead ends: 2781 [2022-11-16 11:32:11,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:32:11,378 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 336 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 1230 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 1255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:32:11,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 40 Invalid, 1255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1230 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:32:11,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2781 states. [2022-11-16 11:32:11,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2781 to 1511. [2022-11-16 11:32:11,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1511 states, 1510 states have (on average 3.249006622516556) internal successors, (4906), 1510 states have internal predecessors, (4906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:11,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1511 states to 1511 states and 4906 transitions. [2022-11-16 11:32:11,407 INFO L78 Accepts]: Start accepts. Automaton has 1511 states and 4906 transitions. Word has length 33 [2022-11-16 11:32:11,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:32:11,407 INFO L495 AbstractCegarLoop]: Abstraction has 1511 states and 4906 transitions. [2022-11-16 11:32:11,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:11,407 INFO L276 IsEmpty]: Start isEmpty. Operand 1511 states and 4906 transitions. [2022-11-16 11:32:11,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:32:11,409 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:32:11,409 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:32:11,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-11-16 11:32:11,410 INFO L420 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:32:11,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:11,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1801620415, now seen corresponding path program 108 times [2022-11-16 11:32:11,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:11,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469667102] [2022-11-16 11:32:11,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:11,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:32:11,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:13,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:32:13,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:32:13,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469667102] [2022-11-16 11:32:13,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469667102] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:32:13,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:32:13,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-16 11:32:13,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527860694] [2022-11-16 11:32:13,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:32:13,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 11:32:13,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:32:13,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 11:32:13,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:32:13,005 INFO L87 Difference]: Start difference. First operand 1511 states and 4906 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:15,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:32:15,154 INFO L93 Difference]: Finished difference Result 2784 states and 8297 transitions. [2022-11-16 11:32:15,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:32:15,154 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:32:15,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:32:15,159 INFO L225 Difference]: With dead ends: 2784 [2022-11-16 11:32:15,159 INFO L226 Difference]: Without dead ends: 2767 [2022-11-16 11:32:15,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=212, Invalid=490, Unknown=0, NotChecked=0, Total=702 [2022-11-16 11:32:15,159 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 364 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1330 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 1356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:32:15,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 44 Invalid, 1356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1330 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:32:15,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2767 states. [2022-11-16 11:32:15,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2767 to 1507. [2022-11-16 11:32:15,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1506 states have (on average 3.251660026560425) internal successors, (4897), 1506 states have internal predecessors, (4897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:15,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 4897 transitions. [2022-11-16 11:32:15,187 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 4897 transitions. Word has length 33 [2022-11-16 11:32:15,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:32:15,187 INFO L495 AbstractCegarLoop]: Abstraction has 1507 states and 4897 transitions. [2022-11-16 11:32:15,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:15,187 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 4897 transitions. [2022-11-16 11:32:15,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:32:15,189 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:32:15,189 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:32:15,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-11-16 11:32:15,189 INFO L420 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:32:15,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:15,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1126603091, now seen corresponding path program 109 times [2022-11-16 11:32:15,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:15,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154532519] [2022-11-16 11:32:15,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:15,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:32:15,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:16,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:32:16,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:32:16,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154532519] [2022-11-16 11:32:16,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154532519] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:32:16,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:32:16,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:32:16,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613986122] [2022-11-16 11:32:16,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:32:16,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:32:16,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:32:16,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:32:16,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:32:16,404 INFO L87 Difference]: Start difference. First operand 1507 states and 4897 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:18,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:32:18,358 INFO L93 Difference]: Finished difference Result 2790 states and 8298 transitions. [2022-11-16 11:32:18,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:32:18,358 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:32:18,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:32:18,365 INFO L225 Difference]: With dead ends: 2790 [2022-11-16 11:32:18,366 INFO L226 Difference]: Without dead ends: 2779 [2022-11-16 11:32:18,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:32:18,366 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 312 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 1281 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 1306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:32:18,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 41 Invalid, 1306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1281 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:32:18,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2779 states. [2022-11-16 11:32:18,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2779 to 1507. [2022-11-16 11:32:18,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1506 states have (on average 3.251660026560425) internal successors, (4897), 1506 states have internal predecessors, (4897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:18,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 4897 transitions. [2022-11-16 11:32:18,411 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 4897 transitions. Word has length 33 [2022-11-16 11:32:18,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:32:18,411 INFO L495 AbstractCegarLoop]: Abstraction has 1507 states and 4897 transitions. [2022-11-16 11:32:18,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:18,412 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 4897 transitions. [2022-11-16 11:32:18,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:32:18,415 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:32:18,415 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:32:18,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-11-16 11:32:18,415 INFO L420 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:32:18,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:18,416 INFO L85 PathProgramCache]: Analyzing trace with hash 43014607, now seen corresponding path program 110 times [2022-11-16 11:32:18,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:18,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77280112] [2022-11-16 11:32:18,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:18,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:32:18,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:19,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:32:19,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:32:19,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77280112] [2022-11-16 11:32:19,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77280112] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:32:19,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:32:19,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:32:19,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441845148] [2022-11-16 11:32:19,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:32:19,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:32:19,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:32:19,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:32:19,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:32:19,752 INFO L87 Difference]: Start difference. First operand 1507 states and 4897 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:21,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:32:21,627 INFO L93 Difference]: Finished difference Result 2782 states and 8291 transitions. [2022-11-16 11:32:21,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:32:21,627 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:32:21,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:32:21,632 INFO L225 Difference]: With dead ends: 2782 [2022-11-16 11:32:21,632 INFO L226 Difference]: Without dead ends: 2765 [2022-11-16 11:32:21,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:32:21,633 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 287 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 1270 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 1295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:32:21,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 35 Invalid, 1295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1270 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:32:21,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2765 states. [2022-11-16 11:32:21,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2765 to 1505. [2022-11-16 11:32:21,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1505 states, 1504 states have (on average 3.252659574468085) internal successors, (4892), 1504 states have internal predecessors, (4892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:21,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 4892 transitions. [2022-11-16 11:32:21,664 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 4892 transitions. Word has length 33 [2022-11-16 11:32:21,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:32:21,664 INFO L495 AbstractCegarLoop]: Abstraction has 1505 states and 4892 transitions. [2022-11-16 11:32:21,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:21,664 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 4892 transitions. [2022-11-16 11:32:21,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:32:21,667 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:32:21,667 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:32:21,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-11-16 11:32:21,667 INFO L420 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:32:21,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:21,667 INFO L85 PathProgramCache]: Analyzing trace with hash -472439729, now seen corresponding path program 111 times [2022-11-16 11:32:21,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:21,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565563044] [2022-11-16 11:32:21,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:21,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:32:21,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:22,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:32:22,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:32:22,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565563044] [2022-11-16 11:32:22,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565563044] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:32:22,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:32:22,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:32:22,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031462409] [2022-11-16 11:32:22,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:32:22,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:32:22,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:32:22,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:32:22,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:32:22,995 INFO L87 Difference]: Start difference. First operand 1505 states and 4892 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:24,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:32:24,943 INFO L93 Difference]: Finished difference Result 2772 states and 8269 transitions. [2022-11-16 11:32:24,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:32:24,943 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:32:24,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:32:24,948 INFO L225 Difference]: With dead ends: 2772 [2022-11-16 11:32:24,948 INFO L226 Difference]: Without dead ends: 2757 [2022-11-16 11:32:24,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=160, Invalid=346, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:32:24,949 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 264 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 1334 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 1358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:32:24,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 35 Invalid, 1358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1334 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:32:24,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2757 states. [2022-11-16 11:32:24,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2757 to 1515. [2022-11-16 11:32:24,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1515 states, 1514 states have (on average 3.248348745046235) internal successors, (4918), 1514 states have internal predecessors, (4918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:24,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1515 states to 1515 states and 4918 transitions. [2022-11-16 11:32:24,978 INFO L78 Accepts]: Start accepts. Automaton has 1515 states and 4918 transitions. Word has length 33 [2022-11-16 11:32:24,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:32:24,979 INFO L495 AbstractCegarLoop]: Abstraction has 1515 states and 4918 transitions. [2022-11-16 11:32:24,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:24,979 INFO L276 IsEmpty]: Start isEmpty. Operand 1515 states and 4918 transitions. [2022-11-16 11:32:24,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:32:24,981 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:32:24,981 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:32:24,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-11-16 11:32:24,981 INFO L420 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:32:24,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:24,981 INFO L85 PathProgramCache]: Analyzing trace with hash -469813953, now seen corresponding path program 112 times [2022-11-16 11:32:24,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:24,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919881667] [2022-11-16 11:32:24,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:24,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:32:25,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:26,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:32:26,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:32:26,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919881667] [2022-11-16 11:32:26,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919881667] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:32:26,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:32:26,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-16 11:32:26,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339224193] [2022-11-16 11:32:26,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:32:26,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 11:32:26,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:32:26,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 11:32:26,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:32:26,536 INFO L87 Difference]: Start difference. First operand 1515 states and 4918 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:28,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:32:28,620 INFO L93 Difference]: Finished difference Result 2774 states and 8267 transitions. [2022-11-16 11:32:28,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:32:28,620 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:32:28,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:32:28,625 INFO L225 Difference]: With dead ends: 2774 [2022-11-16 11:32:28,625 INFO L226 Difference]: Without dead ends: 2751 [2022-11-16 11:32:28,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=212, Invalid=490, Unknown=0, NotChecked=0, Total=702 [2022-11-16 11:32:28,626 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 353 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 1361 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 1387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:32:28,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 43 Invalid, 1387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1361 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:32:28,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2751 states. [2022-11-16 11:32:28,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2751 to 1509. [2022-11-16 11:32:28,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1509 states, 1508 states have (on average 3.2513262599469495) internal successors, (4903), 1508 states have internal predecessors, (4903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:28,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 4903 transitions. [2022-11-16 11:32:28,653 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 4903 transitions. Word has length 33 [2022-11-16 11:32:28,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:32:28,653 INFO L495 AbstractCegarLoop]: Abstraction has 1509 states and 4903 transitions. [2022-11-16 11:32:28,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:28,653 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 4903 transitions. [2022-11-16 11:32:28,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:32:28,655 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:32:28,655 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:32:28,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-11-16 11:32:28,655 INFO L420 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:32:28,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:28,655 INFO L85 PathProgramCache]: Analyzing trace with hash 2059291601, now seen corresponding path program 113 times [2022-11-16 11:32:28,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:28,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557853324] [2022-11-16 11:32:28,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:28,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:32:28,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:29,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:32:29,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:32:29,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557853324] [2022-11-16 11:32:29,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557853324] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:32:29,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:32:29,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:32:29,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37386041] [2022-11-16 11:32:29,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:32:29,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:32:29,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:32:29,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:32:29,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:32:29,922 INFO L87 Difference]: Start difference. First operand 1509 states and 4903 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:31,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:32:31,870 INFO L93 Difference]: Finished difference Result 2760 states and 8240 transitions. [2022-11-16 11:32:31,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:32:31,870 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:32:31,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:32:31,875 INFO L225 Difference]: With dead ends: 2760 [2022-11-16 11:32:31,875 INFO L226 Difference]: Without dead ends: 2745 [2022-11-16 11:32:31,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:32:31,876 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 288 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 1261 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 1286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:32:31,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 39 Invalid, 1286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1261 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:32:31,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2745 states. [2022-11-16 11:32:31,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2745 to 1513. [2022-11-16 11:32:31,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1512 states have (on average 3.247354497354497) internal successors, (4910), 1512 states have internal predecessors, (4910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:31,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 4910 transitions. [2022-11-16 11:32:31,906 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 4910 transitions. Word has length 33 [2022-11-16 11:32:31,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:32:31,906 INFO L495 AbstractCegarLoop]: Abstraction has 1513 states and 4910 transitions. [2022-11-16 11:32:31,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:31,906 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 4910 transitions. [2022-11-16 11:32:31,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:32:31,908 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:32:31,908 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:32:31,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-11-16 11:32:31,908 INFO L420 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:32:31,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:31,909 INFO L85 PathProgramCache]: Analyzing trace with hash -627360513, now seen corresponding path program 114 times [2022-11-16 11:32:31,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:31,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460391862] [2022-11-16 11:32:31,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:31,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:32:31,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:33,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:32:33,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:32:33,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460391862] [2022-11-16 11:32:33,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460391862] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:32:33,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:32:33,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:32:33,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017929128] [2022-11-16 11:32:33,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:32:33,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:32:33,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:32:33,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:32:33,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:32:33,157 INFO L87 Difference]: Start difference. First operand 1513 states and 4910 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:35,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:32:35,061 INFO L93 Difference]: Finished difference Result 2748 states and 8223 transitions. [2022-11-16 11:32:35,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:32:35,061 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:32:35,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:32:35,066 INFO L225 Difference]: With dead ends: 2748 [2022-11-16 11:32:35,066 INFO L226 Difference]: Without dead ends: 2731 [2022-11-16 11:32:35,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:32:35,067 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 257 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 1296 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 1320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:32:35,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 35 Invalid, 1320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1296 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:32:35,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2731 states. [2022-11-16 11:32:35,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2731 to 1509. [2022-11-16 11:32:35,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1509 states, 1508 states have (on average 3.2486737400530505) internal successors, (4899), 1508 states have internal predecessors, (4899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:35,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 4899 transitions. [2022-11-16 11:32:35,117 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 4899 transitions. Word has length 33 [2022-11-16 11:32:35,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:32:35,118 INFO L495 AbstractCegarLoop]: Abstraction has 1509 states and 4899 transitions. [2022-11-16 11:32:35,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:35,118 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 4899 transitions. [2022-11-16 11:32:35,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:32:35,120 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:32:35,120 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:32:35,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-11-16 11:32:35,120 INFO L420 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:32:35,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:35,121 INFO L85 PathProgramCache]: Analyzing trace with hash 2143316433, now seen corresponding path program 115 times [2022-11-16 11:32:35,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:35,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130600127] [2022-11-16 11:32:35,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:35,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:32:35,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:36,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:32:36,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:32:36,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130600127] [2022-11-16 11:32:36,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130600127] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:32:36,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:32:36,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:32:36,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789786915] [2022-11-16 11:32:36,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:32:36,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:32:36,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:32:36,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:32:36,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:32:36,514 INFO L87 Difference]: Start difference. First operand 1509 states and 4899 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:38,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:32:38,395 INFO L93 Difference]: Finished difference Result 2762 states and 8240 transitions. [2022-11-16 11:32:38,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:32:38,395 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:32:38,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:32:38,400 INFO L225 Difference]: With dead ends: 2762 [2022-11-16 11:32:38,400 INFO L226 Difference]: Without dead ends: 2745 [2022-11-16 11:32:38,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=160, Invalid=346, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:32:38,401 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 288 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 1295 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 1319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:32:38,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 33 Invalid, 1319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1295 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:32:38,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2745 states. [2022-11-16 11:32:38,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2745 to 1513. [2022-11-16 11:32:38,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1512 states have (on average 3.244708994708995) internal successors, (4906), 1512 states have internal predecessors, (4906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:38,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 4906 transitions. [2022-11-16 11:32:38,429 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 4906 transitions. Word has length 33 [2022-11-16 11:32:38,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:32:38,429 INFO L495 AbstractCegarLoop]: Abstraction has 1513 states and 4906 transitions. [2022-11-16 11:32:38,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:38,429 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 4906 transitions. [2022-11-16 11:32:38,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:32:38,431 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:32:38,431 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:32:38,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-11-16 11:32:38,431 INFO L420 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:32:38,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:38,431 INFO L85 PathProgramCache]: Analyzing trace with hash -545961457, now seen corresponding path program 116 times [2022-11-16 11:32:38,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:38,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962044105] [2022-11-16 11:32:38,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:38,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:32:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:39,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:32:39,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:32:39,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962044105] [2022-11-16 11:32:39,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962044105] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:32:39,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:32:39,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:32:39,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376002230] [2022-11-16 11:32:39,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:32:39,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:32:39,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:32:39,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:32:39,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:32:39,654 INFO L87 Difference]: Start difference. First operand 1513 states and 4906 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:41,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:32:41,682 INFO L93 Difference]: Finished difference Result 2748 states and 8219 transitions. [2022-11-16 11:32:41,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:32:41,682 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:32:41,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:32:41,687 INFO L225 Difference]: With dead ends: 2748 [2022-11-16 11:32:41,687 INFO L226 Difference]: Without dead ends: 2727 [2022-11-16 11:32:41,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:32:41,687 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 249 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 1270 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 1295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:32:41,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 35 Invalid, 1295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1270 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:32:41,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2727 states. [2022-11-16 11:32:41,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2727 to 1505. [2022-11-16 11:32:41,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1505 states, 1504 states have (on average 3.2513297872340425) internal successors, (4890), 1504 states have internal predecessors, (4890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:41,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 4890 transitions. [2022-11-16 11:32:41,715 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 4890 transitions. Word has length 33 [2022-11-16 11:32:41,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:32:41,715 INFO L495 AbstractCegarLoop]: Abstraction has 1505 states and 4890 transitions. [2022-11-16 11:32:41,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:41,716 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 4890 transitions. [2022-11-16 11:32:41,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:32:41,717 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:32:41,717 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:32:41,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-11-16 11:32:41,718 INFO L420 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:32:41,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:41,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1118242497, now seen corresponding path program 117 times [2022-11-16 11:32:41,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:41,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492125920] [2022-11-16 11:32:41,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:41,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:32:41,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:43,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:32:43,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:32:43,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492125920] [2022-11-16 11:32:43,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492125920] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:32:43,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:32:43,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:32:43,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937067830] [2022-11-16 11:32:43,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:32:43,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:32:43,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:32:43,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:32:43,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:32:43,009 INFO L87 Difference]: Start difference. First operand 1505 states and 4890 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:44,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:32:44,887 INFO L93 Difference]: Finished difference Result 2788 states and 8281 transitions. [2022-11-16 11:32:44,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:32:44,888 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:32:44,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:32:44,893 INFO L225 Difference]: With dead ends: 2788 [2022-11-16 11:32:44,893 INFO L226 Difference]: Without dead ends: 2777 [2022-11-16 11:32:44,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=160, Invalid=346, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:32:44,893 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 290 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 1297 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 1320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:32:44,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 43 Invalid, 1320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1297 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:32:44,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2777 states. [2022-11-16 11:32:44,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2777 to 1507. [2022-11-16 11:32:44,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1506 states have (on average 3.251660026560425) internal successors, (4897), 1506 states have internal predecessors, (4897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:44,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 4897 transitions. [2022-11-16 11:32:44,923 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 4897 transitions. Word has length 33 [2022-11-16 11:32:44,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:32:44,923 INFO L495 AbstractCegarLoop]: Abstraction has 1507 states and 4897 transitions. [2022-11-16 11:32:44,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:44,923 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 4897 transitions. [2022-11-16 11:32:44,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:32:44,925 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:32:44,925 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:32:44,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-11-16 11:32:44,925 INFO L420 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:32:44,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:44,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1571035393, now seen corresponding path program 118 times [2022-11-16 11:32:44,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:44,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137161444] [2022-11-16 11:32:44,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:44,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:32:44,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:46,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:32:46,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:32:46,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137161444] [2022-11-16 11:32:46,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137161444] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:32:46,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:32:46,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:32:46,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714404374] [2022-11-16 11:32:46,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:32:46,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:32:46,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:32:46,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:32:46,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:32:46,262 INFO L87 Difference]: Start difference. First operand 1507 states and 4897 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:48,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:32:48,222 INFO L93 Difference]: Finished difference Result 2794 states and 8291 transitions. [2022-11-16 11:32:48,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:32:48,223 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:32:48,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:32:48,228 INFO L225 Difference]: With dead ends: 2794 [2022-11-16 11:32:48,228 INFO L226 Difference]: Without dead ends: 2775 [2022-11-16 11:32:48,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=161, Invalid=345, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:32:48,228 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 312 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 1280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:32:48,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 38 Invalid, 1280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1257 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:32:48,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2775 states. [2022-11-16 11:32:48,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2775 to 1507. [2022-11-16 11:32:48,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1506 states have (on average 3.250332005312085) internal successors, (4895), 1506 states have internal predecessors, (4895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:48,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 4895 transitions. [2022-11-16 11:32:48,257 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 4895 transitions. Word has length 33 [2022-11-16 11:32:48,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:32:48,257 INFO L495 AbstractCegarLoop]: Abstraction has 1507 states and 4895 transitions. [2022-11-16 11:32:48,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:48,257 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 4895 transitions. [2022-11-16 11:32:48,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:32:48,259 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:32:48,259 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:32:48,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-11-16 11:32:48,260 INFO L420 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:32:48,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:48,260 INFO L85 PathProgramCache]: Analyzing trace with hash -644993469, now seen corresponding path program 119 times [2022-11-16 11:32:48,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:48,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395620221] [2022-11-16 11:32:48,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:48,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:32:48,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:49,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:32:49,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:32:49,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395620221] [2022-11-16 11:32:49,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395620221] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:32:49,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:32:49,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:32:49,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167416277] [2022-11-16 11:32:49,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:32:49,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:32:49,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:32:49,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:32:49,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:32:49,571 INFO L87 Difference]: Start difference. First operand 1507 states and 4895 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:51,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:32:51,399 INFO L93 Difference]: Finished difference Result 2782 states and 8268 transitions. [2022-11-16 11:32:51,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:32:51,400 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:32:51,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:32:51,406 INFO L225 Difference]: With dead ends: 2782 [2022-11-16 11:32:51,406 INFO L226 Difference]: Without dead ends: 2771 [2022-11-16 11:32:51,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:32:51,407 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 323 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 1244 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 1268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:32:51,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 38 Invalid, 1268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1244 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:32:51,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2771 states. [2022-11-16 11:32:51,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2771 to 1507. [2022-11-16 11:32:51,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1506 states have (on average 3.250332005312085) internal successors, (4895), 1506 states have internal predecessors, (4895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:51,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 4895 transitions. [2022-11-16 11:32:51,454 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 4895 transitions. Word has length 33 [2022-11-16 11:32:51,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:32:51,455 INFO L495 AbstractCegarLoop]: Abstraction has 1507 states and 4895 transitions. [2022-11-16 11:32:51,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:51,455 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 4895 transitions. [2022-11-16 11:32:51,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:32:51,457 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:32:51,457 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:32:51,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-11-16 11:32:51,458 INFO L420 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:32:51,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:51,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1728581953, now seen corresponding path program 120 times [2022-11-16 11:32:51,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:51,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814178365] [2022-11-16 11:32:51,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:51,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:32:51,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:52,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:32:52,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:32:52,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814178365] [2022-11-16 11:32:52,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814178365] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:32:52,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:32:52,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:32:52,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628244750] [2022-11-16 11:32:52,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:32:52,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:32:52,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:32:52,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:32:52,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:32:52,667 INFO L87 Difference]: Start difference. First operand 1507 states and 4895 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:54,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:32:54,592 INFO L93 Difference]: Finished difference Result 2774 states and 8261 transitions. [2022-11-16 11:32:54,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:32:54,592 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:32:54,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:32:54,597 INFO L225 Difference]: With dead ends: 2774 [2022-11-16 11:32:54,597 INFO L226 Difference]: Without dead ends: 2759 [2022-11-16 11:32:54,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:32:54,597 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 268 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 1350 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 1373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:32:54,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 33 Invalid, 1373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1350 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:32:54,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2759 states. [2022-11-16 11:32:54,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2759 to 1507. [2022-11-16 11:32:54,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1506 states have (on average 3.249003984063745) internal successors, (4893), 1506 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:54,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 4893 transitions. [2022-11-16 11:32:54,624 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 4893 transitions. Word has length 33 [2022-11-16 11:32:54,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:32:54,625 INFO L495 AbstractCegarLoop]: Abstraction has 1507 states and 4893 transitions. [2022-11-16 11:32:54,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:54,625 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 4893 transitions. [2022-11-16 11:32:54,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:32:54,627 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:32:54,627 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:32:54,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-11-16 11:32:54,627 INFO L420 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:32:54,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:54,627 INFO L85 PathProgramCache]: Analyzing trace with hash -802540029, now seen corresponding path program 121 times [2022-11-16 11:32:54,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:54,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287510489] [2022-11-16 11:32:54,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:54,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:32:54,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:55,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:32:55,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:32:55,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287510489] [2022-11-16 11:32:55,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287510489] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:32:55,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:32:55,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:32:55,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651197487] [2022-11-16 11:32:55,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:32:55,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:32:55,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:32:55,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:32:55,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:32:55,909 INFO L87 Difference]: Start difference. First operand 1507 states and 4893 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:57,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:32:57,906 INFO L93 Difference]: Finished difference Result 2786 states and 8273 transitions. [2022-11-16 11:32:57,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:32:57,907 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:32:57,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:32:57,912 INFO L225 Difference]: With dead ends: 2786 [2022-11-16 11:32:57,912 INFO L226 Difference]: Without dead ends: 2769 [2022-11-16 11:32:57,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=160, Invalid=346, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:32:57,912 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 259 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 1419 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 1442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:32:57,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 41 Invalid, 1442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1419 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:32:57,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2769 states. [2022-11-16 11:32:57,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2769 to 1511. [2022-11-16 11:32:57,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1511 states, 1510 states have (on average 3.2450331125827816) internal successors, (4900), 1510 states have internal predecessors, (4900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:57,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1511 states to 1511 states and 4900 transitions. [2022-11-16 11:32:57,940 INFO L78 Accepts]: Start accepts. Automaton has 1511 states and 4900 transitions. Word has length 33 [2022-11-16 11:32:57,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:32:57,941 INFO L495 AbstractCegarLoop]: Abstraction has 1511 states and 4900 transitions. [2022-11-16 11:32:57,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:32:57,941 INFO L276 IsEmpty]: Start isEmpty. Operand 1511 states and 4900 transitions. [2022-11-16 11:32:57,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:32:57,943 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:32:57,943 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:32:57,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-11-16 11:32:57,943 INFO L420 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:32:57,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:57,943 INFO L85 PathProgramCache]: Analyzing trace with hash 803149377, now seen corresponding path program 122 times [2022-11-16 11:32:57,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:57,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166903405] [2022-11-16 11:32:57,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:57,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:32:57,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:32:59,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:32:59,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:32:59,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166903405] [2022-11-16 11:32:59,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166903405] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:32:59,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:32:59,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:32:59,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557147294] [2022-11-16 11:32:59,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:32:59,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:32:59,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:32:59,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:32:59,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:32:59,218 INFO L87 Difference]: Start difference. First operand 1511 states and 4900 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:01,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:33:01,059 INFO L93 Difference]: Finished difference Result 2782 states and 8261 transitions. [2022-11-16 11:33:01,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:33:01,059 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:33:01,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:33:01,064 INFO L225 Difference]: With dead ends: 2782 [2022-11-16 11:33:01,064 INFO L226 Difference]: Without dead ends: 2761 [2022-11-16 11:33:01,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:33:01,065 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 274 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 1270 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 1294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:33:01,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 36 Invalid, 1294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1270 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:33:01,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2761 states. [2022-11-16 11:33:01,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2761 to 1503. [2022-11-16 11:33:01,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1503 states, 1502 states have (on average 3.248335552596538) internal successors, (4879), 1502 states have internal predecessors, (4879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:01,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 4879 transitions. [2022-11-16 11:33:01,092 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 4879 transitions. Word has length 33 [2022-11-16 11:33:01,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:33:01,092 INFO L495 AbstractCegarLoop]: Abstraction has 1503 states and 4879 transitions. [2022-11-16 11:33:01,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:01,092 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 4879 transitions. [2022-11-16 11:33:01,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:33:01,094 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:33:01,094 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:33:01,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-11-16 11:33:01,094 INFO L420 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:33:01,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:33:01,095 INFO L85 PathProgramCache]: Analyzing trace with hash 890893291, now seen corresponding path program 123 times [2022-11-16 11:33:01,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:33:01,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955531178] [2022-11-16 11:33:01,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:33:01,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:33:01,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:33:02,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:33:02,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:33:02,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955531178] [2022-11-16 11:33:02,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955531178] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:33:02,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:33:02,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:33:02,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639080539] [2022-11-16 11:33:02,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:33:02,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:33:02,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:33:02,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:33:02,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:33:02,408 INFO L87 Difference]: Start difference. First operand 1503 states and 4879 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:04,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:33:04,301 INFO L93 Difference]: Finished difference Result 2754 states and 8208 transitions. [2022-11-16 11:33:04,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:33:04,301 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:33:04,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:33:04,306 INFO L225 Difference]: With dead ends: 2754 [2022-11-16 11:33:04,306 INFO L226 Difference]: Without dead ends: 2741 [2022-11-16 11:33:04,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=160, Invalid=346, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:33:04,306 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 302 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 1226 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 1254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:33:04,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 40 Invalid, 1254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1226 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:33:04,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2741 states. [2022-11-16 11:33:04,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2741 to 1507. [2022-11-16 11:33:04,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1506 states have (on average 3.246347941567065) internal successors, (4889), 1506 states have internal predecessors, (4889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:04,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 4889 transitions. [2022-11-16 11:33:04,336 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 4889 transitions. Word has length 33 [2022-11-16 11:33:04,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:33:04,336 INFO L495 AbstractCegarLoop]: Abstraction has 1507 states and 4889 transitions. [2022-11-16 11:33:04,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:04,336 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 4889 transitions. [2022-11-16 11:33:04,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:33:04,338 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:33:04,338 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:33:04,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-11-16 11:33:04,338 INFO L420 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:33:04,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:33:04,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1704285165, now seen corresponding path program 124 times [2022-11-16 11:33:04,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:33:04,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153665421] [2022-11-16 11:33:04,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:33:04,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:33:04,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:33:06,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:33:06,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:33:06,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153665421] [2022-11-16 11:33:06,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153665421] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:33:06,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:33:06,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-11-16 11:33:06,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509792078] [2022-11-16 11:33:06,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:33:06,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 11:33:06,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:33:06,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 11:33:06,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:33:06,462 INFO L87 Difference]: Start difference. First operand 1507 states and 4889 transitions. Second operand has 18 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 17 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:08,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:33:08,724 INFO L93 Difference]: Finished difference Result 2883 states and 8794 transitions. [2022-11-16 11:33:08,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:33:08,724 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 17 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:33:08,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:33:08,730 INFO L225 Difference]: With dead ends: 2883 [2022-11-16 11:33:08,730 INFO L226 Difference]: Without dead ends: 2872 [2022-11-16 11:33:08,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=232, Invalid=580, Unknown=0, NotChecked=0, Total=812 [2022-11-16 11:33:08,730 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 512 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1320 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 1348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:33:08,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 52 Invalid, 1348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1320 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:33:08,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2872 states. [2022-11-16 11:33:08,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2872 to 1519. [2022-11-16 11:33:08,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1519 states, 1518 states have (on average 3.2444005270092227) internal successors, (4925), 1518 states have internal predecessors, (4925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:08,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 4925 transitions. [2022-11-16 11:33:08,758 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 4925 transitions. Word has length 33 [2022-11-16 11:33:08,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:33:08,758 INFO L495 AbstractCegarLoop]: Abstraction has 1519 states and 4925 transitions. [2022-11-16 11:33:08,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 17 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:08,758 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 4925 transitions. [2022-11-16 11:33:08,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:33:08,760 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:33:08,760 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:33:08,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-11-16 11:33:08,760 INFO L420 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:33:08,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:33:08,760 INFO L85 PathProgramCache]: Analyzing trace with hash -98595759, now seen corresponding path program 125 times [2022-11-16 11:33:08,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:33:08,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229348932] [2022-11-16 11:33:08,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:33:08,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:33:08,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:33:10,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:33:10,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:33:10,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229348932] [2022-11-16 11:33:10,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229348932] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:33:10,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:33:10,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:33:10,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606973818] [2022-11-16 11:33:10,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:33:10,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:33:10,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:33:10,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:33:10,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:33:10,052 INFO L87 Difference]: Start difference. First operand 1519 states and 4925 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:11,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:33:11,982 INFO L93 Difference]: Finished difference Result 2774 states and 8259 transitions. [2022-11-16 11:33:11,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:33:11,983 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:33:11,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:33:11,988 INFO L225 Difference]: With dead ends: 2774 [2022-11-16 11:33:11,988 INFO L226 Difference]: Without dead ends: 2753 [2022-11-16 11:33:11,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:33:11,988 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 293 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1299 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 1326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:33:11,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 49 Invalid, 1326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1299 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:33:11,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2753 states. [2022-11-16 11:33:12,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2753 to 1519. [2022-11-16 11:33:12,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1519 states, 1518 states have (on average 3.2430830039525693) internal successors, (4923), 1518 states have internal predecessors, (4923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:12,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 4923 transitions. [2022-11-16 11:33:12,015 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 4923 transitions. Word has length 33 [2022-11-16 11:33:12,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:33:12,015 INFO L495 AbstractCegarLoop]: Abstraction has 1519 states and 4923 transitions. [2022-11-16 11:33:12,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:12,015 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 4923 transitions. [2022-11-16 11:33:12,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:33:12,017 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:33:12,017 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:33:12,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-11-16 11:33:12,017 INFO L420 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:33:12,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:33:12,017 INFO L85 PathProgramCache]: Analyzing trace with hash 2065153193, now seen corresponding path program 126 times [2022-11-16 11:33:12,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:33:12,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113277249] [2022-11-16 11:33:12,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:33:12,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:33:12,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:33:13,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:33:13,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:33:13,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113277249] [2022-11-16 11:33:13,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113277249] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:33:13,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:33:13,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:33:13,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658859865] [2022-11-16 11:33:13,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:33:13,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:33:13,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:33:13,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:33:13,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:33:13,322 INFO L87 Difference]: Start difference. First operand 1519 states and 4923 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:15,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:33:15,225 INFO L93 Difference]: Finished difference Result 2762 states and 8234 transitions. [2022-11-16 11:33:15,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:33:15,225 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:33:15,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:33:15,230 INFO L225 Difference]: With dead ends: 2762 [2022-11-16 11:33:15,230 INFO L226 Difference]: Without dead ends: 2749 [2022-11-16 11:33:15,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:33:15,231 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 275 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 1299 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 1327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:33:15,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 42 Invalid, 1327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1299 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:33:15,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2749 states. [2022-11-16 11:33:15,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2749 to 1521. [2022-11-16 11:33:15,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1520 states have (on average 3.2407894736842104) internal successors, (4926), 1520 states have internal predecessors, (4926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:15,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 4926 transitions. [2022-11-16 11:33:15,280 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 4926 transitions. Word has length 33 [2022-11-16 11:33:15,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:33:15,280 INFO L495 AbstractCegarLoop]: Abstraction has 1521 states and 4926 transitions. [2022-11-16 11:33:15,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:15,280 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 4926 transitions. [2022-11-16 11:33:15,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:33:15,282 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:33:15,282 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:33:15,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-11-16 11:33:15,282 INFO L420 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:33:15,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:33:15,283 INFO L85 PathProgramCache]: Analyzing trace with hash 2001706067, now seen corresponding path program 127 times [2022-11-16 11:33:15,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:33:15,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326378153] [2022-11-16 11:33:15,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:33:15,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:33:15,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:33:16,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:33:16,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:33:16,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326378153] [2022-11-16 11:33:16,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326378153] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:33:16,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:33:16,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:33:16,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637793130] [2022-11-16 11:33:16,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:33:16,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:33:16,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:33:16,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:33:16,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:33:16,495 INFO L87 Difference]: Start difference. First operand 1521 states and 4926 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:18,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:33:18,488 INFO L93 Difference]: Finished difference Result 2764 states and 8238 transitions. [2022-11-16 11:33:18,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:33:18,489 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:33:18,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:33:18,494 INFO L225 Difference]: With dead ends: 2764 [2022-11-16 11:33:18,494 INFO L226 Difference]: Without dead ends: 2753 [2022-11-16 11:33:18,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:33:18,494 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 274 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 1359 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 1385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:33:18,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 40 Invalid, 1385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1359 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:33:18,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2753 states. [2022-11-16 11:33:18,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2753 to 1521. [2022-11-16 11:33:18,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1520 states have (on average 3.2407894736842104) internal successors, (4926), 1520 states have internal predecessors, (4926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:18,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 4926 transitions. [2022-11-16 11:33:18,523 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 4926 transitions. Word has length 33 [2022-11-16 11:33:18,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:33:18,523 INFO L495 AbstractCegarLoop]: Abstraction has 1521 states and 4926 transitions. [2022-11-16 11:33:18,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:18,524 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 4926 transitions. [2022-11-16 11:33:18,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:33:18,525 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:33:18,526 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:33:18,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-11-16 11:33:18,526 INFO L420 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:33:18,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:33:18,526 INFO L85 PathProgramCache]: Analyzing trace with hash 918117583, now seen corresponding path program 128 times [2022-11-16 11:33:18,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:33:18,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962783799] [2022-11-16 11:33:18,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:33:18,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:33:18,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:33:19,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:33:19,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:33:19,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962783799] [2022-11-16 11:33:19,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962783799] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:33:19,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:33:19,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:33:19,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935274907] [2022-11-16 11:33:19,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:33:19,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:33:19,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:33:19,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:33:19,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:33:19,704 INFO L87 Difference]: Start difference. First operand 1521 states and 4926 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:21,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:33:21,606 INFO L93 Difference]: Finished difference Result 2752 states and 8224 transitions. [2022-11-16 11:33:21,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:33:21,606 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:33:21,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:33:21,611 INFO L225 Difference]: With dead ends: 2752 [2022-11-16 11:33:21,611 INFO L226 Difference]: Without dead ends: 2735 [2022-11-16 11:33:21,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:33:21,611 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 243 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 1374 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 1400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:33:21,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 37 Invalid, 1400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1374 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:33:21,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2735 states. [2022-11-16 11:33:21,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2735 to 1519. [2022-11-16 11:33:21,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1519 states, 1518 states have (on average 3.240447957839262) internal successors, (4919), 1518 states have internal predecessors, (4919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:21,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 4919 transitions. [2022-11-16 11:33:21,639 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 4919 transitions. Word has length 33 [2022-11-16 11:33:21,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:33:21,639 INFO L495 AbstractCegarLoop]: Abstraction has 1519 states and 4919 transitions. [2022-11-16 11:33:21,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:21,639 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 4919 transitions. [2022-11-16 11:33:21,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:33:21,641 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:33:21,641 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:33:21,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-11-16 11:33:21,641 INFO L420 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:33:21,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:33:21,642 INFO L85 PathProgramCache]: Analyzing trace with hash 623821225, now seen corresponding path program 129 times [2022-11-16 11:33:21,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:33:21,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740058752] [2022-11-16 11:33:21,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:33:21,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:33:21,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:33:22,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:33:22,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:33:22,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740058752] [2022-11-16 11:33:22,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740058752] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:33:22,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:33:22,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:33:22,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138421724] [2022-11-16 11:33:22,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:33:22,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:33:22,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:33:22,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:33:22,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:33:22,870 INFO L87 Difference]: Start difference. First operand 1519 states and 4919 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:24,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:33:24,712 INFO L93 Difference]: Finished difference Result 2784 states and 8269 transitions. [2022-11-16 11:33:24,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:33:24,712 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:33:24,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:33:24,717 INFO L225 Difference]: With dead ends: 2784 [2022-11-16 11:33:24,717 INFO L226 Difference]: Without dead ends: 2773 [2022-11-16 11:33:24,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=160, Invalid=346, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:33:24,717 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 287 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 1297 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 1322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:33:24,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 46 Invalid, 1322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1297 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:33:24,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2773 states. [2022-11-16 11:33:24,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2773 to 1521. [2022-11-16 11:33:24,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1520 states have (on average 3.2407894736842104) internal successors, (4926), 1520 states have internal predecessors, (4926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:24,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 4926 transitions. [2022-11-16 11:33:24,746 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 4926 transitions. Word has length 33 [2022-11-16 11:33:24,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:33:24,746 INFO L495 AbstractCegarLoop]: Abstraction has 1521 states and 4926 transitions. [2022-11-16 11:33:24,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:24,746 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 4926 transitions. [2022-11-16 11:33:24,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:33:24,748 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:33:24,748 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:33:24,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-11-16 11:33:24,748 INFO L420 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:33:24,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:33:24,749 INFO L85 PathProgramCache]: Analyzing trace with hash -2065456665, now seen corresponding path program 130 times [2022-11-16 11:33:24,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:33:24,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205214690] [2022-11-16 11:33:24,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:33:24,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:33:24,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:33:25,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:33:25,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:33:25,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205214690] [2022-11-16 11:33:25,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205214690] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:33:25,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:33:25,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:33:25,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003541568] [2022-11-16 11:33:25,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:33:25,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:33:25,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:33:25,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:33:25,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:33:25,982 INFO L87 Difference]: Start difference. First operand 1521 states and 4926 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:27,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:33:27,764 INFO L93 Difference]: Finished difference Result 2790 states and 8279 transitions. [2022-11-16 11:33:27,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:33:27,764 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:33:27,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:33:27,769 INFO L225 Difference]: With dead ends: 2790 [2022-11-16 11:33:27,769 INFO L226 Difference]: Without dead ends: 2771 [2022-11-16 11:33:27,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=161, Invalid=345, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:33:27,769 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 309 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 1262 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:33:27,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 46 Invalid, 1288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1262 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-16 11:33:27,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2771 states. [2022-11-16 11:33:27,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2771 to 1521. [2022-11-16 11:33:27,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1520 states have (on average 3.2394736842105263) internal successors, (4924), 1520 states have internal predecessors, (4924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:27,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 4924 transitions. [2022-11-16 11:33:27,795 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 4924 transitions. Word has length 33 [2022-11-16 11:33:27,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:33:27,795 INFO L495 AbstractCegarLoop]: Abstraction has 1521 states and 4924 transitions. [2022-11-16 11:33:27,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:27,795 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 4924 transitions. [2022-11-16 11:33:27,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:33:27,797 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:33:27,797 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:33:27,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-11-16 11:33:27,797 INFO L420 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:33:27,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:33:27,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1139414741, now seen corresponding path program 131 times [2022-11-16 11:33:27,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:33:27,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318345606] [2022-11-16 11:33:27,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:33:27,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:33:27,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:33:29,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:33:29,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:33:29,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318345606] [2022-11-16 11:33:29,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318345606] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:33:29,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:33:29,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:33:29,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224288544] [2022-11-16 11:33:29,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:33:29,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:33:29,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:33:29,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:33:29,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:33:29,106 INFO L87 Difference]: Start difference. First operand 1521 states and 4924 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:31,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:33:31,090 INFO L93 Difference]: Finished difference Result 2788 states and 8274 transitions. [2022-11-16 11:33:31,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:33:31,090 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:33:31,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:33:31,095 INFO L225 Difference]: With dead ends: 2788 [2022-11-16 11:33:31,095 INFO L226 Difference]: Without dead ends: 2777 [2022-11-16 11:33:31,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:33:31,096 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 300 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 1249 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 1275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:33:31,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 40 Invalid, 1275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1249 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:33:31,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2777 states. [2022-11-16 11:33:31,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2777 to 1521. [2022-11-16 11:33:31,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1520 states have (on average 3.2394736842105263) internal successors, (4924), 1520 states have internal predecessors, (4924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:31,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 4924 transitions. [2022-11-16 11:33:31,123 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 4924 transitions. Word has length 33 [2022-11-16 11:33:31,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:33:31,123 INFO L495 AbstractCegarLoop]: Abstraction has 1521 states and 4924 transitions. [2022-11-16 11:33:31,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:31,124 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 4924 transitions. [2022-11-16 11:33:31,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:33:31,125 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:33:31,125 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:33:31,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-11-16 11:33:31,126 INFO L420 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:33:31,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:33:31,126 INFO L85 PathProgramCache]: Analyzing trace with hash 2071964071, now seen corresponding path program 132 times [2022-11-16 11:33:31,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:33:31,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622763005] [2022-11-16 11:33:31,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:33:31,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:33:31,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:33:32,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:33:32,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:33:32,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622763005] [2022-11-16 11:33:32,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622763005] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:33:32,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:33:32,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:33:32,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861267378] [2022-11-16 11:33:32,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:33:32,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:33:32,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:33:32,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:33:32,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:33:32,323 INFO L87 Difference]: Start difference. First operand 1521 states and 4924 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:34,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:33:34,232 INFO L93 Difference]: Finished difference Result 2790 states and 8276 transitions. [2022-11-16 11:33:34,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:33:34,232 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:33:34,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:33:34,237 INFO L225 Difference]: With dead ends: 2790 [2022-11-16 11:33:34,237 INFO L226 Difference]: Without dead ends: 2775 [2022-11-16 11:33:34,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:33:34,237 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 287 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 1335 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 1360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:33:34,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 34 Invalid, 1360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1335 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:33:34,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2775 states. [2022-11-16 11:33:34,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2775 to 1521. [2022-11-16 11:33:34,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1520 states have (on average 3.238157894736842) internal successors, (4922), 1520 states have internal predecessors, (4922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:34,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 4922 transitions. [2022-11-16 11:33:34,265 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 4922 transitions. Word has length 33 [2022-11-16 11:33:34,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:33:34,265 INFO L495 AbstractCegarLoop]: Abstraction has 1521 states and 4922 transitions. [2022-11-16 11:33:34,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:34,265 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 4922 transitions. [2022-11-16 11:33:34,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:33:34,267 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:33:34,267 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:33:34,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-11-16 11:33:34,267 INFO L420 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:33:34,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:33:34,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1296961301, now seen corresponding path program 133 times [2022-11-16 11:33:34,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:33:34,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595215490] [2022-11-16 11:33:34,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:33:34,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:33:34,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:33:35,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:33:35,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:33:35,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595215490] [2022-11-16 11:33:35,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595215490] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:33:35,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:33:35,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:33:35,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820993884] [2022-11-16 11:33:35,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:33:35,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:33:35,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:33:35,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:33:35,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:33:35,493 INFO L87 Difference]: Start difference. First operand 1521 states and 4922 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:37,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:33:37,284 INFO L93 Difference]: Finished difference Result 2768 states and 8245 transitions. [2022-11-16 11:33:37,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:33:37,284 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:33:37,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:33:37,289 INFO L225 Difference]: With dead ends: 2768 [2022-11-16 11:33:37,289 INFO L226 Difference]: Without dead ends: 2751 [2022-11-16 11:33:37,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=160, Invalid=346, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:33:37,289 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 299 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 1235 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 1261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:33:37,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 40 Invalid, 1261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1235 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:33:37,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2751 states. [2022-11-16 11:33:37,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2751 to 1525. [2022-11-16 11:33:37,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1525 states, 1524 states have (on average 3.234251968503937) internal successors, (4929), 1524 states have internal predecessors, (4929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:37,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 4929 transitions. [2022-11-16 11:33:37,316 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 4929 transitions. Word has length 33 [2022-11-16 11:33:37,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:33:37,316 INFO L495 AbstractCegarLoop]: Abstraction has 1525 states and 4929 transitions. [2022-11-16 11:33:37,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:37,316 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 4929 transitions. [2022-11-16 11:33:37,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:33:37,318 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:33:37,318 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:33:37,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2022-11-16 11:33:37,319 INFO L420 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:33:37,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:33:37,319 INFO L85 PathProgramCache]: Analyzing trace with hash 308728105, now seen corresponding path program 134 times [2022-11-16 11:33:37,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:33:37,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142384735] [2022-11-16 11:33:37,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:33:37,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:33:37,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:33:38,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:33:38,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:33:38,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142384735] [2022-11-16 11:33:38,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142384735] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:33:38,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:33:38,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:33:38,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009978599] [2022-11-16 11:33:38,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:33:38,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:33:38,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:33:38,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:33:38,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:33:38,559 INFO L87 Difference]: Start difference. First operand 1525 states and 4929 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:40,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:33:40,243 INFO L93 Difference]: Finished difference Result 2754 states and 8224 transitions. [2022-11-16 11:33:40,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:33:40,244 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:33:40,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:33:40,249 INFO L225 Difference]: With dead ends: 2754 [2022-11-16 11:33:40,249 INFO L226 Difference]: Without dead ends: 2731 [2022-11-16 11:33:40,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:33:40,249 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 257 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 1275 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 1301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:33:40,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 41 Invalid, 1301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1275 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 11:33:40,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2731 states. [2022-11-16 11:33:40,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2731 to 1515. [2022-11-16 11:33:40,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1515 states, 1514 states have (on average 3.2410832232496696) internal successors, (4907), 1514 states have internal predecessors, (4907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:40,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1515 states to 1515 states and 4907 transitions. [2022-11-16 11:33:40,278 INFO L78 Accepts]: Start accepts. Automaton has 1515 states and 4907 transitions. Word has length 33 [2022-11-16 11:33:40,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:33:40,278 INFO L495 AbstractCegarLoop]: Abstraction has 1515 states and 4907 transitions. [2022-11-16 11:33:40,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:40,278 INFO L276 IsEmpty]: Start isEmpty. Operand 1515 states and 4907 transitions. [2022-11-16 11:33:40,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:33:40,281 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:33:40,281 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:33:40,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2022-11-16 11:33:40,281 INFO L420 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:33:40,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:33:40,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1150060653, now seen corresponding path program 135 times [2022-11-16 11:33:40,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:33:40,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469160812] [2022-11-16 11:33:40,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:33:40,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:33:40,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:33:41,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:33:41,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:33:41,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469160812] [2022-11-16 11:33:41,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469160812] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:33:41,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:33:41,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:33:41,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296361829] [2022-11-16 11:33:41,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:33:41,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:33:41,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:33:41,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:33:41,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:33:41,456 INFO L87 Difference]: Start difference. First operand 1515 states and 4907 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:43,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:33:43,478 INFO L93 Difference]: Finished difference Result 2738 states and 8181 transitions. [2022-11-16 11:33:43,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:33:43,479 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:33:43,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:33:43,483 INFO L225 Difference]: With dead ends: 2738 [2022-11-16 11:33:43,483 INFO L226 Difference]: Without dead ends: 2723 [2022-11-16 11:33:43,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:33:43,484 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 263 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 1250 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 1278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:33:43,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 54 Invalid, 1278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1250 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:33:43,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2723 states. [2022-11-16 11:33:43,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2723 to 1521. [2022-11-16 11:33:43,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1520 states have (on average 3.2407894736842104) internal successors, (4926), 1520 states have internal predecessors, (4926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:43,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 4926 transitions. [2022-11-16 11:33:43,513 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 4926 transitions. Word has length 33 [2022-11-16 11:33:43,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:33:43,513 INFO L495 AbstractCegarLoop]: Abstraction has 1521 states and 4926 transitions. [2022-11-16 11:33:43,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:43,514 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 4926 transitions. [2022-11-16 11:33:43,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:33:43,516 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:33:43,516 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:33:43,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2022-11-16 11:33:43,516 INFO L420 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:33:43,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:33:43,517 INFO L85 PathProgramCache]: Analyzing trace with hash -453002977, now seen corresponding path program 136 times [2022-11-16 11:33:43,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:33:43,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614576334] [2022-11-16 11:33:43,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:33:43,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:33:43,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:33:44,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:33:44,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:33:44,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614576334] [2022-11-16 11:33:44,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614576334] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:33:44,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:33:44,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:33:44,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517117241] [2022-11-16 11:33:44,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:33:44,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:33:44,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:33:44,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:33:44,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:33:44,748 INFO L87 Difference]: Start difference. First operand 1521 states and 4926 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:46,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:33:46,764 INFO L93 Difference]: Finished difference Result 2734 states and 8171 transitions. [2022-11-16 11:33:46,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:33:46,765 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:33:46,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:33:46,770 INFO L225 Difference]: With dead ends: 2734 [2022-11-16 11:33:46,770 INFO L226 Difference]: Without dead ends: 2721 [2022-11-16 11:33:46,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:33:46,771 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 249 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 1335 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 1362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:33:46,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 60 Invalid, 1362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1335 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:33:46,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2721 states. [2022-11-16 11:33:46,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2721 to 1521. [2022-11-16 11:33:46,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1520 states have (on average 3.2394736842105263) internal successors, (4924), 1520 states have internal predecessors, (4924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:46,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 4924 transitions. [2022-11-16 11:33:46,799 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 4924 transitions. Word has length 33 [2022-11-16 11:33:46,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:33:46,799 INFO L495 AbstractCegarLoop]: Abstraction has 1521 states and 4924 transitions. [2022-11-16 11:33:46,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:46,799 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 4924 transitions. [2022-11-16 11:33:46,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:33:46,801 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:33:46,801 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:33:46,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-11-16 11:33:46,802 INFO L420 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:33:46,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:33:46,802 INFO L85 PathProgramCache]: Analyzing trace with hash -2071392761, now seen corresponding path program 137 times [2022-11-16 11:33:46,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:33:46,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193106351] [2022-11-16 11:33:46,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:33:46,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:33:46,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:33:48,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:33:48,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:33:48,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193106351] [2022-11-16 11:33:48,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193106351] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:33:48,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:33:48,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:33:48,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555838165] [2022-11-16 11:33:48,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:33:48,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:33:48,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:33:48,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:33:48,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:33:48,075 INFO L87 Difference]: Start difference. First operand 1521 states and 4924 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:49,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:33:49,991 INFO L93 Difference]: Finished difference Result 2734 states and 8169 transitions. [2022-11-16 11:33:49,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:33:49,991 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:33:49,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:33:49,996 INFO L225 Difference]: With dead ends: 2734 [2022-11-16 11:33:49,996 INFO L226 Difference]: Without dead ends: 2719 [2022-11-16 11:33:49,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:33:49,996 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 256 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1221 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 1250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:33:49,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 44 Invalid, 1250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1221 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:33:50,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2719 states. [2022-11-16 11:33:50,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2719 to 1519. [2022-11-16 11:33:50,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1519 states, 1518 states have (on average 3.240447957839262) internal successors, (4919), 1518 states have internal predecessors, (4919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:50,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 4919 transitions. [2022-11-16 11:33:50,025 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 4919 transitions. Word has length 33 [2022-11-16 11:33:50,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:33:50,025 INFO L495 AbstractCegarLoop]: Abstraction has 1519 states and 4919 transitions. [2022-11-16 11:33:50,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:50,025 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 4919 transitions. [2022-11-16 11:33:50,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:33:50,027 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:33:50,027 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:33:50,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-11-16 11:33:50,027 INFO L420 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:33:50,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:33:50,027 INFO L85 PathProgramCache]: Analyzing trace with hash -816800253, now seen corresponding path program 138 times [2022-11-16 11:33:50,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:33:50,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651627132] [2022-11-16 11:33:50,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:33:50,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:33:50,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:33:51,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:33:51,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:33:51,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651627132] [2022-11-16 11:33:51,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651627132] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:33:51,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:33:51,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:33:51,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841747145] [2022-11-16 11:33:51,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:33:51,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:33:51,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:33:51,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:33:51,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:33:51,395 INFO L87 Difference]: Start difference. First operand 1519 states and 4919 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:53,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:33:53,317 INFO L93 Difference]: Finished difference Result 2776 states and 8236 transitions. [2022-11-16 11:33:53,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:33:53,318 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:33:53,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:33:53,322 INFO L225 Difference]: With dead ends: 2776 [2022-11-16 11:33:53,322 INFO L226 Difference]: Without dead ends: 2761 [2022-11-16 11:33:53,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:33:53,323 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 309 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1239 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 1266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:33:53,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 49 Invalid, 1266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1239 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:33:53,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2761 states. [2022-11-16 11:33:53,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2761 to 1521. [2022-11-16 11:33:53,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1520 states have (on average 3.2407894736842104) internal successors, (4926), 1520 states have internal predecessors, (4926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:53,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 4926 transitions. [2022-11-16 11:33:53,351 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 4926 transitions. Word has length 33 [2022-11-16 11:33:53,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:33:53,351 INFO L495 AbstractCegarLoop]: Abstraction has 1521 states and 4926 transitions. [2022-11-16 11:33:53,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:53,352 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 4926 transitions. [2022-11-16 11:33:53,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:33:53,354 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:33:53,354 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:33:53,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-11-16 11:33:53,354 INFO L420 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:33:53,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:33:53,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1875103413, now seen corresponding path program 139 times [2022-11-16 11:33:53,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:33:53,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456885395] [2022-11-16 11:33:53,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:33:53,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:33:53,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:33:54,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:33:54,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:33:54,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456885395] [2022-11-16 11:33:54,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456885395] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:33:54,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:33:54,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:33:54,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73537573] [2022-11-16 11:33:54,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:33:54,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:33:54,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:33:54,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:33:54,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:33:54,581 INFO L87 Difference]: Start difference. First operand 1521 states and 4926 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:56,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:33:56,522 INFO L93 Difference]: Finished difference Result 2772 states and 8226 transitions. [2022-11-16 11:33:56,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:33:56,522 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:33:56,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:33:56,526 INFO L225 Difference]: With dead ends: 2772 [2022-11-16 11:33:56,526 INFO L226 Difference]: Without dead ends: 2759 [2022-11-16 11:33:56,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:33:56,527 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 306 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 1276 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 1304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:33:56,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 58 Invalid, 1304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1276 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:33:56,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2759 states. [2022-11-16 11:33:56,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2759 to 1521. [2022-11-16 11:33:56,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1520 states have (on average 3.2394736842105263) internal successors, (4924), 1520 states have internal predecessors, (4924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:56,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 4924 transitions. [2022-11-16 11:33:56,551 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 4924 transitions. Word has length 33 [2022-11-16 11:33:56,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:33:56,552 INFO L495 AbstractCegarLoop]: Abstraction has 1521 states and 4924 transitions. [2022-11-16 11:33:56,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:33:56,552 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 4924 transitions. [2022-11-16 11:33:56,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:33:56,553 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:33:56,554 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:33:56,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2022-11-16 11:33:56,554 INFO L420 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:33:56,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:33:56,554 INFO L85 PathProgramCache]: Analyzing trace with hash -48304889, now seen corresponding path program 140 times [2022-11-16 11:33:56,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:33:56,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694635147] [2022-11-16 11:33:56,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:33:56,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:33:56,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:33:58,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:33:58,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:33:58,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694635147] [2022-11-16 11:33:58,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694635147] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:33:58,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:33:58,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-16 11:33:58,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366552128] [2022-11-16 11:33:58,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:33:58,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-16 11:33:58,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:33:58,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-16 11:33:58,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-11-16 11:33:58,089 INFO L87 Difference]: Start difference. First operand 1521 states and 4924 transitions. Second operand has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:00,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:34:00,556 INFO L93 Difference]: Finished difference Result 2756 states and 8206 transitions. [2022-11-16 11:34:00,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:34:00,556 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:34:00,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:34:00,560 INFO L225 Difference]: With dead ends: 2756 [2022-11-16 11:34:00,560 INFO L226 Difference]: Without dead ends: 2741 [2022-11-16 11:34:00,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=218, Invalid=538, Unknown=0, NotChecked=0, Total=756 [2022-11-16 11:34:00,561 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 340 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1563 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 1591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:34:00,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 52 Invalid, 1591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1563 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-16 11:34:00,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2741 states. [2022-11-16 11:34:00,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2741 to 1525. [2022-11-16 11:34:00,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1525 states, 1524 states have (on average 3.2355643044619424) internal successors, (4931), 1524 states have internal predecessors, (4931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:00,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 4931 transitions. [2022-11-16 11:34:00,585 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 4931 transitions. Word has length 33 [2022-11-16 11:34:00,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:34:00,585 INFO L495 AbstractCegarLoop]: Abstraction has 1525 states and 4931 transitions. [2022-11-16 11:34:00,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:00,585 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 4931 transitions. [2022-11-16 11:34:00,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:34:00,587 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:34:00,587 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:34:00,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2022-11-16 11:34:00,587 INFO L420 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:34:00,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:34:00,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1560010293, now seen corresponding path program 141 times [2022-11-16 11:34:00,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:34:00,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125583080] [2022-11-16 11:34:00,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:34:00,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:34:00,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:34:01,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:34:01,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:34:01,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125583080] [2022-11-16 11:34:01,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125583080] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:34:01,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:34:01,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:34:01,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102391050] [2022-11-16 11:34:01,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:34:01,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:34:01,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:34:01,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:34:01,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:34:01,680 INFO L87 Difference]: Start difference. First operand 1525 states and 4931 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:03,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:34:03,551 INFO L93 Difference]: Finished difference Result 2744 states and 8189 transitions. [2022-11-16 11:34:03,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:34:03,552 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:34:03,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:34:03,557 INFO L225 Difference]: With dead ends: 2744 [2022-11-16 11:34:03,557 INFO L226 Difference]: Without dead ends: 2727 [2022-11-16 11:34:03,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:34:03,557 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 265 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1244 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 1271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:34:03,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 44 Invalid, 1271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1244 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:34:03,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2727 states. [2022-11-16 11:34:03,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2727 to 1521. [2022-11-16 11:34:03,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1520 states have (on average 3.238157894736842) internal successors, (4922), 1520 states have internal predecessors, (4922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:03,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 4922 transitions. [2022-11-16 11:34:03,587 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 4922 transitions. Word has length 33 [2022-11-16 11:34:03,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:34:03,587 INFO L495 AbstractCegarLoop]: Abstraction has 1521 states and 4922 transitions. [2022-11-16 11:34:03,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:03,587 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 4922 transitions. [2022-11-16 11:34:03,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:34:03,589 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:34:03,589 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:34:03,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2022-11-16 11:34:03,589 INFO L420 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:34:03,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:34:03,590 INFO L85 PathProgramCache]: Analyzing trace with hash 193266503, now seen corresponding path program 142 times [2022-11-16 11:34:03,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:34:03,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142802441] [2022-11-16 11:34:03,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:34:03,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:34:03,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:34:05,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:34:05,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:34:05,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142802441] [2022-11-16 11:34:05,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142802441] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:34:05,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:34:05,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:34:05,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486120222] [2022-11-16 11:34:05,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:34:05,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:34:05,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:34:05,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:34:05,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:34:05,064 INFO L87 Difference]: Start difference. First operand 1521 states and 4922 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:06,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:34:06,980 INFO L93 Difference]: Finished difference Result 2754 states and 8197 transitions. [2022-11-16 11:34:06,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:34:06,981 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:34:06,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:34:06,985 INFO L225 Difference]: With dead ends: 2754 [2022-11-16 11:34:06,985 INFO L226 Difference]: Without dead ends: 2743 [2022-11-16 11:34:06,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:34:06,986 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 282 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1278 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 1304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:34:06,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 45 Invalid, 1304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1278 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:34:06,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2743 states. [2022-11-16 11:34:07,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2743 to 1521. [2022-11-16 11:34:07,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1520 states have (on average 3.238157894736842) internal successors, (4922), 1520 states have internal predecessors, (4922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:07,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 4922 transitions. [2022-11-16 11:34:07,015 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 4922 transitions. Word has length 33 [2022-11-16 11:34:07,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:34:07,016 INFO L495 AbstractCegarLoop]: Abstraction has 1521 states and 4922 transitions. [2022-11-16 11:34:07,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:07,016 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 4922 transitions. [2022-11-16 11:34:07,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:34:07,018 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:34:07,018 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:34:07,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2022-11-16 11:34:07,018 INFO L420 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:34:07,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:34:07,018 INFO L85 PathProgramCache]: Analyzing trace with hash -890321981, now seen corresponding path program 143 times [2022-11-16 11:34:07,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:34:07,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922747257] [2022-11-16 11:34:07,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:34:07,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:34:07,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:34:08,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:34:08,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:34:08,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922747257] [2022-11-16 11:34:08,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922747257] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:34:08,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:34:08,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-16 11:34:08,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967661448] [2022-11-16 11:34:08,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:34:08,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-16 11:34:08,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:34:08,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-16 11:34:08,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-11-16 11:34:08,735 INFO L87 Difference]: Start difference. First operand 1521 states and 4922 transitions. Second operand has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:10,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:34:10,993 INFO L93 Difference]: Finished difference Result 2742 states and 8183 transitions. [2022-11-16 11:34:10,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:34:10,993 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:34:10,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:34:10,998 INFO L225 Difference]: With dead ends: 2742 [2022-11-16 11:34:10,998 INFO L226 Difference]: Without dead ends: 2725 [2022-11-16 11:34:10,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=224, Invalid=588, Unknown=0, NotChecked=0, Total=812 [2022-11-16 11:34:10,999 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 375 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 1398 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 1428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:34:10,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 30 Invalid, 1428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1398 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:34:11,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2725 states. [2022-11-16 11:34:11,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2725 to 1519. [2022-11-16 11:34:11,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1519 states, 1518 states have (on average 3.239130434782609) internal successors, (4917), 1518 states have internal predecessors, (4917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:11,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 4917 transitions. [2022-11-16 11:34:11,029 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 4917 transitions. Word has length 33 [2022-11-16 11:34:11,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:34:11,029 INFO L495 AbstractCegarLoop]: Abstraction has 1519 states and 4917 transitions. [2022-11-16 11:34:11,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:11,030 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 4917 transitions. [2022-11-16 11:34:11,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:34:11,032 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:34:11,032 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:34:11,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2022-11-16 11:34:11,032 INFO L420 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:34:11,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:34:11,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1626237877, now seen corresponding path program 144 times [2022-11-16 11:34:11,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:34:11,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833885607] [2022-11-16 11:34:11,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:34:11,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:34:11,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:34:12,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:34:12,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:34:12,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833885607] [2022-11-16 11:34:12,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833885607] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:34:12,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:34:12,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:34:12,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291091570] [2022-11-16 11:34:12,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:34:12,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:34:12,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:34:12,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:34:12,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:34:12,326 INFO L87 Difference]: Start difference. First operand 1519 states and 4917 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:14,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:34:14,275 INFO L93 Difference]: Finished difference Result 2752 states and 8191 transitions. [2022-11-16 11:34:14,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:34:14,275 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:34:14,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:34:14,280 INFO L225 Difference]: With dead ends: 2752 [2022-11-16 11:34:14,280 INFO L226 Difference]: Without dead ends: 2739 [2022-11-16 11:34:14,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:34:14,280 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 280 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1242 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 1272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:34:14,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 44 Invalid, 1272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1242 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:34:14,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2739 states. [2022-11-16 11:34:14,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2739 to 1521. [2022-11-16 11:34:14,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1520 states have (on average 3.236842105263158) internal successors, (4920), 1520 states have internal predecessors, (4920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:14,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 4920 transitions. [2022-11-16 11:34:14,309 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 4920 transitions. Word has length 33 [2022-11-16 11:34:14,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:34:14,309 INFO L495 AbstractCegarLoop]: Abstraction has 1521 states and 4920 transitions. [2022-11-16 11:34:14,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:14,309 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 4920 transitions. [2022-11-16 11:34:14,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:34:14,311 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:34:14,311 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:34:14,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2022-11-16 11:34:14,312 INFO L420 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:34:14,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:34:14,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1562790751, now seen corresponding path program 145 times [2022-11-16 11:34:14,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:34:14,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034773907] [2022-11-16 11:34:14,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:34:14,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:34:14,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:34:15,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:34:15,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:34:15,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034773907] [2022-11-16 11:34:15,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034773907] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:34:15,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:34:15,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:34:15,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730272414] [2022-11-16 11:34:15,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:34:15,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:34:15,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:34:15,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:34:15,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:34:15,844 INFO L87 Difference]: Start difference. First operand 1521 states and 4920 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:17,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:34:17,795 INFO L93 Difference]: Finished difference Result 2754 states and 8195 transitions. [2022-11-16 11:34:17,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:34:17,796 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:34:17,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:34:17,801 INFO L225 Difference]: With dead ends: 2754 [2022-11-16 11:34:17,801 INFO L226 Difference]: Without dead ends: 2743 [2022-11-16 11:34:17,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:34:17,801 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 281 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 1285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:34:17,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 42 Invalid, 1285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1257 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:34:17,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2743 states. [2022-11-16 11:34:17,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2743 to 1521. [2022-11-16 11:34:17,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1520 states have (on average 3.236842105263158) internal successors, (4920), 1520 states have internal predecessors, (4920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:17,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 4920 transitions. [2022-11-16 11:34:17,832 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 4920 transitions. Word has length 33 [2022-11-16 11:34:17,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:34:17,833 INFO L495 AbstractCegarLoop]: Abstraction has 1521 states and 4920 transitions. [2022-11-16 11:34:17,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:17,833 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 4920 transitions. [2022-11-16 11:34:17,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:34:17,835 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:34:17,835 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:34:17,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2022-11-16 11:34:17,835 INFO L420 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:34:17,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:34:17,835 INFO L85 PathProgramCache]: Analyzing trace with hash 479202267, now seen corresponding path program 146 times [2022-11-16 11:34:17,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:34:17,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69014549] [2022-11-16 11:34:17,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:34:17,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:34:17,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:34:19,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:34:19,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:34:19,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69014549] [2022-11-16 11:34:19,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69014549] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:34:19,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:34:19,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:34:19,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956522254] [2022-11-16 11:34:19,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:34:19,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:34:19,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:34:19,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:34:19,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:34:19,132 INFO L87 Difference]: Start difference. First operand 1521 states and 4920 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:21,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:34:21,003 INFO L93 Difference]: Finished difference Result 2742 states and 8181 transitions. [2022-11-16 11:34:21,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:34:21,004 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:34:21,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:34:21,009 INFO L225 Difference]: With dead ends: 2742 [2022-11-16 11:34:21,009 INFO L226 Difference]: Without dead ends: 2723 [2022-11-16 11:34:21,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:34:21,009 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 298 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 1134 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 1162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:34:21,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 32 Invalid, 1162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1134 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:34:21,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2723 states. [2022-11-16 11:34:21,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2723 to 1517. [2022-11-16 11:34:21,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1517 states, 1516 states have (on average 3.2401055408970976) internal successors, (4912), 1516 states have internal predecessors, (4912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:21,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1517 states to 1517 states and 4912 transitions. [2022-11-16 11:34:21,052 INFO L78 Accepts]: Start accepts. Automaton has 1517 states and 4912 transitions. Word has length 33 [2022-11-16 11:34:21,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:34:21,052 INFO L495 AbstractCegarLoop]: Abstraction has 1517 states and 4912 transitions. [2022-11-16 11:34:21,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:21,052 INFO L276 IsEmpty]: Start isEmpty. Operand 1517 states and 4912 transitions. [2022-11-16 11:34:21,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:34:21,055 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:34:21,055 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:34:21,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2022-11-16 11:34:21,056 INFO L420 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:34:21,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:34:21,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1577894031, now seen corresponding path program 147 times [2022-11-16 11:34:21,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:34:21,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245646120] [2022-11-16 11:34:21,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:34:21,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:34:21,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:34:22,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:34:22,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:34:22,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245646120] [2022-11-16 11:34:22,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245646120] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:34:22,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:34:22,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-16 11:34:22,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079380453] [2022-11-16 11:34:22,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:34:22,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-16 11:34:22,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:34:22,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-16 11:34:22,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-16 11:34:22,690 INFO L87 Difference]: Start difference. First operand 1517 states and 4912 transitions. Second operand has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:25,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:34:25,021 INFO L93 Difference]: Finished difference Result 2756 states and 8205 transitions. [2022-11-16 11:34:25,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:34:25,022 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:34:25,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:34:25,026 INFO L225 Difference]: With dead ends: 2756 [2022-11-16 11:34:25,027 INFO L226 Difference]: Without dead ends: 2741 [2022-11-16 11:34:25,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=220, Invalid=536, Unknown=0, NotChecked=0, Total=756 [2022-11-16 11:34:25,027 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 405 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 1264 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 1297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:34:25,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 50 Invalid, 1297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1264 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:34:25,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2741 states. [2022-11-16 11:34:25,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2741 to 1521. [2022-11-16 11:34:25,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1520 states have (on average 3.2407894736842104) internal successors, (4926), 1520 states have internal predecessors, (4926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:25,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 4926 transitions. [2022-11-16 11:34:25,076 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 4926 transitions. Word has length 33 [2022-11-16 11:34:25,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:34:25,076 INFO L495 AbstractCegarLoop]: Abstraction has 1521 states and 4926 transitions. [2022-11-16 11:34:25,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:25,076 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 4926 transitions. [2022-11-16 11:34:25,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:34:25,078 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:34:25,078 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:34:25,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2022-11-16 11:34:25,079 INFO L420 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:34:25,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:34:25,080 INFO L85 PathProgramCache]: Analyzing trace with hash -25169599, now seen corresponding path program 148 times [2022-11-16 11:34:25,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:34:25,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483012535] [2022-11-16 11:34:25,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:34:25,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:34:25,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:34:26,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:34:26,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:34:26,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483012535] [2022-11-16 11:34:26,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483012535] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:34:26,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:34:26,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:34:26,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080735046] [2022-11-16 11:34:26,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:34:26,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:34:26,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:34:26,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:34:26,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:34:26,352 INFO L87 Difference]: Start difference. First operand 1521 states and 4926 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:28,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:34:28,217 INFO L93 Difference]: Finished difference Result 2752 states and 8195 transitions. [2022-11-16 11:34:28,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:34:28,218 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:34:28,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:34:28,223 INFO L225 Difference]: With dead ends: 2752 [2022-11-16 11:34:28,223 INFO L226 Difference]: Without dead ends: 2739 [2022-11-16 11:34:28,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=164, Invalid=342, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:34:28,224 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 300 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 1170 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 1197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:34:28,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 51 Invalid, 1197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1170 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:34:28,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2739 states. [2022-11-16 11:34:28,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2739 to 1521. [2022-11-16 11:34:28,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1520 states have (on average 3.2394736842105263) internal successors, (4924), 1520 states have internal predecessors, (4924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:28,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 4924 transitions. [2022-11-16 11:34:28,264 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 4924 transitions. Word has length 33 [2022-11-16 11:34:28,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:34:28,265 INFO L495 AbstractCegarLoop]: Abstraction has 1521 states and 4924 transitions. [2022-11-16 11:34:28,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:28,265 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 4924 transitions. [2022-11-16 11:34:28,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:34:28,267 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:34:28,267 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:34:28,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2022-11-16 11:34:28,268 INFO L420 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:34:28,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:34:28,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1948577901, now seen corresponding path program 149 times [2022-11-16 11:34:28,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:34:28,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292066077] [2022-11-16 11:34:28,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:34:28,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:34:28,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:34:29,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:34:29,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:34:29,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292066077] [2022-11-16 11:34:29,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292066077] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:34:29,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:34:29,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:34:29,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154994399] [2022-11-16 11:34:29,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:34:29,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:34:29,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:34:29,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:34:29,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:34:29,494 INFO L87 Difference]: Start difference. First operand 1521 states and 4924 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:31,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:34:31,397 INFO L93 Difference]: Finished difference Result 2772 states and 8225 transitions. [2022-11-16 11:34:31,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:34:31,398 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:34:31,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:34:31,402 INFO L225 Difference]: With dead ends: 2772 [2022-11-16 11:34:31,402 INFO L226 Difference]: Without dead ends: 2757 [2022-11-16 11:34:31,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=164, Invalid=342, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:34:31,403 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 327 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 1194 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 1222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:34:31,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 48 Invalid, 1222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1194 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:34:31,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2757 states. [2022-11-16 11:34:31,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2757 to 1525. [2022-11-16 11:34:31,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1525 states, 1524 states have (on average 3.2355643044619424) internal successors, (4931), 1524 states have internal predecessors, (4931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:31,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 4931 transitions. [2022-11-16 11:34:31,436 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 4931 transitions. Word has length 33 [2022-11-16 11:34:31,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:34:31,437 INFO L495 AbstractCegarLoop]: Abstraction has 1525 states and 4931 transitions. [2022-11-16 11:34:31,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:31,437 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 4931 transitions. [2022-11-16 11:34:31,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:34:31,439 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:34:31,439 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:34:31,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2022-11-16 11:34:31,439 INFO L420 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:34:31,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:34:31,439 INFO L85 PathProgramCache]: Analyzing trace with hash -340262719, now seen corresponding path program 150 times [2022-11-16 11:34:31,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:34:31,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464764089] [2022-11-16 11:34:31,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:34:31,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:34:31,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:34:32,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:34:32,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:34:32,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464764089] [2022-11-16 11:34:32,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464764089] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:34:32,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:34:32,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:34:32,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317240993] [2022-11-16 11:34:32,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:34:32,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:34:32,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:34:32,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:34:32,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:34:32,688 INFO L87 Difference]: Start difference. First operand 1525 states and 4931 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:34,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:34:34,523 INFO L93 Difference]: Finished difference Result 2760 states and 8208 transitions. [2022-11-16 11:34:34,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:34:34,531 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:34:34,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:34:34,537 INFO L225 Difference]: With dead ends: 2760 [2022-11-16 11:34:34,538 INFO L226 Difference]: Without dead ends: 2743 [2022-11-16 11:34:34,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=164, Invalid=342, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:34:34,538 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 295 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 1159 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 1186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:34:34,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 46 Invalid, 1186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1159 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-16 11:34:34,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2743 states. [2022-11-16 11:34:34,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2743 to 1521. [2022-11-16 11:34:34,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1520 states have (on average 3.238157894736842) internal successors, (4922), 1520 states have internal predecessors, (4922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:34,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 4922 transitions. [2022-11-16 11:34:34,584 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 4922 transitions. Word has length 33 [2022-11-16 11:34:34,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:34:34,584 INFO L495 AbstractCegarLoop]: Abstraction has 1521 states and 4922 transitions. [2022-11-16 11:34:34,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:34,584 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 4922 transitions. [2022-11-16 11:34:34,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:34:34,587 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:34:34,588 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:34:34,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2022-11-16 11:34:34,588 INFO L420 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:34:34,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:34:34,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1707006509, now seen corresponding path program 151 times [2022-11-16 11:34:34,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:34:34,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140941075] [2022-11-16 11:34:34,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:34:34,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:34:34,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:34:35,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:34:35,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:34:35,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140941075] [2022-11-16 11:34:35,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140941075] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:34:35,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:34:35,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:34:35,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402003622] [2022-11-16 11:34:35,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:34:35,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:34:35,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:34:35,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:34:35,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:34:35,795 INFO L87 Difference]: Start difference. First operand 1521 states and 4922 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:37,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:34:37,676 INFO L93 Difference]: Finished difference Result 2766 states and 8209 transitions. [2022-11-16 11:34:37,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:34:37,677 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:34:37,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:34:37,681 INFO L225 Difference]: With dead ends: 2766 [2022-11-16 11:34:37,681 INFO L226 Difference]: Without dead ends: 2755 [2022-11-16 11:34:37,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=165, Invalid=341, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:34:37,682 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 318 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 1171 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:34:37,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 40 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1171 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:34:37,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2755 states. [2022-11-16 11:34:37,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2755 to 1521. [2022-11-16 11:34:37,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1520 states have (on average 3.238157894736842) internal successors, (4922), 1520 states have internal predecessors, (4922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:37,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 4922 transitions. [2022-11-16 11:34:37,712 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 4922 transitions. Word has length 33 [2022-11-16 11:34:37,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:34:37,712 INFO L495 AbstractCegarLoop]: Abstraction has 1521 states and 4922 transitions. [2022-11-16 11:34:37,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:37,712 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 4922 transitions. [2022-11-16 11:34:37,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:34:37,714 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:34:37,715 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:34:37,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2022-11-16 11:34:37,715 INFO L420 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:34:37,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:34:37,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1504372303, now seen corresponding path program 152 times [2022-11-16 11:34:37,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:34:37,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065981252] [2022-11-16 11:34:37,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:34:37,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:34:37,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:34:38,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:34:38,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:34:38,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065981252] [2022-11-16 11:34:38,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065981252] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:34:38,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:34:38,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:34:38,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078112262] [2022-11-16 11:34:38,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:34:38,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:34:38,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:34:38,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:34:38,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:34:38,894 INFO L87 Difference]: Start difference. First operand 1521 states and 4922 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:40,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:34:40,777 INFO L93 Difference]: Finished difference Result 2758 states and 8202 transitions. [2022-11-16 11:34:40,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:34:40,778 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:34:40,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:34:40,783 INFO L225 Difference]: With dead ends: 2758 [2022-11-16 11:34:40,783 INFO L226 Difference]: Without dead ends: 2741 [2022-11-16 11:34:40,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=164, Invalid=342, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:34:40,783 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 275 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 1227 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 1254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:34:40,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 42 Invalid, 1254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1227 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:34:40,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2741 states. [2022-11-16 11:34:40,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2741 to 1519. [2022-11-16 11:34:40,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1519 states, 1518 states have (on average 3.239130434782609) internal successors, (4917), 1518 states have internal predecessors, (4917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:40,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 4917 transitions. [2022-11-16 11:34:40,812 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 4917 transitions. Word has length 33 [2022-11-16 11:34:40,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:34:40,812 INFO L495 AbstractCegarLoop]: Abstraction has 1519 states and 4917 transitions. [2022-11-16 11:34:40,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:40,813 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 4917 transitions. [2022-11-16 11:34:40,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:34:40,814 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:34:40,815 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:34:40,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2022-11-16 11:34:40,815 INFO L420 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:34:40,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:34:40,815 INFO L85 PathProgramCache]: Analyzing trace with hash -465442963, now seen corresponding path program 153 times [2022-11-16 11:34:40,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:34:40,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643067769] [2022-11-16 11:34:40,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:34:40,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:34:40,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:34:42,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:34:42,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:34:42,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643067769] [2022-11-16 11:34:42,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643067769] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:34:42,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:34:42,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:34:42,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407892104] [2022-11-16 11:34:42,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:34:42,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:34:42,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:34:42,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:34:42,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:34:42,022 INFO L87 Difference]: Start difference. First operand 1519 states and 4917 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:43,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:34:43,814 INFO L93 Difference]: Finished difference Result 2732 states and 8163 transitions. [2022-11-16 11:34:43,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:34:43,814 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:34:43,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:34:43,819 INFO L225 Difference]: With dead ends: 2732 [2022-11-16 11:34:43,819 INFO L226 Difference]: Without dead ends: 2717 [2022-11-16 11:34:43,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=166, Invalid=340, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:34:43,819 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 266 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 1136 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 1165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:34:43,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 46 Invalid, 1165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1136 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-16 11:34:43,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2717 states. [2022-11-16 11:34:43,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2717 to 1527. [2022-11-16 11:34:43,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1527 states, 1526 states have (on average 3.2339449541284404) internal successors, (4935), 1526 states have internal predecessors, (4935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:43,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1527 states to 1527 states and 4935 transitions. [2022-11-16 11:34:43,847 INFO L78 Accepts]: Start accepts. Automaton has 1527 states and 4935 transitions. Word has length 33 [2022-11-16 11:34:43,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:34:43,847 INFO L495 AbstractCegarLoop]: Abstraction has 1527 states and 4935 transitions. [2022-11-16 11:34:43,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:43,847 INFO L276 IsEmpty]: Start isEmpty. Operand 1527 states and 4935 transitions. [2022-11-16 11:34:43,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:34:43,849 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:34:43,849 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:34:43,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2022-11-16 11:34:43,849 INFO L420 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:34:43,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:34:43,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1142872219, now seen corresponding path program 154 times [2022-11-16 11:34:43,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:34:43,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863935868] [2022-11-16 11:34:43,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:34:43,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:34:43,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:34:44,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:34:44,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:34:44,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863935868] [2022-11-16 11:34:44,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863935868] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:34:44,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:34:44,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:34:44,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799256547] [2022-11-16 11:34:44,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:34:44,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:34:44,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:34:44,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:34:44,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:34:44,986 INFO L87 Difference]: Start difference. First operand 1527 states and 4935 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:46,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:34:46,913 INFO L93 Difference]: Finished difference Result 2730 states and 8155 transitions. [2022-11-16 11:34:46,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:34:46,913 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:34:46,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:34:46,918 INFO L225 Difference]: With dead ends: 2730 [2022-11-16 11:34:46,918 INFO L226 Difference]: Without dead ends: 2713 [2022-11-16 11:34:46,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=166, Invalid=340, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:34:46,919 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 242 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 1321 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 1349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:34:46,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 47 Invalid, 1349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1321 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:34:46,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2713 states. [2022-11-16 11:34:46,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2713 to 1523. [2022-11-16 11:34:46,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1523 states, 1522 states have (on average 3.2352168199737186) internal successors, (4924), 1522 states have internal predecessors, (4924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:46,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1523 states to 1523 states and 4924 transitions. [2022-11-16 11:34:46,948 INFO L78 Accepts]: Start accepts. Automaton has 1523 states and 4924 transitions. Word has length 33 [2022-11-16 11:34:46,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:34:46,948 INFO L495 AbstractCegarLoop]: Abstraction has 1523 states and 4924 transitions. [2022-11-16 11:34:46,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:46,948 INFO L276 IsEmpty]: Start isEmpty. Operand 1523 states and 4924 transitions. [2022-11-16 11:34:46,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:34:46,950 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:34:46,950 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:34:46,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2022-11-16 11:34:46,951 INFO L420 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:34:46,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:34:46,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1813806321, now seen corresponding path program 155 times [2022-11-16 11:34:46,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:34:46,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380771577] [2022-11-16 11:34:46,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:34:46,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:34:47,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:34:48,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:34:48,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:34:48,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380771577] [2022-11-16 11:34:48,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380771577] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:34:48,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:34:48,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:34:48,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551778308] [2022-11-16 11:34:48,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:34:48,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:34:48,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:34:48,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:34:48,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:34:48,248 INFO L87 Difference]: Start difference. First operand 1523 states and 4924 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:50,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:34:50,151 INFO L93 Difference]: Finished difference Result 2716 states and 8135 transitions. [2022-11-16 11:34:50,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:34:50,151 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:34:50,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:34:50,156 INFO L225 Difference]: With dead ends: 2716 [2022-11-16 11:34:50,156 INFO L226 Difference]: Without dead ends: 2695 [2022-11-16 11:34:50,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=168, Invalid=338, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:34:50,157 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 228 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 1252 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 1280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:34:50,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 43 Invalid, 1280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1252 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:34:50,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2695 states. [2022-11-16 11:34:50,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2695 to 1519. [2022-11-16 11:34:50,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1519 states, 1518 states have (on average 3.237812911725955) internal successors, (4915), 1518 states have internal predecessors, (4915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:50,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 4915 transitions. [2022-11-16 11:34:50,185 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 4915 transitions. Word has length 33 [2022-11-16 11:34:50,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:34:50,186 INFO L495 AbstractCegarLoop]: Abstraction has 1519 states and 4915 transitions. [2022-11-16 11:34:50,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:50,186 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 4915 transitions. [2022-11-16 11:34:50,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:34:50,188 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:34:50,188 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:34:50,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2022-11-16 11:34:50,188 INFO L420 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:34:50,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:34:50,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1125239263, now seen corresponding path program 156 times [2022-11-16 11:34:50,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:34:50,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605561767] [2022-11-16 11:34:50,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:34:50,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:34:50,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:34:51,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:34:51,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:34:51,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605561767] [2022-11-16 11:34:51,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605561767] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:34:51,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:34:51,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:34:51,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543120594] [2022-11-16 11:34:51,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:34:51,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:34:51,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:34:51,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:34:51,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:34:51,439 INFO L87 Difference]: Start difference. First operand 1519 states and 4915 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:53,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:34:53,266 INFO L93 Difference]: Finished difference Result 2740 states and 8160 transitions. [2022-11-16 11:34:53,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:34:53,267 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:34:53,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:34:53,272 INFO L225 Difference]: With dead ends: 2740 [2022-11-16 11:34:53,272 INFO L226 Difference]: Without dead ends: 2729 [2022-11-16 11:34:53,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=167, Invalid=339, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:34:53,272 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 275 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 1177 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 1204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:34:53,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 51 Invalid, 1204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1177 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:34:53,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2729 states. [2022-11-16 11:34:53,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2729 to 1521. [2022-11-16 11:34:53,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1520 states have (on average 3.236842105263158) internal successors, (4920), 1520 states have internal predecessors, (4920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:53,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 4920 transitions. [2022-11-16 11:34:53,301 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 4920 transitions. Word has length 33 [2022-11-16 11:34:53,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:34:53,301 INFO L495 AbstractCegarLoop]: Abstraction has 1521 states and 4920 transitions. [2022-11-16 11:34:53,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:53,301 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 4920 transitions. [2022-11-16 11:34:53,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:34:53,303 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:34:53,303 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:34:53,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2022-11-16 11:34:53,303 INFO L420 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:34:53,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:34:53,304 INFO L85 PathProgramCache]: Analyzing trace with hash 41650779, now seen corresponding path program 157 times [2022-11-16 11:34:53,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:34:53,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537755820] [2022-11-16 11:34:53,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:34:53,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:34:53,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:34:54,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:34:54,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:34:54,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537755820] [2022-11-16 11:34:54,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537755820] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:34:54,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:34:54,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:34:54,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875760721] [2022-11-16 11:34:54,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:34:54,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:34:54,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:34:54,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:34:54,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:34:54,491 INFO L87 Difference]: Start difference. First operand 1521 states and 4920 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:56,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:34:56,252 INFO L93 Difference]: Finished difference Result 2742 states and 8162 transitions. [2022-11-16 11:34:56,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:34:56,252 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:34:56,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:34:56,257 INFO L225 Difference]: With dead ends: 2742 [2022-11-16 11:34:56,257 INFO L226 Difference]: Without dead ends: 2727 [2022-11-16 11:34:56,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=167, Invalid=339, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:34:56,258 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 245 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 1234 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 1260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:34:56,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 41 Invalid, 1260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1234 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-16 11:34:56,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2727 states. [2022-11-16 11:34:56,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2727 to 1519. [2022-11-16 11:34:56,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1519 states, 1518 states have (on average 3.237812911725955) internal successors, (4915), 1518 states have internal predecessors, (4915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:56,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 4915 transitions. [2022-11-16 11:34:56,286 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 4915 transitions. Word has length 33 [2022-11-16 11:34:56,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:34:56,286 INFO L495 AbstractCegarLoop]: Abstraction has 1519 states and 4915 transitions. [2022-11-16 11:34:56,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:56,286 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 4915 transitions. [2022-11-16 11:34:56,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:34:56,288 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:34:56,288 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:34:56,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2022-11-16 11:34:56,288 INFO L420 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:34:56,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:34:56,289 INFO L85 PathProgramCache]: Analyzing trace with hash -464695487, now seen corresponding path program 158 times [2022-11-16 11:34:56,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:34:56,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851354458] [2022-11-16 11:34:56,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:34:56,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:34:56,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:34:57,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:34:57,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:34:57,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851354458] [2022-11-16 11:34:57,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851354458] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:34:57,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:34:57,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:34:57,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074001189] [2022-11-16 11:34:57,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:34:57,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:34:57,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:34:57,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:34:57,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:34:57,666 INFO L87 Difference]: Start difference. First operand 1519 states and 4915 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:59,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:34:59,452 INFO L93 Difference]: Finished difference Result 2726 states and 8141 transitions. [2022-11-16 11:34:59,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:34:59,452 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:34:59,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:34:59,457 INFO L225 Difference]: With dead ends: 2726 [2022-11-16 11:34:59,457 INFO L226 Difference]: Without dead ends: 2705 [2022-11-16 11:34:59,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=170, Invalid=336, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:34:59,457 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 240 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 1196 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 1222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:34:59,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 40 Invalid, 1222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1196 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:34:59,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2705 states. [2022-11-16 11:34:59,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2705 to 1517. [2022-11-16 11:34:59,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1517 states, 1516 states have (on average 3.2387862796833775) internal successors, (4910), 1516 states have internal predecessors, (4910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:59,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1517 states to 1517 states and 4910 transitions. [2022-11-16 11:34:59,486 INFO L78 Accepts]: Start accepts. Automaton has 1517 states and 4910 transitions. Word has length 33 [2022-11-16 11:34:59,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:34:59,486 INFO L495 AbstractCegarLoop]: Abstraction has 1517 states and 4910 transitions. [2022-11-16 11:34:59,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:34:59,486 INFO L276 IsEmpty]: Start isEmpty. Operand 1517 states and 4910 transitions. [2022-11-16 11:34:59,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:34:59,488 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:34:59,488 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:34:59,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2022-11-16 11:34:59,488 INFO L420 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:34:59,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:34:59,489 INFO L85 PathProgramCache]: Analyzing trace with hash -768456407, now seen corresponding path program 159 times [2022-11-16 11:34:59,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:34:59,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851950643] [2022-11-16 11:34:59,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:34:59,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:34:59,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:00,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:35:00,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:35:00,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851950643] [2022-11-16 11:35:00,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851950643] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:35:00,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:35:00,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:35:00,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998962489] [2022-11-16 11:35:00,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:35:00,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:35:00,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:35:00,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:35:00,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:35:00,686 INFO L87 Difference]: Start difference. First operand 1517 states and 4910 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:02,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:35:02,579 INFO L93 Difference]: Finished difference Result 2728 states and 8147 transitions. [2022-11-16 11:35:02,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:35:02,580 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:35:02,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:35:02,585 INFO L225 Difference]: With dead ends: 2728 [2022-11-16 11:35:02,585 INFO L226 Difference]: Without dead ends: 2715 [2022-11-16 11:35:02,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=165, Invalid=341, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:35:02,585 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 253 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 1244 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 1274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:35:02,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 34 Invalid, 1274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1244 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:35:02,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2715 states. [2022-11-16 11:35:02,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2715 to 1521. [2022-11-16 11:35:02,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1520 states have (on average 3.235526315789474) internal successors, (4918), 1520 states have internal predecessors, (4918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:02,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 4918 transitions. [2022-11-16 11:35:02,614 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 4918 transitions. Word has length 33 [2022-11-16 11:35:02,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:35:02,615 INFO L495 AbstractCegarLoop]: Abstraction has 1521 states and 4918 transitions. [2022-11-16 11:35:02,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:02,615 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 4918 transitions. [2022-11-16 11:35:02,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:35:02,617 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:35:02,617 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:35:02,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2022-11-16 11:35:02,617 INFO L420 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:35:02,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:35:02,617 INFO L85 PathProgramCache]: Analyzing trace with hash -831903533, now seen corresponding path program 160 times [2022-11-16 11:35:02,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:35:02,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053549001] [2022-11-16 11:35:02,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:02,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:35:02,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:03,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:35:03,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:35:03,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053549001] [2022-11-16 11:35:03,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053549001] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:35:03,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:35:03,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:35:03,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210864182] [2022-11-16 11:35:03,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:35:03,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:35:03,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:35:03,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:35:03,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:35:03,899 INFO L87 Difference]: Start difference. First operand 1521 states and 4918 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:05,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:35:05,681 INFO L93 Difference]: Finished difference Result 2742 states and 8163 transitions. [2022-11-16 11:35:05,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:35:05,681 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:35:05,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:35:05,686 INFO L225 Difference]: With dead ends: 2742 [2022-11-16 11:35:05,686 INFO L226 Difference]: Without dead ends: 2731 [2022-11-16 11:35:05,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=165, Invalid=341, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:35:05,686 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 294 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 1205 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 1234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:35:05,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 36 Invalid, 1234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1205 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:35:05,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2731 states. [2022-11-16 11:35:05,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2731 to 1521. [2022-11-16 11:35:05,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1520 states have (on average 3.235526315789474) internal successors, (4918), 1520 states have internal predecessors, (4918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:05,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 4918 transitions. [2022-11-16 11:35:05,714 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 4918 transitions. Word has length 33 [2022-11-16 11:35:05,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:35:05,714 INFO L495 AbstractCegarLoop]: Abstraction has 1521 states and 4918 transitions. [2022-11-16 11:35:05,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:05,715 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 4918 transitions. [2022-11-16 11:35:05,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:35:05,716 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:35:05,717 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:35:05,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2022-11-16 11:35:05,717 INFO L420 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:35:05,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:35:05,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1915492017, now seen corresponding path program 161 times [2022-11-16 11:35:05,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:35:05,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540209989] [2022-11-16 11:35:05,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:05,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:35:05,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:06,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:35:06,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:35:06,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540209989] [2022-11-16 11:35:06,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540209989] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:35:06,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:35:06,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:35:06,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237295858] [2022-11-16 11:35:06,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:35:06,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:35:06,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:35:06,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:35:06,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:35:06,976 INFO L87 Difference]: Start difference. First operand 1521 states and 4918 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:08,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:35:08,687 INFO L93 Difference]: Finished difference Result 2730 states and 8149 transitions. [2022-11-16 11:35:08,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:35:08,687 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:35:08,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:35:08,692 INFO L225 Difference]: With dead ends: 2730 [2022-11-16 11:35:08,692 INFO L226 Difference]: Without dead ends: 2713 [2022-11-16 11:35:08,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=165, Invalid=341, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:35:08,693 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 262 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 1143 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 1172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:35:08,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 31 Invalid, 1172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1143 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-16 11:35:08,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2713 states. [2022-11-16 11:35:08,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2713 to 1519. [2022-11-16 11:35:08,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1519 states, 1518 states have (on average 3.2364953886693018) internal successors, (4913), 1518 states have internal predecessors, (4913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:08,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 4913 transitions. [2022-11-16 11:35:08,723 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 4913 transitions. Word has length 33 [2022-11-16 11:35:08,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:35:08,723 INFO L495 AbstractCegarLoop]: Abstraction has 1519 states and 4913 transitions. [2022-11-16 11:35:08,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:08,723 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 4913 transitions. [2022-11-16 11:35:08,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:35:08,725 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:35:08,725 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:35:08,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2022-11-16 11:35:08,725 INFO L420 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:35:08,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:35:08,726 INFO L85 PathProgramCache]: Analyzing trace with hash 630817991, now seen corresponding path program 162 times [2022-11-16 11:35:08,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:35:08,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331951020] [2022-11-16 11:35:08,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:08,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:35:08,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:09,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:35:09,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:35:09,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331951020] [2022-11-16 11:35:09,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331951020] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:35:09,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:35:09,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:35:09,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244839868] [2022-11-16 11:35:09,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:35:09,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:35:09,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:35:09,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:35:09,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:35:09,998 INFO L87 Difference]: Start difference. First operand 1519 states and 4913 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:11,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:35:11,764 INFO L93 Difference]: Finished difference Result 2728 states and 8146 transitions. [2022-11-16 11:35:11,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:35:11,765 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:35:11,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:35:11,770 INFO L225 Difference]: With dead ends: 2728 [2022-11-16 11:35:11,770 INFO L226 Difference]: Without dead ends: 2717 [2022-11-16 11:35:11,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=168, Invalid=338, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:35:11,770 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 257 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 1208 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 1236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:35:11,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 41 Invalid, 1236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1208 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:35:11,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2717 states. [2022-11-16 11:35:11,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2717 to 1521. [2022-11-16 11:35:11,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1520 states have (on average 3.235526315789474) internal successors, (4918), 1520 states have internal predecessors, (4918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:11,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 4918 transitions. [2022-11-16 11:35:11,798 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 4918 transitions. Word has length 33 [2022-11-16 11:35:11,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:35:11,799 INFO L495 AbstractCegarLoop]: Abstraction has 1521 states and 4918 transitions. [2022-11-16 11:35:11,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:11,799 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 4918 transitions. [2022-11-16 11:35:11,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:35:11,800 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:35:11,801 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:35:11,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2022-11-16 11:35:11,801 INFO L420 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:35:11,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:35:11,801 INFO L85 PathProgramCache]: Analyzing trace with hash -452770493, now seen corresponding path program 163 times [2022-11-16 11:35:11,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:35:11,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330230159] [2022-11-16 11:35:11,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:11,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:35:11,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:12,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:35:12,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:35:12,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330230159] [2022-11-16 11:35:12,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330230159] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:35:12,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:35:12,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:35:12,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589249525] [2022-11-16 11:35:12,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:35:12,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:35:12,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:35:12,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:35:12,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:35:12,988 INFO L87 Difference]: Start difference. First operand 1521 states and 4918 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:14,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:35:14,672 INFO L93 Difference]: Finished difference Result 2730 states and 8148 transitions. [2022-11-16 11:35:14,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:35:14,673 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:35:14,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:35:14,677 INFO L225 Difference]: With dead ends: 2730 [2022-11-16 11:35:14,677 INFO L226 Difference]: Without dead ends: 2715 [2022-11-16 11:35:14,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=168, Invalid=338, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:35:14,678 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 241 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 1144 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 1172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:35:14,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 34 Invalid, 1172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1144 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-16 11:35:14,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2715 states. [2022-11-16 11:35:14,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2715 to 1517. [2022-11-16 11:35:14,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1517 states, 1516 states have (on average 3.2387862796833775) internal successors, (4910), 1516 states have internal predecessors, (4910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:14,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1517 states to 1517 states and 4910 transitions. [2022-11-16 11:35:14,708 INFO L78 Accepts]: Start accepts. Automaton has 1517 states and 4910 transitions. Word has length 33 [2022-11-16 11:35:14,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:35:14,708 INFO L495 AbstractCegarLoop]: Abstraction has 1517 states and 4910 transitions. [2022-11-16 11:35:14,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:14,709 INFO L276 IsEmpty]: Start isEmpty. Operand 1517 states and 4910 transitions. [2022-11-16 11:35:14,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:35:14,711 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:35:14,711 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:35:14,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2022-11-16 11:35:14,711 INFO L420 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:35:14,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:35:14,711 INFO L85 PathProgramCache]: Analyzing trace with hash -959116759, now seen corresponding path program 164 times [2022-11-16 11:35:14,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:35:14,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79599071] [2022-11-16 11:35:14,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:14,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:35:14,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:15,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:35:15,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:35:15,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79599071] [2022-11-16 11:35:15,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79599071] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:35:15,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:35:15,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:35:15,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108960032] [2022-11-16 11:35:15,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:35:15,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:35:15,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:35:15,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:35:15,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:35:15,888 INFO L87 Difference]: Start difference. First operand 1517 states and 4910 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:17,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:35:17,591 INFO L93 Difference]: Finished difference Result 2714 states and 8127 transitions. [2022-11-16 11:35:17,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:35:17,592 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:35:17,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:35:17,596 INFO L225 Difference]: With dead ends: 2714 [2022-11-16 11:35:17,596 INFO L226 Difference]: Without dead ends: 2691 [2022-11-16 11:35:17,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=170, Invalid=336, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:35:17,597 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 217 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 1125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:35:17,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 35 Invalid, 1125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1097 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-16 11:35:17,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2691 states. [2022-11-16 11:35:17,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2691 to 1515. [2022-11-16 11:35:17,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1515 states, 1514 states have (on average 3.2331571994715986) internal successors, (4895), 1514 states have internal predecessors, (4895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:17,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1515 states to 1515 states and 4895 transitions. [2022-11-16 11:35:17,623 INFO L78 Accepts]: Start accepts. Automaton has 1515 states and 4895 transitions. Word has length 33 [2022-11-16 11:35:17,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:35:17,623 INFO L495 AbstractCegarLoop]: Abstraction has 1515 states and 4895 transitions. [2022-11-16 11:35:17,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:17,623 INFO L276 IsEmpty]: Start isEmpty. Operand 1515 states and 4895 transitions. [2022-11-16 11:35:17,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:35:17,625 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:35:17,625 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:35:17,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2022-11-16 11:35:17,626 INFO L420 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:35:17,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:35:17,626 INFO L85 PathProgramCache]: Analyzing trace with hash 163355205, now seen corresponding path program 165 times [2022-11-16 11:35:17,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:35:17,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081316681] [2022-11-16 11:35:17,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:17,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:35:17,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:18,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:35:18,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:35:18,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081316681] [2022-11-16 11:35:18,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081316681] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:35:18,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:35:18,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:35:18,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398977539] [2022-11-16 11:35:18,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:35:18,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:35:18,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:35:18,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:35:18,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:35:18,977 INFO L87 Difference]: Start difference. First operand 1515 states and 4895 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:21,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:35:21,148 INFO L93 Difference]: Finished difference Result 2784 states and 8272 transitions. [2022-11-16 11:35:21,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 11:35:21,148 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:35:21,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:35:21,153 INFO L225 Difference]: With dead ends: 2784 [2022-11-16 11:35:21,153 INFO L226 Difference]: Without dead ends: 2769 [2022-11-16 11:35:21,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=210, Invalid=440, Unknown=0, NotChecked=0, Total=650 [2022-11-16 11:35:21,153 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 288 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 1335 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 1362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:35:21,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 58 Invalid, 1362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1335 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:35:21,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2769 states. [2022-11-16 11:35:21,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2769 to 1521. [2022-11-16 11:35:21,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1520 states have (on average 3.236842105263158) internal successors, (4920), 1520 states have internal predecessors, (4920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:21,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 4920 transitions. [2022-11-16 11:35:21,181 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 4920 transitions. Word has length 33 [2022-11-16 11:35:21,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:35:21,181 INFO L495 AbstractCegarLoop]: Abstraction has 1521 states and 4920 transitions. [2022-11-16 11:35:21,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:21,181 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 4920 transitions. [2022-11-16 11:35:21,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:35:21,183 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:35:21,183 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:35:21,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2022-11-16 11:35:21,184 INFO L420 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:35:21,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:35:21,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1439708425, now seen corresponding path program 166 times [2022-11-16 11:35:21,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:35:21,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253587333] [2022-11-16 11:35:21,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:21,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:35:21,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:22,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:35:22,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:35:22,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253587333] [2022-11-16 11:35:22,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253587333] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:35:22,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:35:22,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:35:22,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540130754] [2022-11-16 11:35:22,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:35:22,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:35:22,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:35:22,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:35:22,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:35:22,445 INFO L87 Difference]: Start difference. First operand 1521 states and 4920 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:24,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:35:24,739 INFO L93 Difference]: Finished difference Result 2782 states and 8265 transitions. [2022-11-16 11:35:24,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 11:35:24,740 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:35:24,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:35:24,744 INFO L225 Difference]: With dead ends: 2782 [2022-11-16 11:35:24,745 INFO L226 Difference]: Without dead ends: 2769 [2022-11-16 11:35:24,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=229, Invalid=473, Unknown=0, NotChecked=0, Total=702 [2022-11-16 11:35:24,745 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 260 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 1406 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 1432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:35:24,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 57 Invalid, 1432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1406 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:35:24,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2769 states. [2022-11-16 11:35:24,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2769 to 1521. [2022-11-16 11:35:24,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1520 states have (on average 3.235526315789474) internal successors, (4918), 1520 states have internal predecessors, (4918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:24,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 4918 transitions. [2022-11-16 11:35:24,773 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 4918 transitions. Word has length 33 [2022-11-16 11:35:24,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:35:24,773 INFO L495 AbstractCegarLoop]: Abstraction has 1521 states and 4918 transitions. [2022-11-16 11:35:24,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:24,773 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 4918 transitions. [2022-11-16 11:35:24,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:35:24,775 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:35:24,775 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:35:24,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2022-11-16 11:35:24,775 INFO L420 AbstractCegarLoop]: === Iteration 176 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:35:24,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:35:24,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1599880761, now seen corresponding path program 167 times [2022-11-16 11:35:24,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:35:24,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674013795] [2022-11-16 11:35:24,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:24,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:35:24,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:25,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:35:25,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:35:25,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674013795] [2022-11-16 11:35:25,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674013795] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:35:25,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:35:25,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:35:25,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046704373] [2022-11-16 11:35:25,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:35:25,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:35:25,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:35:25,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:35:25,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:35:25,929 INFO L87 Difference]: Start difference. First operand 1521 states and 4918 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:27,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:35:28,000 INFO L93 Difference]: Finished difference Result 2790 states and 8286 transitions. [2022-11-16 11:35:28,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:35:28,000 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:35:28,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:35:28,005 INFO L225 Difference]: With dead ends: 2790 [2022-11-16 11:35:28,005 INFO L226 Difference]: Without dead ends: 2775 [2022-11-16 11:35:28,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=194, Invalid=406, Unknown=0, NotChecked=0, Total=600 [2022-11-16 11:35:28,005 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 312 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1260 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 1287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:35:28,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 45 Invalid, 1287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1260 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:35:28,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2775 states. [2022-11-16 11:35:28,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2775 to 1527. [2022-11-16 11:35:28,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1527 states, 1526 states have (on average 3.230013106159895) internal successors, (4929), 1526 states have internal predecessors, (4929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:28,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1527 states to 1527 states and 4929 transitions. [2022-11-16 11:35:28,034 INFO L78 Accepts]: Start accepts. Automaton has 1527 states and 4929 transitions. Word has length 33 [2022-11-16 11:35:28,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:35:28,034 INFO L495 AbstractCegarLoop]: Abstraction has 1527 states and 4929 transitions. [2022-11-16 11:35:28,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:28,034 INFO L276 IsEmpty]: Start isEmpty. Operand 1527 states and 4929 transitions. [2022-11-16 11:35:28,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:35:28,036 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:35:28,036 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:35:28,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2022-11-16 11:35:28,037 INFO L420 AbstractCegarLoop]: === Iteration 177 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:35:28,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:35:28,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1597254985, now seen corresponding path program 168 times [2022-11-16 11:35:28,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:35:28,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631763357] [2022-11-16 11:35:28,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:28,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:35:28,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:29,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:35:29,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:35:29,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631763357] [2022-11-16 11:35:29,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631763357] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:35:29,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:35:29,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-16 11:35:29,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717959332] [2022-11-16 11:35:29,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:35:29,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-16 11:35:29,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:35:29,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-16 11:35:29,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-11-16 11:35:29,808 INFO L87 Difference]: Start difference. First operand 1527 states and 4929 transitions. Second operand has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:32,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:35:32,575 INFO L93 Difference]: Finished difference Result 2792 states and 8284 transitions. [2022-11-16 11:35:32,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 11:35:32,576 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:35:32,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:35:32,581 INFO L225 Difference]: With dead ends: 2792 [2022-11-16 11:35:32,581 INFO L226 Difference]: Without dead ends: 2769 [2022-11-16 11:35:32,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=256, Invalid=614, Unknown=0, NotChecked=0, Total=870 [2022-11-16 11:35:32,581 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 393 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1600 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 1631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:35:32,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [393 Valid, 49 Invalid, 1631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1600 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-16 11:35:32,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2769 states. [2022-11-16 11:35:32,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2769 to 1521. [2022-11-16 11:35:32,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1520 states have (on average 3.2342105263157896) internal successors, (4916), 1520 states have internal predecessors, (4916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:32,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 4916 transitions. [2022-11-16 11:35:32,610 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 4916 transitions. Word has length 33 [2022-11-16 11:35:32,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:35:32,611 INFO L495 AbstractCegarLoop]: Abstraction has 1521 states and 4916 transitions. [2022-11-16 11:35:32,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:32,611 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 4916 transitions. [2022-11-16 11:35:32,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:35:32,613 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:35:32,613 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:35:32,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2022-11-16 11:35:32,613 INFO L420 AbstractCegarLoop]: === Iteration 178 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:35:32,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:35:32,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1358309369, now seen corresponding path program 169 times [2022-11-16 11:35:32,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:35:32,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677971312] [2022-11-16 11:35:32,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:32,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:35:32,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:33,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:35:33,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:35:33,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677971312] [2022-11-16 11:35:33,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677971312] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:35:33,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:35:33,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:35:33,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556160809] [2022-11-16 11:35:33,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:35:33,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:35:33,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:35:33,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:35:33,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:35:33,828 INFO L87 Difference]: Start difference. First operand 1521 states and 4916 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:35,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:35:35,956 INFO L93 Difference]: Finished difference Result 2784 states and 8267 transitions. [2022-11-16 11:35:35,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 11:35:35,956 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:35:35,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:35:35,961 INFO L225 Difference]: With dead ends: 2784 [2022-11-16 11:35:35,961 INFO L226 Difference]: Without dead ends: 2773 [2022-11-16 11:35:35,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=230, Invalid=472, Unknown=0, NotChecked=0, Total=702 [2022-11-16 11:35:35,962 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 300 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 1203 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 1230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:35:35,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 50 Invalid, 1230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1203 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:35:35,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2773 states. [2022-11-16 11:35:35,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2773 to 1519. [2022-11-16 11:35:35,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1519 states, 1518 states have (on average 3.2364953886693018) internal successors, (4913), 1518 states have internal predecessors, (4913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:35,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 4913 transitions. [2022-11-16 11:35:35,996 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 4913 transitions. Word has length 33 [2022-11-16 11:35:35,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:35:35,996 INFO L495 AbstractCegarLoop]: Abstraction has 1519 states and 4913 transitions. [2022-11-16 11:35:35,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:35,996 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 4913 transitions. [2022-11-16 11:35:35,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:35:35,998 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:35:35,998 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:35:35,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2022-11-16 11:35:35,998 INFO L420 AbstractCegarLoop]: === Iteration 179 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:35:35,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:35:35,998 INFO L85 PathProgramCache]: Analyzing trace with hash 247380037, now seen corresponding path program 170 times [2022-11-16 11:35:35,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:35:35,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732689982] [2022-11-16 11:35:35,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:35,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:35:36,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:37,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:35:37,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:35:37,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732689982] [2022-11-16 11:35:37,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732689982] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:35:37,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:35:37,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:35:37,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716367923] [2022-11-16 11:35:37,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:35:37,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:35:37,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:35:37,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:35:37,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:35:37,046 INFO L87 Difference]: Start difference. First operand 1519 states and 4913 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:39,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:35:39,272 INFO L93 Difference]: Finished difference Result 2788 states and 8274 transitions. [2022-11-16 11:35:39,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 11:35:39,273 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:35:39,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:35:39,277 INFO L225 Difference]: With dead ends: 2788 [2022-11-16 11:35:39,278 INFO L226 Difference]: Without dead ends: 2767 [2022-11-16 11:35:39,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=212, Invalid=438, Unknown=0, NotChecked=0, Total=650 [2022-11-16 11:35:39,278 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 294 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 1253 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 1280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:35:39,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 48 Invalid, 1280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1253 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:35:39,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2767 states. [2022-11-16 11:35:39,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2767 to 1519. [2022-11-16 11:35:39,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1519 states, 1518 states have (on average 3.2351778656126484) internal successors, (4911), 1518 states have internal predecessors, (4911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:39,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 4911 transitions. [2022-11-16 11:35:39,306 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 4911 transitions. Word has length 33 [2022-11-16 11:35:39,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:35:39,306 INFO L495 AbstractCegarLoop]: Abstraction has 1519 states and 4911 transitions. [2022-11-16 11:35:39,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:39,306 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 4911 transitions. [2022-11-16 11:35:39,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:35:39,308 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:35:39,308 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:35:39,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2022-11-16 11:35:39,308 INFO L420 AbstractCegarLoop]: === Iteration 180 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:35:39,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:35:39,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1337615107, now seen corresponding path program 171 times [2022-11-16 11:35:39,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:35:39,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374555039] [2022-11-16 11:35:39,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:39,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:35:39,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:40,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:35:40,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:35:40,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374555039] [2022-11-16 11:35:40,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374555039] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:35:40,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:35:40,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:35:40,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354314853] [2022-11-16 11:35:40,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:35:40,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:35:40,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:35:40,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:35:40,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:35:40,446 INFO L87 Difference]: Start difference. First operand 1519 states and 4911 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:42,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:35:42,529 INFO L93 Difference]: Finished difference Result 2808 states and 8308 transitions. [2022-11-16 11:35:42,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:35:42,530 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:35:42,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:35:42,534 INFO L225 Difference]: With dead ends: 2808 [2022-11-16 11:35:42,534 INFO L226 Difference]: Without dead ends: 2793 [2022-11-16 11:35:42,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=176, Invalid=376, Unknown=0, NotChecked=0, Total=552 [2022-11-16 11:35:42,535 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 310 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1305 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 1331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:35:42,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 49 Invalid, 1331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1305 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:35:42,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2793 states. [2022-11-16 11:35:42,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2793 to 1521. [2022-11-16 11:35:42,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1520 states have (on average 3.235526315789474) internal successors, (4918), 1520 states have internal predecessors, (4918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:42,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 4918 transitions. [2022-11-16 11:35:42,594 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 4918 transitions. Word has length 33 [2022-11-16 11:35:42,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:35:42,594 INFO L495 AbstractCegarLoop]: Abstraction has 1521 states and 4918 transitions. [2022-11-16 11:35:42,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:42,594 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 4918 transitions. [2022-11-16 11:35:42,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:35:42,596 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:35:42,596 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:35:42,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2022-11-16 11:35:42,597 INFO L420 AbstractCegarLoop]: === Iteration 181 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:35:42,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:35:42,598 INFO L85 PathProgramCache]: Analyzing trace with hash -265448523, now seen corresponding path program 172 times [2022-11-16 11:35:42,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:35:42,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832661964] [2022-11-16 11:35:42,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:42,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:35:42,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:43,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:35:43,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:35:43,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832661964] [2022-11-16 11:35:43,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832661964] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:35:43,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:35:43,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:35:43,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948461773] [2022-11-16 11:35:43,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:35:43,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:35:43,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:35:43,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:35:43,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:35:43,810 INFO L87 Difference]: Start difference. First operand 1521 states and 4918 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:45,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:35:45,787 INFO L93 Difference]: Finished difference Result 2804 states and 8298 transitions. [2022-11-16 11:35:45,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:35:45,788 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:35:45,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:35:45,793 INFO L225 Difference]: With dead ends: 2804 [2022-11-16 11:35:45,793 INFO L226 Difference]: Without dead ends: 2791 [2022-11-16 11:35:45,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=176, Invalid=376, Unknown=0, NotChecked=0, Total=552 [2022-11-16 11:35:45,793 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 325 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 1264 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 1291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:35:45,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 54 Invalid, 1291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1264 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:35:45,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2791 states. [2022-11-16 11:35:45,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2791 to 1521. [2022-11-16 11:35:45,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1520 states have (on average 3.2342105263157896) internal successors, (4916), 1520 states have internal predecessors, (4916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:45,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 4916 transitions. [2022-11-16 11:35:45,823 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 4916 transitions. Word has length 33 [2022-11-16 11:35:45,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:35:45,823 INFO L495 AbstractCegarLoop]: Abstraction has 1521 states and 4916 transitions. [2022-11-16 11:35:45,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:45,824 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 4916 transitions. [2022-11-16 11:35:45,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:35:45,826 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:35:45,826 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:35:45,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2022-11-16 11:35:45,826 INFO L420 AbstractCegarLoop]: === Iteration 182 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:35:45,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:35:45,826 INFO L85 PathProgramCache]: Analyzing trace with hash 2106110471, now seen corresponding path program 173 times [2022-11-16 11:35:45,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:35:45,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275778067] [2022-11-16 11:35:45,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:45,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:35:45,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:47,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:35:47,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:35:47,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275778067] [2022-11-16 11:35:47,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275778067] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:35:47,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:35:47,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:35:47,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353708869] [2022-11-16 11:35:47,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:35:47,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:35:47,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:35:47,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:35:47,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:35:47,063 INFO L87 Difference]: Start difference. First operand 1521 states and 4916 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:49,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:35:49,032 INFO L93 Difference]: Finished difference Result 2806 states and 8305 transitions. [2022-11-16 11:35:49,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:35:49,033 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:35:49,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:35:49,038 INFO L225 Difference]: With dead ends: 2806 [2022-11-16 11:35:49,038 INFO L226 Difference]: Without dead ends: 2791 [2022-11-16 11:35:49,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=176, Invalid=376, Unknown=0, NotChecked=0, Total=552 [2022-11-16 11:35:49,038 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 337 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1239 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 1265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:35:49,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 45 Invalid, 1265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1239 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:35:49,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2791 states. [2022-11-16 11:35:49,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2791 to 1525. [2022-11-16 11:35:49,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1525 states, 1524 states have (on average 3.2303149606299213) internal successors, (4923), 1524 states have internal predecessors, (4923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:49,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 4923 transitions. [2022-11-16 11:35:49,067 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 4923 transitions. Word has length 33 [2022-11-16 11:35:49,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:35:49,068 INFO L495 AbstractCegarLoop]: Abstraction has 1525 states and 4923 transitions. [2022-11-16 11:35:49,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:49,068 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 4923 transitions. [2022-11-16 11:35:49,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:35:49,071 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:35:49,071 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:35:49,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2022-11-16 11:35:49,072 INFO L420 AbstractCegarLoop]: === Iteration 183 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:35:49,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:35:49,072 INFO L85 PathProgramCache]: Analyzing trace with hash -580541643, now seen corresponding path program 174 times [2022-11-16 11:35:49,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:35:49,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278065577] [2022-11-16 11:35:49,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:49,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:35:49,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:50,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:35:50,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:35:50,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278065577] [2022-11-16 11:35:50,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278065577] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:35:50,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:35:50,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:35:50,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847487561] [2022-11-16 11:35:50,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:35:50,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:35:50,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:35:50,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:35:50,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:35:50,387 INFO L87 Difference]: Start difference. First operand 1525 states and 4923 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:52,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:35:52,387 INFO L93 Difference]: Finished difference Result 2794 states and 8288 transitions. [2022-11-16 11:35:52,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:35:52,387 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:35:52,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:35:52,392 INFO L225 Difference]: With dead ends: 2794 [2022-11-16 11:35:52,392 INFO L226 Difference]: Without dead ends: 2777 [2022-11-16 11:35:52,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=177, Invalid=375, Unknown=0, NotChecked=0, Total=552 [2022-11-16 11:35:52,393 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 261 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 1291 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 1316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:35:52,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 42 Invalid, 1316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1291 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:35:52,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2777 states. [2022-11-16 11:35:52,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2777 to 1521. [2022-11-16 11:35:52,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1520 states have (on average 3.232894736842105) internal successors, (4914), 1520 states have internal predecessors, (4914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:52,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 4914 transitions. [2022-11-16 11:35:52,422 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 4914 transitions. Word has length 33 [2022-11-16 11:35:52,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:35:52,422 INFO L495 AbstractCegarLoop]: Abstraction has 1521 states and 4914 transitions. [2022-11-16 11:35:52,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:52,422 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 4914 transitions. [2022-11-16 11:35:52,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:35:52,424 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:35:52,424 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:35:52,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2022-11-16 11:35:52,424 INFO L420 AbstractCegarLoop]: === Iteration 184 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:35:52,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:35:52,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1947285433, now seen corresponding path program 175 times [2022-11-16 11:35:52,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:35:52,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274193146] [2022-11-16 11:35:52,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:52,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:35:52,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:53,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:35:53,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:35:53,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274193146] [2022-11-16 11:35:53,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274193146] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:35:53,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:35:53,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:35:53,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748458294] [2022-11-16 11:35:53,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:35:53,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:35:53,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:35:53,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:35:53,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:35:53,655 INFO L87 Difference]: Start difference. First operand 1521 states and 4914 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:55,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:35:55,655 INFO L93 Difference]: Finished difference Result 2800 states and 8289 transitions. [2022-11-16 11:35:55,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:35:55,656 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:35:55,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:35:55,660 INFO L225 Difference]: With dead ends: 2800 [2022-11-16 11:35:55,660 INFO L226 Difference]: Without dead ends: 2789 [2022-11-16 11:35:55,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=177, Invalid=375, Unknown=0, NotChecked=0, Total=552 [2022-11-16 11:35:55,661 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 340 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 1146 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 1172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:35:55,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 39 Invalid, 1172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1146 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:35:55,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2789 states. [2022-11-16 11:35:55,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2789 to 1521. [2022-11-16 11:35:55,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1520 states have (on average 3.232894736842105) internal successors, (4914), 1520 states have internal predecessors, (4914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:55,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 4914 transitions. [2022-11-16 11:35:55,704 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 4914 transitions. Word has length 33 [2022-11-16 11:35:55,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:35:55,704 INFO L495 AbstractCegarLoop]: Abstraction has 1521 states and 4914 transitions. [2022-11-16 11:35:55,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:55,705 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 4914 transitions. [2022-11-16 11:35:55,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:35:55,708 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:35:55,708 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:35:55,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2022-11-16 11:35:55,708 INFO L420 AbstractCegarLoop]: === Iteration 185 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:35:55,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:35:55,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1264093379, now seen corresponding path program 176 times [2022-11-16 11:35:55,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:35:55,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001240967] [2022-11-16 11:35:55,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:55,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:35:55,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:35:57,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:35:57,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:35:57,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001240967] [2022-11-16 11:35:57,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001240967] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:35:57,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:35:57,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:35:57,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611843248] [2022-11-16 11:35:57,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:35:57,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:35:57,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:35:57,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:35:57,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:35:57,060 INFO L87 Difference]: Start difference. First operand 1521 states and 4914 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:58,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:35:58,985 INFO L93 Difference]: Finished difference Result 2792 states and 8282 transitions. [2022-11-16 11:35:58,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:35:58,985 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:35:58,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:35:58,990 INFO L225 Difference]: With dead ends: 2792 [2022-11-16 11:35:58,990 INFO L226 Difference]: Without dead ends: 2775 [2022-11-16 11:35:58,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=177, Invalid=375, Unknown=0, NotChecked=0, Total=552 [2022-11-16 11:35:58,991 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 294 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 1181 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 1207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:35:58,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 36 Invalid, 1207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1181 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:35:58,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2775 states. [2022-11-16 11:35:59,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2775 to 1519. [2022-11-16 11:35:59,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1519 states, 1518 states have (on average 3.2338603425559946) internal successors, (4909), 1518 states have internal predecessors, (4909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:59,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 4909 transitions. [2022-11-16 11:35:59,019 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 4909 transitions. Word has length 33 [2022-11-16 11:35:59,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:35:59,019 INFO L495 AbstractCegarLoop]: Abstraction has 1519 states and 4909 transitions. [2022-11-16 11:35:59,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:35:59,019 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 4909 transitions. [2022-11-16 11:35:59,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:35:59,021 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:35:59,021 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:35:59,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2022-11-16 11:35:59,021 INFO L420 AbstractCegarLoop]: === Iteration 186 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:35:59,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:35:59,022 INFO L85 PathProgramCache]: Analyzing trace with hash 748639043, now seen corresponding path program 177 times [2022-11-16 11:35:59,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:35:59,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530242200] [2022-11-16 11:35:59,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:35:59,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:35:59,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:00,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:36:00,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:00,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530242200] [2022-11-16 11:36:00,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530242200] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:00,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:36:00,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:36:00,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930548210] [2022-11-16 11:36:00,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:00,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:36:00,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:00,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:36:00,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:36:00,169 INFO L87 Difference]: Start difference. First operand 1519 states and 4909 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:02,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:36:02,087 INFO L93 Difference]: Finished difference Result 2828 states and 8356 transitions. [2022-11-16 11:36:02,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:36:02,088 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:36:02,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:36:02,093 INFO L225 Difference]: With dead ends: 2828 [2022-11-16 11:36:02,093 INFO L226 Difference]: Without dead ends: 2813 [2022-11-16 11:36:02,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=177, Invalid=375, Unknown=0, NotChecked=0, Total=552 [2022-11-16 11:36:02,093 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 382 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 1150 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 1177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:36:02,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 35 Invalid, 1177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1150 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-16 11:36:02,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2813 states. [2022-11-16 11:36:02,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2813 to 1529. [2022-11-16 11:36:02,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1529 states, 1528 states have (on average 3.2297120418848166) internal successors, (4935), 1528 states have internal predecessors, (4935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:02,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1529 states to 1529 states and 4935 transitions. [2022-11-16 11:36:02,122 INFO L78 Accepts]: Start accepts. Automaton has 1529 states and 4935 transitions. Word has length 33 [2022-11-16 11:36:02,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:36:02,122 INFO L495 AbstractCegarLoop]: Abstraction has 1529 states and 4935 transitions. [2022-11-16 11:36:02,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:02,123 INFO L276 IsEmpty]: Start isEmpty. Operand 1529 states and 4935 transitions. [2022-11-16 11:36:02,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:36:02,124 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:36:02,124 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:02,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2022-11-16 11:36:02,125 INFO L420 AbstractCegarLoop]: === Iteration 187 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:36:02,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:02,125 INFO L85 PathProgramCache]: Analyzing trace with hash 751264819, now seen corresponding path program 178 times [2022-11-16 11:36:02,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:02,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812858792] [2022-11-16 11:36:02,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:02,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:02,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:03,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:36:03,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:03,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812858792] [2022-11-16 11:36:03,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812858792] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:03,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:36:03,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:36:03,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608994835] [2022-11-16 11:36:03,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:03,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:36:03,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:03,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:36:03,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:36:03,347 INFO L87 Difference]: Start difference. First operand 1529 states and 4935 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:05,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:36:05,368 INFO L93 Difference]: Finished difference Result 2830 states and 8354 transitions. [2022-11-16 11:36:05,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:36:05,369 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:36:05,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:36:05,373 INFO L225 Difference]: With dead ends: 2830 [2022-11-16 11:36:05,373 INFO L226 Difference]: Without dead ends: 2807 [2022-11-16 11:36:05,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=178, Invalid=374, Unknown=0, NotChecked=0, Total=552 [2022-11-16 11:36:05,374 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 300 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 1359 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 1385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:36:05,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 41 Invalid, 1385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1359 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:36:05,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2807 states. [2022-11-16 11:36:05,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2807 to 1523. [2022-11-16 11:36:05,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1523 states, 1522 states have (on average 3.2325886990801576) internal successors, (4920), 1522 states have internal predecessors, (4920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:05,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1523 states to 1523 states and 4920 transitions. [2022-11-16 11:36:05,402 INFO L78 Accepts]: Start accepts. Automaton has 1523 states and 4920 transitions. Word has length 33 [2022-11-16 11:36:05,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:36:05,402 INFO L495 AbstractCegarLoop]: Abstraction has 1523 states and 4920 transitions. [2022-11-16 11:36:05,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:05,402 INFO L276 IsEmpty]: Start isEmpty. Operand 1523 states and 4920 transitions. [2022-11-16 11:36:05,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:36:05,404 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:36:05,404 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:05,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2022-11-16 11:36:05,404 INFO L420 AbstractCegarLoop]: === Iteration 188 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:36:05,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:05,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1014596923, now seen corresponding path program 179 times [2022-11-16 11:36:05,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:05,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430274279] [2022-11-16 11:36:05,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:05,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:05,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:06,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:36:06,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:06,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430274279] [2022-11-16 11:36:06,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430274279] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:06,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:36:06,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:36:06,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151752864] [2022-11-16 11:36:06,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:06,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:36:06,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:06,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:36:06,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:36:06,605 INFO L87 Difference]: Start difference. First operand 1523 states and 4920 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:08,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:36:08,570 INFO L93 Difference]: Finished difference Result 2816 states and 8327 transitions. [2022-11-16 11:36:08,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:36:08,570 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:36:08,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:36:08,575 INFO L225 Difference]: With dead ends: 2816 [2022-11-16 11:36:08,575 INFO L226 Difference]: Without dead ends: 2801 [2022-11-16 11:36:08,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=176, Invalid=376, Unknown=0, NotChecked=0, Total=552 [2022-11-16 11:36:08,576 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 313 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1261 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 1287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:36:08,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 44 Invalid, 1287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1261 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:36:08,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2801 states. [2022-11-16 11:36:08,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2801 to 1527. [2022-11-16 11:36:08,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1527 states, 1526 states have (on average 3.22870249017038) internal successors, (4927), 1526 states have internal predecessors, (4927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:08,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1527 states to 1527 states and 4927 transitions. [2022-11-16 11:36:08,604 INFO L78 Accepts]: Start accepts. Automaton has 1527 states and 4927 transitions. Word has length 33 [2022-11-16 11:36:08,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:36:08,604 INFO L495 AbstractCegarLoop]: Abstraction has 1527 states and 4927 transitions. [2022-11-16 11:36:08,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:08,605 INFO L276 IsEmpty]: Start isEmpty. Operand 1527 states and 4927 transitions. [2022-11-16 11:36:08,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:36:08,607 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:36:08,607 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:08,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2022-11-16 11:36:08,607 INFO L420 AbstractCegarLoop]: === Iteration 189 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:36:08,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:08,607 INFO L85 PathProgramCache]: Analyzing trace with hash 593718259, now seen corresponding path program 180 times [2022-11-16 11:36:08,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:08,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379241787] [2022-11-16 11:36:08,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:08,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:08,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:09,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:36:09,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:09,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379241787] [2022-11-16 11:36:09,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379241787] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:09,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:36:09,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:36:09,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609634803] [2022-11-16 11:36:09,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:09,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:36:09,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:09,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:36:09,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:36:09,836 INFO L87 Difference]: Start difference. First operand 1527 states and 4927 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:11,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:36:11,882 INFO L93 Difference]: Finished difference Result 2804 states and 8310 transitions. [2022-11-16 11:36:11,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:36:11,883 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:36:11,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:36:11,887 INFO L225 Difference]: With dead ends: 2804 [2022-11-16 11:36:11,888 INFO L226 Difference]: Without dead ends: 2787 [2022-11-16 11:36:11,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=177, Invalid=375, Unknown=0, NotChecked=0, Total=552 [2022-11-16 11:36:11,888 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 263 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1383 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 1408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:36:11,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 45 Invalid, 1408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1383 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:36:11,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2787 states. [2022-11-16 11:36:11,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2787 to 1523. [2022-11-16 11:36:11,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1523 states, 1522 states have (on average 3.2299605781865965) internal successors, (4916), 1522 states have internal predecessors, (4916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:11,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1523 states to 1523 states and 4916 transitions. [2022-11-16 11:36:11,916 INFO L78 Accepts]: Start accepts. Automaton has 1523 states and 4916 transitions. Word has length 33 [2022-11-16 11:36:11,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:36:11,916 INFO L495 AbstractCegarLoop]: Abstraction has 1523 states and 4916 transitions. [2022-11-16 11:36:11,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:11,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1523 states and 4916 transitions. [2022-11-16 11:36:11,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:36:11,918 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:36:11,918 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:11,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2022-11-16 11:36:11,918 INFO L420 AbstractCegarLoop]: === Iteration 190 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:36:11,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:11,918 INFO L85 PathProgramCache]: Analyzing trace with hash -930572091, now seen corresponding path program 181 times [2022-11-16 11:36:11,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:11,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985737993] [2022-11-16 11:36:11,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:11,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:11,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:13,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:36:13,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:13,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985737993] [2022-11-16 11:36:13,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985737993] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:13,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:36:13,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:36:13,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698680468] [2022-11-16 11:36:13,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:13,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:36:13,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:13,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:36:13,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:36:13,156 INFO L87 Difference]: Start difference. First operand 1523 states and 4916 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:15,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:36:15,074 INFO L93 Difference]: Finished difference Result 2818 states and 8327 transitions. [2022-11-16 11:36:15,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:36:15,075 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:36:15,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:36:15,080 INFO L225 Difference]: With dead ends: 2818 [2022-11-16 11:36:15,080 INFO L226 Difference]: Without dead ends: 2801 [2022-11-16 11:36:15,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=178, Invalid=374, Unknown=0, NotChecked=0, Total=552 [2022-11-16 11:36:15,080 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 311 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 1181 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 1207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:36:15,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 40 Invalid, 1207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1181 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:36:15,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2801 states. [2022-11-16 11:36:15,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2801 to 1527. [2022-11-16 11:36:15,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1527 states, 1526 states have (on average 3.22608125819135) internal successors, (4923), 1526 states have internal predecessors, (4923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:15,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1527 states to 1527 states and 4923 transitions. [2022-11-16 11:36:15,109 INFO L78 Accepts]: Start accepts. Automaton has 1527 states and 4923 transitions. Word has length 33 [2022-11-16 11:36:15,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:36:15,109 INFO L495 AbstractCegarLoop]: Abstraction has 1527 states and 4923 transitions. [2022-11-16 11:36:15,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:15,109 INFO L276 IsEmpty]: Start isEmpty. Operand 1527 states and 4923 transitions. [2022-11-16 11:36:15,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:36:15,112 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:36:15,112 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:15,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2022-11-16 11:36:15,112 INFO L420 AbstractCegarLoop]: === Iteration 191 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:36:15,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:15,112 INFO L85 PathProgramCache]: Analyzing trace with hash 675117315, now seen corresponding path program 182 times [2022-11-16 11:36:15,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:15,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009231204] [2022-11-16 11:36:15,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:15,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:15,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:16,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:36:16,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:16,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009231204] [2022-11-16 11:36:16,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009231204] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:16,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:36:16,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:36:16,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318392671] [2022-11-16 11:36:16,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:16,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:36:16,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:16,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:36:16,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:36:16,447 INFO L87 Difference]: Start difference. First operand 1527 states and 4923 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:18,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:36:18,332 INFO L93 Difference]: Finished difference Result 2804 states and 8306 transitions. [2022-11-16 11:36:18,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:36:18,333 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:36:18,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:36:18,338 INFO L225 Difference]: With dead ends: 2804 [2022-11-16 11:36:18,338 INFO L226 Difference]: Without dead ends: 2783 [2022-11-16 11:36:18,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=177, Invalid=375, Unknown=0, NotChecked=0, Total=552 [2022-11-16 11:36:18,338 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 300 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 1160 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 1186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:36:18,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 35 Invalid, 1186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1160 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:36:18,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2783 states. [2022-11-16 11:36:18,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2783 to 1519. [2022-11-16 11:36:18,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1519 states, 1518 states have (on average 3.2325428194993413) internal successors, (4907), 1518 states have internal predecessors, (4907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:18,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 4907 transitions. [2022-11-16 11:36:18,369 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 4907 transitions. Word has length 33 [2022-11-16 11:36:18,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:36:18,369 INFO L495 AbstractCegarLoop]: Abstraction has 1519 states and 4907 transitions. [2022-11-16 11:36:18,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:18,369 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 4907 transitions. [2022-11-16 11:36:18,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:36:18,371 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:36:18,371 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:18,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2022-11-16 11:36:18,371 INFO L420 AbstractCegarLoop]: === Iteration 192 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:36:18,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:18,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1955646027, now seen corresponding path program 183 times [2022-11-16 11:36:18,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:18,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133609093] [2022-11-16 11:36:18,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:18,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:18,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:19,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:36:19,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:19,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133609093] [2022-11-16 11:36:19,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133609093] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:19,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:36:19,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:36:19,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451192511] [2022-11-16 11:36:19,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:19,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:36:19,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:19,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:36:19,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:36:19,643 INFO L87 Difference]: Start difference. First operand 1519 states and 4907 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:21,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:36:21,541 INFO L93 Difference]: Finished difference Result 2808 states and 8304 transitions. [2022-11-16 11:36:21,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:36:21,542 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:36:21,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:36:21,546 INFO L225 Difference]: With dead ends: 2808 [2022-11-16 11:36:21,547 INFO L226 Difference]: Without dead ends: 2797 [2022-11-16 11:36:21,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=177, Invalid=375, Unknown=0, NotChecked=0, Total=552 [2022-11-16 11:36:21,547 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 289 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 1294 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 1320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:36:21,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 48 Invalid, 1320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1294 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:36:21,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2797 states. [2022-11-16 11:36:21,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2797 to 1521. [2022-11-16 11:36:21,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1520 states have (on average 3.232894736842105) internal successors, (4914), 1520 states have internal predecessors, (4914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:21,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 4914 transitions. [2022-11-16 11:36:21,577 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 4914 transitions. Word has length 33 [2022-11-16 11:36:21,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:36:21,578 INFO L495 AbstractCegarLoop]: Abstraction has 1521 states and 4914 transitions. [2022-11-16 11:36:21,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:21,578 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 4914 transitions. [2022-11-16 11:36:21,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:36:21,581 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:36:21,581 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:21,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2022-11-16 11:36:21,581 INFO L420 AbstractCegarLoop]: === Iteration 193 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:36:21,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:21,581 INFO L85 PathProgramCache]: Analyzing trace with hash -349956621, now seen corresponding path program 184 times [2022-11-16 11:36:21,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:21,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644927371] [2022-11-16 11:36:21,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:21,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:21,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:22,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:36:22,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:22,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644927371] [2022-11-16 11:36:22,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644927371] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:22,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:36:22,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:36:22,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44478227] [2022-11-16 11:36:22,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:22,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:36:22,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:22,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:36:22,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:36:22,795 INFO L87 Difference]: Start difference. First operand 1521 states and 4914 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:24,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:36:24,736 INFO L93 Difference]: Finished difference Result 2814 states and 8314 transitions. [2022-11-16 11:36:24,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:36:24,737 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:36:24,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:36:24,741 INFO L225 Difference]: With dead ends: 2814 [2022-11-16 11:36:24,741 INFO L226 Difference]: Without dead ends: 2795 [2022-11-16 11:36:24,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=178, Invalid=374, Unknown=0, NotChecked=0, Total=552 [2022-11-16 11:36:24,741 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 323 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1262 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:36:24,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 45 Invalid, 1288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1262 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:36:24,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2795 states. [2022-11-16 11:36:24,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2795 to 1521. [2022-11-16 11:36:24,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1520 states have (on average 3.231578947368421) internal successors, (4912), 1520 states have internal predecessors, (4912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:24,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 4912 transitions. [2022-11-16 11:36:24,769 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 4912 transitions. Word has length 33 [2022-11-16 11:36:24,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:36:24,769 INFO L495 AbstractCegarLoop]: Abstraction has 1521 states and 4912 transitions. [2022-11-16 11:36:24,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:24,769 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 4912 transitions. [2022-11-16 11:36:24,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:36:24,771 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:36:24,771 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:24,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2022-11-16 11:36:24,771 INFO L420 AbstractCegarLoop]: === Iteration 194 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:36:24,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:24,771 INFO L85 PathProgramCache]: Analyzing trace with hash 576085303, now seen corresponding path program 185 times [2022-11-16 11:36:24,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:24,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881457491] [2022-11-16 11:36:24,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:24,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:24,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:26,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:36:26,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:26,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881457491] [2022-11-16 11:36:26,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881457491] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:26,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:36:26,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:36:26,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829852812] [2022-11-16 11:36:26,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:26,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:36:26,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:26,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:36:26,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:36:26,054 INFO L87 Difference]: Start difference. First operand 1521 states and 4912 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:28,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:36:28,003 INFO L93 Difference]: Finished difference Result 2802 states and 8291 transitions. [2022-11-16 11:36:28,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:36:28,004 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:36:28,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:36:28,009 INFO L225 Difference]: With dead ends: 2802 [2022-11-16 11:36:28,009 INFO L226 Difference]: Without dead ends: 2791 [2022-11-16 11:36:28,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=177, Invalid=375, Unknown=0, NotChecked=0, Total=552 [2022-11-16 11:36:28,010 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 330 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 1172 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:36:28,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 39 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1172 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:36:28,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2791 states. [2022-11-16 11:36:28,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2791 to 1521. [2022-11-16 11:36:28,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1520 states have (on average 3.231578947368421) internal successors, (4912), 1520 states have internal predecessors, (4912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:28,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 4912 transitions. [2022-11-16 11:36:28,039 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 4912 transitions. Word has length 33 [2022-11-16 11:36:28,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:36:28,039 INFO L495 AbstractCegarLoop]: Abstraction has 1521 states and 4912 transitions. [2022-11-16 11:36:28,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:28,039 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 4912 transitions. [2022-11-16 11:36:28,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:36:28,041 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:36:28,041 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:28,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2022-11-16 11:36:28,041 INFO L420 AbstractCegarLoop]: === Iteration 195 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:36:28,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:28,042 INFO L85 PathProgramCache]: Analyzing trace with hash -507503181, now seen corresponding path program 186 times [2022-11-16 11:36:28,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:28,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966796335] [2022-11-16 11:36:28,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:28,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:28,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:29,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:36:29,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:29,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966796335] [2022-11-16 11:36:29,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966796335] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:29,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:36:29,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:36:29,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553644845] [2022-11-16 11:36:29,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:29,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:36:29,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:29,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:36:29,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:36:29,387 INFO L87 Difference]: Start difference. First operand 1521 states and 4912 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:31,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:36:31,272 INFO L93 Difference]: Finished difference Result 2794 states and 8284 transitions. [2022-11-16 11:36:31,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:36:31,273 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:36:31,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:36:31,277 INFO L225 Difference]: With dead ends: 2794 [2022-11-16 11:36:31,277 INFO L226 Difference]: Without dead ends: 2779 [2022-11-16 11:36:31,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=176, Invalid=376, Unknown=0, NotChecked=0, Total=552 [2022-11-16 11:36:31,278 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 306 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 1225 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 1251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:36:31,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 38 Invalid, 1251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1225 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-16 11:36:31,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2779 states. [2022-11-16 11:36:31,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2779 to 1521. [2022-11-16 11:36:31,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1520 states have (on average 3.2302631578947367) internal successors, (4910), 1520 states have internal predecessors, (4910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:31,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 4910 transitions. [2022-11-16 11:36:31,305 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 4910 transitions. Word has length 33 [2022-11-16 11:36:31,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:36:31,306 INFO L495 AbstractCegarLoop]: Abstraction has 1521 states and 4910 transitions. [2022-11-16 11:36:31,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:31,306 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 4910 transitions. [2022-11-16 11:36:31,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:36:31,308 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:36:31,308 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:31,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2022-11-16 11:36:31,308 INFO L420 AbstractCegarLoop]: === Iteration 196 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:36:31,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:31,308 INFO L85 PathProgramCache]: Analyzing trace with hash 418538743, now seen corresponding path program 187 times [2022-11-16 11:36:31,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:31,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395216392] [2022-11-16 11:36:31,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:31,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:31,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:32,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:36:32,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:32,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395216392] [2022-11-16 11:36:32,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395216392] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:32,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:36:32,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:36:32,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543302672] [2022-11-16 11:36:32,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:32,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:36:32,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:32,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:36:32,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:36:32,547 INFO L87 Difference]: Start difference. First operand 1521 states and 4910 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:34,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:36:34,512 INFO L93 Difference]: Finished difference Result 2810 states and 8307 transitions. [2022-11-16 11:36:34,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:36:34,512 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:36:34,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:36:34,520 INFO L225 Difference]: With dead ends: 2810 [2022-11-16 11:36:34,520 INFO L226 Difference]: Without dead ends: 2793 [2022-11-16 11:36:34,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=177, Invalid=375, Unknown=0, NotChecked=0, Total=552 [2022-11-16 11:36:34,521 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 306 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1281 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 1307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:36:34,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 44 Invalid, 1307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1281 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:36:34,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2793 states. [2022-11-16 11:36:34,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2793 to 1525. [2022-11-16 11:36:34,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1525 states, 1524 states have (on average 3.2263779527559056) internal successors, (4917), 1524 states have internal predecessors, (4917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:34,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 4917 transitions. [2022-11-16 11:36:34,549 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 4917 transitions. Word has length 33 [2022-11-16 11:36:34,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:36:34,549 INFO L495 AbstractCegarLoop]: Abstraction has 1525 states and 4917 transitions. [2022-11-16 11:36:34,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:34,549 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 4917 transitions. [2022-11-16 11:36:34,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:36:34,551 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:36:34,551 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:34,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2022-11-16 11:36:34,551 INFO L420 AbstractCegarLoop]: === Iteration 197 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:36:34,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:34,551 INFO L85 PathProgramCache]: Analyzing trace with hash 2024228149, now seen corresponding path program 188 times [2022-11-16 11:36:34,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:34,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86904415] [2022-11-16 11:36:34,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:34,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:34,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:35,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:36:35,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:35,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86904415] [2022-11-16 11:36:35,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86904415] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:35,899 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:36:35,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:36:35,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702408440] [2022-11-16 11:36:35,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:35,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:36:35,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:35,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:36:35,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:36:35,900 INFO L87 Difference]: Start difference. First operand 1525 states and 4917 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:37,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:36:37,994 INFO L93 Difference]: Finished difference Result 2796 states and 8286 transitions. [2022-11-16 11:36:37,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:36:37,995 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:36:37,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:36:37,999 INFO L225 Difference]: With dead ends: 2796 [2022-11-16 11:36:38,000 INFO L226 Difference]: Without dead ends: 2775 [2022-11-16 11:36:38,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=177, Invalid=375, Unknown=0, NotChecked=0, Total=552 [2022-11-16 11:36:38,000 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 246 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 1373 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 1398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:36:38,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 42 Invalid, 1398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1373 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:36:38,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2775 states. [2022-11-16 11:36:38,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2775 to 1517. [2022-11-16 11:36:38,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1517 states, 1516 states have (on average 3.233509234828496) internal successors, (4902), 1516 states have internal predecessors, (4902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:38,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1517 states to 1517 states and 4902 transitions. [2022-11-16 11:36:38,028 INFO L78 Accepts]: Start accepts. Automaton has 1517 states and 4902 transitions. Word has length 33 [2022-11-16 11:36:38,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:36:38,028 INFO L495 AbstractCegarLoop]: Abstraction has 1517 states and 4902 transitions. [2022-11-16 11:36:38,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:38,028 INFO L276 IsEmpty]: Start isEmpty. Operand 1517 states and 4902 transitions. [2022-11-16 11:36:38,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:36:38,030 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:36:38,030 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:38,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2022-11-16 11:36:38,030 INFO L420 AbstractCegarLoop]: === Iteration 198 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:36:38,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:38,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1972160665, now seen corresponding path program 189 times [2022-11-16 11:36:38,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:38,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443697606] [2022-11-16 11:36:38,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:38,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:38,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:39,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:36:39,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:39,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443697606] [2022-11-16 11:36:39,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443697606] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:39,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:36:39,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:36:39,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717573191] [2022-11-16 11:36:39,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:39,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:36:39,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:39,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:36:39,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:36:39,371 INFO L87 Difference]: Start difference. First operand 1517 states and 4902 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:41,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:36:41,613 INFO L93 Difference]: Finished difference Result 2786 states and 8262 transitions. [2022-11-16 11:36:41,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 11:36:41,613 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:36:41,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:36:41,620 INFO L225 Difference]: With dead ends: 2786 [2022-11-16 11:36:41,620 INFO L226 Difference]: Without dead ends: 2771 [2022-11-16 11:36:41,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=212, Invalid=438, Unknown=0, NotChecked=0, Total=650 [2022-11-16 11:36:41,620 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 274 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 1297 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 1326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:36:41,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 54 Invalid, 1326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1297 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:36:41,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2771 states. [2022-11-16 11:36:41,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2771 to 1521. [2022-11-16 11:36:41,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1520 states have (on average 3.2342105263157896) internal successors, (4916), 1520 states have internal predecessors, (4916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:41,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 4916 transitions. [2022-11-16 11:36:41,662 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 4916 transitions. Word has length 33 [2022-11-16 11:36:41,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:36:41,662 INFO L495 AbstractCegarLoop]: Abstraction has 1521 states and 4916 transitions. [2022-11-16 11:36:41,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:41,662 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 4916 transitions. [2022-11-16 11:36:41,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:36:41,665 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:36:41,665 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:41,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2022-11-16 11:36:41,665 INFO L420 AbstractCegarLoop]: === Iteration 199 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:36:41,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:41,665 INFO L85 PathProgramCache]: Analyzing trace with hash 719743001, now seen corresponding path program 190 times [2022-11-16 11:36:41,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:41,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74480069] [2022-11-16 11:36:41,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:41,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:41,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:42,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:36:42,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:42,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74480069] [2022-11-16 11:36:42,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74480069] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:42,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:36:42,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:36:42,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306897590] [2022-11-16 11:36:42,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:42,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:36:42,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:42,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:36:42,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:36:42,832 INFO L87 Difference]: Start difference. First operand 1521 states and 4916 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:45,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:36:45,140 INFO L93 Difference]: Finished difference Result 2784 states and 8255 transitions. [2022-11-16 11:36:45,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 11:36:45,141 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:36:45,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:36:45,146 INFO L225 Difference]: With dead ends: 2784 [2022-11-16 11:36:45,146 INFO L226 Difference]: Without dead ends: 2771 [2022-11-16 11:36:45,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=232, Invalid=470, Unknown=0, NotChecked=0, Total=702 [2022-11-16 11:36:45,146 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 284 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 1355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:36:45,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 61 Invalid, 1355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1326 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:36:45,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2771 states. [2022-11-16 11:36:45,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2771 to 1521. [2022-11-16 11:36:45,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1520 states have (on average 3.232894736842105) internal successors, (4914), 1520 states have internal predecessors, (4914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:45,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 4914 transitions. [2022-11-16 11:36:45,182 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 4914 transitions. Word has length 33 [2022-11-16 11:36:45,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:36:45,182 INFO L495 AbstractCegarLoop]: Abstraction has 1521 states and 4914 transitions. [2022-11-16 11:36:45,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:45,183 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 4914 transitions. [2022-11-16 11:36:45,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:36:45,185 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:36:45,185 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:45,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2022-11-16 11:36:45,185 INFO L420 AbstractCegarLoop]: === Iteration 200 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:36:45,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:45,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1203665301, now seen corresponding path program 191 times [2022-11-16 11:36:45,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:45,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466653959] [2022-11-16 11:36:45,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:45,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:45,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:46,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:36:46,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:46,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466653959] [2022-11-16 11:36:46,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466653959] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:46,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:36:46,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-16 11:36:46,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252604791] [2022-11-16 11:36:46,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:46,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-16 11:36:46,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:46,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-16 11:36:46,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-11-16 11:36:46,967 INFO L87 Difference]: Start difference. First operand 1521 states and 4914 transitions. Second operand has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:49,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:36:49,379 INFO L93 Difference]: Finished difference Result 3092 states and 9361 transitions. [2022-11-16 11:36:49,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 11:36:49,379 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:36:49,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:36:49,385 INFO L225 Difference]: With dead ends: 3092 [2022-11-16 11:36:49,385 INFO L226 Difference]: Without dead ends: 3077 [2022-11-16 11:36:49,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=274, Invalid=596, Unknown=0, NotChecked=0, Total=870 [2022-11-16 11:36:49,386 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 400 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 1475 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 1508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:36:49,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 73 Invalid, 1508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1475 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:36:49,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3077 states. [2022-11-16 11:36:49,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3077 to 1531. [2022-11-16 11:36:49,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1531 states, 1530 states have (on average 3.2287581699346406) internal successors, (4940), 1530 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:49,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1531 states to 1531 states and 4940 transitions. [2022-11-16 11:36:49,416 INFO L78 Accepts]: Start accepts. Automaton has 1531 states and 4940 transitions. Word has length 33 [2022-11-16 11:36:49,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:36:49,417 INFO L495 AbstractCegarLoop]: Abstraction has 1531 states and 4940 transitions. [2022-11-16 11:36:49,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:49,417 INFO L276 IsEmpty]: Start isEmpty. Operand 1531 states and 4940 transitions. [2022-11-16 11:36:49,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:36:49,419 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:36:49,419 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:49,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2022-11-16 11:36:49,419 INFO L420 AbstractCegarLoop]: === Iteration 201 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:36:49,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:49,419 INFO L85 PathProgramCache]: Analyzing trace with hash 404649881, now seen corresponding path program 192 times [2022-11-16 11:36:49,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:49,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389092536] [2022-11-16 11:36:49,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:49,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:49,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:50,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:36:50,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:50,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389092536] [2022-11-16 11:36:50,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389092536] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:50,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:36:50,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:36:50,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651771190] [2022-11-16 11:36:50,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:50,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:36:50,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:50,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:36:50,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:36:50,589 INFO L87 Difference]: Start difference. First operand 1531 states and 4940 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:52,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:36:52,570 INFO L93 Difference]: Finished difference Result 2812 states and 8307 transitions. [2022-11-16 11:36:52,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:36:52,571 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:36:52,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:36:52,576 INFO L225 Difference]: With dead ends: 2812 [2022-11-16 11:36:52,576 INFO L226 Difference]: Without dead ends: 2795 [2022-11-16 11:36:52,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=195, Invalid=405, Unknown=0, NotChecked=0, Total=600 [2022-11-16 11:36:52,576 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 323 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 1183 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 1211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:36:52,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 46 Invalid, 1211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1183 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:36:52,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2795 states. [2022-11-16 11:36:52,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2795 to 1531. [2022-11-16 11:36:52,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1531 states, 1530 states have (on average 3.227450980392157) internal successors, (4938), 1530 states have internal predecessors, (4938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:52,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1531 states to 1531 states and 4938 transitions. [2022-11-16 11:36:52,607 INFO L78 Accepts]: Start accepts. Automaton has 1531 states and 4938 transitions. Word has length 33 [2022-11-16 11:36:52,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:36:52,607 INFO L495 AbstractCegarLoop]: Abstraction has 1531 states and 4938 transitions. [2022-11-16 11:36:52,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:52,607 INFO L276 IsEmpty]: Start isEmpty. Operand 1531 states and 4938 transitions. [2022-11-16 11:36:52,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:36:52,609 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:36:52,609 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:52,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2022-11-16 11:36:52,609 INFO L420 AbstractCegarLoop]: === Iteration 202 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:36:52,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:52,609 INFO L85 PathProgramCache]: Analyzing trace with hash -962093909, now seen corresponding path program 193 times [2022-11-16 11:36:52,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:52,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098287888] [2022-11-16 11:36:52,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:52,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:52,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:54,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:36:54,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:54,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098287888] [2022-11-16 11:36:54,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098287888] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:54,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:36:54,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-16 11:36:54,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456989708] [2022-11-16 11:36:54,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:54,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-16 11:36:54,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:54,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-16 11:36:54,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-11-16 11:36:54,605 INFO L87 Difference]: Start difference. First operand 1531 states and 4938 transitions. Second operand has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:57,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:36:57,363 INFO L93 Difference]: Finished difference Result 2628 states and 7859 transitions. [2022-11-16 11:36:57,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:36:57,364 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:36:57,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:36:57,368 INFO L225 Difference]: With dead ends: 2628 [2022-11-16 11:36:57,368 INFO L226 Difference]: Without dead ends: 2617 [2022-11-16 11:36:57,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=239, Invalid=573, Unknown=0, NotChecked=0, Total=812 [2022-11-16 11:36:57,369 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 399 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 1401 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 1431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:36:57,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 54 Invalid, 1431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1401 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-16 11:36:57,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2617 states. [2022-11-16 11:36:57,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2617 to 1531. [2022-11-16 11:36:57,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1531 states, 1530 states have (on average 3.227450980392157) internal successors, (4938), 1530 states have internal predecessors, (4938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:57,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1531 states to 1531 states and 4938 transitions. [2022-11-16 11:36:57,396 INFO L78 Accepts]: Start accepts. Automaton has 1531 states and 4938 transitions. Word has length 33 [2022-11-16 11:36:57,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:36:57,396 INFO L495 AbstractCegarLoop]: Abstraction has 1531 states and 4938 transitions. [2022-11-16 11:36:57,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:57,396 INFO L276 IsEmpty]: Start isEmpty. Operand 1531 states and 4938 transitions. [2022-11-16 11:36:57,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:36:57,398 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:36:57,398 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:57,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2022-11-16 11:36:57,398 INFO L420 AbstractCegarLoop]: === Iteration 203 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:36:57,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:57,398 INFO L85 PathProgramCache]: Analyzing trace with hash -2045682393, now seen corresponding path program 194 times [2022-11-16 11:36:57,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:57,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452500688] [2022-11-16 11:36:57,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:57,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:57,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:58,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:36:58,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:58,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452500688] [2022-11-16 11:36:58,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452500688] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:58,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:36:58,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:36:58,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859100712] [2022-11-16 11:36:58,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:58,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:36:58,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:58,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:36:58,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:36:58,598 INFO L87 Difference]: Start difference. First operand 1531 states and 4938 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:00,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:37:00,600 INFO L93 Difference]: Finished difference Result 2794 states and 8277 transitions. [2022-11-16 11:37:00,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:37:00,600 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:37:00,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:37:00,605 INFO L225 Difference]: With dead ends: 2794 [2022-11-16 11:37:00,605 INFO L226 Difference]: Without dead ends: 2777 [2022-11-16 11:37:00,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=195, Invalid=405, Unknown=0, NotChecked=0, Total=600 [2022-11-16 11:37:00,606 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 284 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1317 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 1344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:37:00,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 44 Invalid, 1344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1317 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:37:00,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2777 states. [2022-11-16 11:37:00,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2777 to 1529. [2022-11-16 11:37:00,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1529 states, 1528 states have (on average 3.227094240837696) internal successors, (4931), 1528 states have internal predecessors, (4931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:00,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1529 states to 1529 states and 4931 transitions. [2022-11-16 11:37:00,633 INFO L78 Accepts]: Start accepts. Automaton has 1529 states and 4931 transitions. Word has length 33 [2022-11-16 11:37:00,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:37:00,634 INFO L495 AbstractCegarLoop]: Abstraction has 1529 states and 4931 transitions. [2022-11-16 11:37:00,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:00,634 INFO L276 IsEmpty]: Start isEmpty. Operand 1529 states and 4931 transitions. [2022-11-16 11:37:00,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:37:00,635 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:37:00,636 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:00,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2022-11-16 11:37:00,636 INFO L420 AbstractCegarLoop]: === Iteration 204 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:37:00,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:00,636 INFO L85 PathProgramCache]: Analyzing trace with hash 279469637, now seen corresponding path program 195 times [2022-11-16 11:37:00,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:00,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711411451] [2022-11-16 11:37:00,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:00,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:00,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:01,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:37:01,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:01,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711411451] [2022-11-16 11:37:01,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711411451] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:01,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:01,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:37:01,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862188454] [2022-11-16 11:37:01,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:01,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:37:01,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:01,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:37:01,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:37:01,801 INFO L87 Difference]: Start difference. First operand 1529 states and 4931 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:03,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:37:03,758 INFO L93 Difference]: Finished difference Result 2796 states and 8281 transitions. [2022-11-16 11:37:03,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:37:03,758 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:37:03,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:37:03,763 INFO L225 Difference]: With dead ends: 2796 [2022-11-16 11:37:03,763 INFO L226 Difference]: Without dead ends: 2781 [2022-11-16 11:37:03,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=197, Invalid=403, Unknown=0, NotChecked=0, Total=600 [2022-11-16 11:37:03,763 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 303 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 1189 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 1219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:37:03,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 50 Invalid, 1219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1189 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:37:03,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2781 states. [2022-11-16 11:37:03,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2781 to 1537. [2022-11-16 11:37:03,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1537 states, 1536 states have (on average 3.2220052083333335) internal successors, (4949), 1536 states have internal predecessors, (4949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:03,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1537 states to 1537 states and 4949 transitions. [2022-11-16 11:37:03,793 INFO L78 Accepts]: Start accepts. Automaton has 1537 states and 4949 transitions. Word has length 33 [2022-11-16 11:37:03,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:37:03,793 INFO L495 AbstractCegarLoop]: Abstraction has 1537 states and 4949 transitions. [2022-11-16 11:37:03,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:03,793 INFO L276 IsEmpty]: Start isEmpty. Operand 1537 states and 4949 transitions. [2022-11-16 11:37:03,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:37:03,795 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:37:03,795 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:03,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2022-11-16 11:37:03,795 INFO L420 AbstractCegarLoop]: === Iteration 205 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:37:03,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:03,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1887784819, now seen corresponding path program 196 times [2022-11-16 11:37:03,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:03,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208171938] [2022-11-16 11:37:03,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:03,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:03,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:05,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:37:05,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:05,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208171938] [2022-11-16 11:37:05,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208171938] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:05,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:05,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:37:05,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476668026] [2022-11-16 11:37:05,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:05,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:37:05,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:05,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:37:05,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:37:05,003 INFO L87 Difference]: Start difference. First operand 1537 states and 4949 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:07,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:37:07,008 INFO L93 Difference]: Finished difference Result 2794 states and 8273 transitions. [2022-11-16 11:37:07,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:37:07,009 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:37:07,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:37:07,014 INFO L225 Difference]: With dead ends: 2794 [2022-11-16 11:37:07,014 INFO L226 Difference]: Without dead ends: 2777 [2022-11-16 11:37:07,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=197, Invalid=403, Unknown=0, NotChecked=0, Total=600 [2022-11-16 11:37:07,014 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 302 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 1203 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 1231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:37:07,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 47 Invalid, 1231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1203 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:37:07,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2777 states. [2022-11-16 11:37:07,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2777 to 1533. [2022-11-16 11:37:07,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1533 states, 1532 states have (on average 3.2232375979112273) internal successors, (4938), 1532 states have internal predecessors, (4938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:07,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1533 states to 1533 states and 4938 transitions. [2022-11-16 11:37:07,043 INFO L78 Accepts]: Start accepts. Automaton has 1533 states and 4938 transitions. Word has length 33 [2022-11-16 11:37:07,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:37:07,043 INFO L495 AbstractCegarLoop]: Abstraction has 1533 states and 4938 transitions. [2022-11-16 11:37:07,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:07,043 INFO L276 IsEmpty]: Start isEmpty. Operand 1533 states and 4938 transitions. [2022-11-16 11:37:07,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:37:07,045 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:37:07,045 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:07,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2022-11-16 11:37:07,046 INFO L420 AbstractCegarLoop]: === Iteration 206 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:37:07,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:07,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1068893721, now seen corresponding path program 197 times [2022-11-16 11:37:07,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:07,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528146590] [2022-11-16 11:37:07,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:07,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:07,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:08,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:37:08,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:08,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528146590] [2022-11-16 11:37:08,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528146590] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:08,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:08,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:37:08,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321431606] [2022-11-16 11:37:08,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:08,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:37:08,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:08,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:37:08,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:37:08,297 INFO L87 Difference]: Start difference. First operand 1533 states and 4938 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:10,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:37:10,403 INFO L93 Difference]: Finished difference Result 2790 states and 8262 transitions. [2022-11-16 11:37:10,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:37:10,403 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:37:10,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:37:10,408 INFO L225 Difference]: With dead ends: 2790 [2022-11-16 11:37:10,408 INFO L226 Difference]: Without dead ends: 2769 [2022-11-16 11:37:10,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=199, Invalid=401, Unknown=0, NotChecked=0, Total=600 [2022-11-16 11:37:10,408 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 277 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 1266 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 1295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:37:10,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 46 Invalid, 1295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1266 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:37:10,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2769 states. [2022-11-16 11:37:10,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2769 to 1529. [2022-11-16 11:37:10,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1529 states, 1528 states have (on average 3.224476439790576) internal successors, (4927), 1528 states have internal predecessors, (4927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:10,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1529 states to 1529 states and 4927 transitions. [2022-11-16 11:37:10,438 INFO L78 Accepts]: Start accepts. Automaton has 1529 states and 4927 transitions. Word has length 33 [2022-11-16 11:37:10,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:37:10,438 INFO L495 AbstractCegarLoop]: Abstraction has 1529 states and 4927 transitions. [2022-11-16 11:37:10,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:10,438 INFO L276 IsEmpty]: Start isEmpty. Operand 1529 states and 4927 transitions. [2022-11-16 11:37:10,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:37:10,440 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:37:10,440 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:10,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2022-11-16 11:37:10,440 INFO L420 AbstractCegarLoop]: === Iteration 207 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:37:10,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:10,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1870151863, now seen corresponding path program 198 times [2022-11-16 11:37:10,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:10,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817149013] [2022-11-16 11:37:10,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:10,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:10,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:11,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:37:11,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:11,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817149013] [2022-11-16 11:37:11,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817149013] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:11,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:11,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:37:11,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132181131] [2022-11-16 11:37:11,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:11,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:37:11,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:11,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:37:11,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:37:11,726 INFO L87 Difference]: Start difference. First operand 1529 states and 4927 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:13,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:37:13,867 INFO L93 Difference]: Finished difference Result 2788 states and 8255 transitions. [2022-11-16 11:37:13,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 11:37:13,867 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:37:13,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:37:13,872 INFO L225 Difference]: With dead ends: 2788 [2022-11-16 11:37:13,872 INFO L226 Difference]: Without dead ends: 2777 [2022-11-16 11:37:13,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=236, Invalid=466, Unknown=0, NotChecked=0, Total=702 [2022-11-16 11:37:13,872 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 275 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 1265 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 1296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:37:13,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 48 Invalid, 1296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1265 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:37:13,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2777 states. [2022-11-16 11:37:13,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2777 to 1531. [2022-11-16 11:37:13,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1531 states, 1530 states have (on average 3.223529411764706) internal successors, (4932), 1530 states have internal predecessors, (4932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:13,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1531 states to 1531 states and 4932 transitions. [2022-11-16 11:37:13,900 INFO L78 Accepts]: Start accepts. Automaton has 1531 states and 4932 transitions. Word has length 33 [2022-11-16 11:37:13,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:37:13,900 INFO L495 AbstractCegarLoop]: Abstraction has 1531 states and 4932 transitions. [2022-11-16 11:37:13,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:13,900 INFO L276 IsEmpty]: Start isEmpty. Operand 1531 states and 4932 transitions. [2022-11-16 11:37:13,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:37:13,902 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:37:13,902 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:13,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2022-11-16 11:37:13,902 INFO L420 AbstractCegarLoop]: === Iteration 208 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:37:13,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:13,903 INFO L85 PathProgramCache]: Analyzing trace with hash 786563379, now seen corresponding path program 199 times [2022-11-16 11:37:13,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:13,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292153985] [2022-11-16 11:37:13,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:13,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:13,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:15,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:37:15,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:15,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292153985] [2022-11-16 11:37:15,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292153985] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:15,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:15,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:37:15,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224518086] [2022-11-16 11:37:15,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:15,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:37:15,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:15,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:37:15,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:37:15,113 INFO L87 Difference]: Start difference. First operand 1531 states and 4932 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:17,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:37:17,216 INFO L93 Difference]: Finished difference Result 2788 states and 8254 transitions. [2022-11-16 11:37:17,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 11:37:17,216 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:37:17,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:37:17,221 INFO L225 Difference]: With dead ends: 2788 [2022-11-16 11:37:17,221 INFO L226 Difference]: Without dead ends: 2773 [2022-11-16 11:37:17,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=216, Invalid=434, Unknown=0, NotChecked=0, Total=650 [2022-11-16 11:37:17,222 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 261 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 1355 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 1385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:37:17,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 50 Invalid, 1385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1355 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:37:17,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2773 states. [2022-11-16 11:37:17,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2773 to 1529. [2022-11-16 11:37:17,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1529 states, 1528 states have (on average 3.224476439790576) internal successors, (4927), 1528 states have internal predecessors, (4927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:17,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1529 states to 1529 states and 4927 transitions. [2022-11-16 11:37:17,251 INFO L78 Accepts]: Start accepts. Automaton has 1529 states and 4927 transitions. Word has length 33 [2022-11-16 11:37:17,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:37:17,251 INFO L495 AbstractCegarLoop]: Abstraction has 1529 states and 4927 transitions. [2022-11-16 11:37:17,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:17,252 INFO L276 IsEmpty]: Start isEmpty. Operand 1529 states and 4927 transitions. [2022-11-16 11:37:17,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:37:17,253 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:37:17,253 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:17,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2022-11-16 11:37:17,254 INFO L420 AbstractCegarLoop]: === Iteration 209 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:37:17,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:17,254 INFO L85 PathProgramCache]: Analyzing trace with hash 280217113, now seen corresponding path program 200 times [2022-11-16 11:37:17,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:17,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49980226] [2022-11-16 11:37:17,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:17,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:17,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:18,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:37:18,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:18,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49980226] [2022-11-16 11:37:18,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49980226] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:18,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:18,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:37:18,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537788241] [2022-11-16 11:37:18,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:18,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:37:18,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:18,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:37:18,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:37:18,503 INFO L87 Difference]: Start difference. First operand 1529 states and 4927 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:20,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:37:20,393 INFO L93 Difference]: Finished difference Result 2776 states and 8240 transitions. [2022-11-16 11:37:20,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 11:37:20,393 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:37:20,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:37:20,398 INFO L225 Difference]: With dead ends: 2776 [2022-11-16 11:37:20,398 INFO L226 Difference]: Without dead ends: 2755 [2022-11-16 11:37:20,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=220, Invalid=430, Unknown=0, NotChecked=0, Total=650 [2022-11-16 11:37:20,399 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 287 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 1034 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 1065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1034 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:37:20,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 38 Invalid, 1065 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1034 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-16 11:37:20,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2755 states. [2022-11-16 11:37:20,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2755 to 1527. [2022-11-16 11:37:20,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1527 states, 1526 states have (on average 3.2241153342070774) internal successors, (4920), 1526 states have internal predecessors, (4920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:20,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1527 states to 1527 states and 4920 transitions. [2022-11-16 11:37:20,431 INFO L78 Accepts]: Start accepts. Automaton has 1527 states and 4920 transitions. Word has length 33 [2022-11-16 11:37:20,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:37:20,431 INFO L495 AbstractCegarLoop]: Abstraction has 1527 states and 4920 transitions. [2022-11-16 11:37:20,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:20,431 INFO L276 IsEmpty]: Start isEmpty. Operand 1527 states and 4920 transitions. [2022-11-16 11:37:20,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:37:20,434 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:37:20,434 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:20,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2022-11-16 11:37:20,434 INFO L420 AbstractCegarLoop]: === Iteration 210 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:37:20,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:20,434 INFO L85 PathProgramCache]: Analyzing trace with hash -518818135, now seen corresponding path program 201 times [2022-11-16 11:37:20,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:20,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218618452] [2022-11-16 11:37:20,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:20,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:20,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:21,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:37:21,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:21,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218618452] [2022-11-16 11:37:21,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218618452] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:21,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:21,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:37:21,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515101725] [2022-11-16 11:37:21,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:21,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:37:21,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:21,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:37:21,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:37:21,670 INFO L87 Difference]: Start difference. First operand 1527 states and 4920 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:23,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:37:23,658 INFO L93 Difference]: Finished difference Result 2758 states and 8208 transitions. [2022-11-16 11:37:23,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:37:23,659 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:37:23,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:37:23,664 INFO L225 Difference]: With dead ends: 2758 [2022-11-16 11:37:23,664 INFO L226 Difference]: Without dead ends: 2743 [2022-11-16 11:37:23,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=178, Invalid=374, Unknown=0, NotChecked=0, Total=552 [2022-11-16 11:37:23,664 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 268 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 1298 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 1325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:37:23,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 38 Invalid, 1325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1298 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:37:23,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2743 states. [2022-11-16 11:37:23,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2743 to 1541. [2022-11-16 11:37:23,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1541 states, 1540 states have (on average 3.2214285714285715) internal successors, (4961), 1540 states have internal predecessors, (4961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:23,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1541 states to 1541 states and 4961 transitions. [2022-11-16 11:37:23,693 INFO L78 Accepts]: Start accepts. Automaton has 1541 states and 4961 transitions. Word has length 33 [2022-11-16 11:37:23,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:37:23,693 INFO L495 AbstractCegarLoop]: Abstraction has 1541 states and 4961 transitions. [2022-11-16 11:37:23,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:23,693 INFO L276 IsEmpty]: Start isEmpty. Operand 1541 states and 4961 transitions. [2022-11-16 11:37:23,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:37:23,695 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:37:23,695 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:23,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2022-11-16 11:37:23,695 INFO L420 AbstractCegarLoop]: === Iteration 211 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:37:23,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:23,696 INFO L85 PathProgramCache]: Analyzing trace with hash -516192359, now seen corresponding path program 202 times [2022-11-16 11:37:23,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:23,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773406065] [2022-11-16 11:37:23,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:23,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:23,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:24,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:37:24,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:24,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773406065] [2022-11-16 11:37:24,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773406065] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:24,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:24,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:37:24,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779102967] [2022-11-16 11:37:24,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:24,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:37:24,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:24,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:37:24,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:37:24,912 INFO L87 Difference]: Start difference. First operand 1541 states and 4961 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:26,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:37:26,773 INFO L93 Difference]: Finished difference Result 2760 states and 8206 transitions. [2022-11-16 11:37:26,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:37:26,774 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:37:26,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:37:26,778 INFO L225 Difference]: With dead ends: 2760 [2022-11-16 11:37:26,778 INFO L226 Difference]: Without dead ends: 2737 [2022-11-16 11:37:26,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=179, Invalid=373, Unknown=0, NotChecked=0, Total=552 [2022-11-16 11:37:26,779 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 329 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 1134 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 1162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:37:26,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 34 Invalid, 1162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1134 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-16 11:37:26,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2737 states. [2022-11-16 11:37:26,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2737 to 1535. [2022-11-16 11:37:26,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1535 states, 1534 states have (on average 3.224250325945241) internal successors, (4946), 1534 states have internal predecessors, (4946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:26,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1535 states to 1535 states and 4946 transitions. [2022-11-16 11:37:26,807 INFO L78 Accepts]: Start accepts. Automaton has 1535 states and 4946 transitions. Word has length 33 [2022-11-16 11:37:26,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:37:26,807 INFO L495 AbstractCegarLoop]: Abstraction has 1535 states and 4946 transitions. [2022-11-16 11:37:26,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:26,807 INFO L276 IsEmpty]: Start isEmpty. Operand 1535 states and 4946 transitions. [2022-11-16 11:37:26,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:37:26,809 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:37:26,809 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:26,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2022-11-16 11:37:26,809 INFO L420 AbstractCegarLoop]: === Iteration 212 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:37:26,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:26,810 INFO L85 PathProgramCache]: Analyzing trace with hash 2012913195, now seen corresponding path program 203 times [2022-11-16 11:37:26,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:26,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395522008] [2022-11-16 11:37:26,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:26,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:26,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:28,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:37:28,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:28,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395522008] [2022-11-16 11:37:28,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395522008] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:28,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:28,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:37:28,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682007636] [2022-11-16 11:37:28,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:28,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:37:28,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:28,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:37:28,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:37:28,130 INFO L87 Difference]: Start difference. First operand 1535 states and 4946 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:30,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:37:30,169 INFO L93 Difference]: Finished difference Result 2770 states and 8214 transitions. [2022-11-16 11:37:30,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:37:30,170 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:37:30,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:37:30,174 INFO L225 Difference]: With dead ends: 2770 [2022-11-16 11:37:30,174 INFO L226 Difference]: Without dead ends: 2755 [2022-11-16 11:37:30,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=177, Invalid=375, Unknown=0, NotChecked=0, Total=552 [2022-11-16 11:37:30,175 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 284 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1323 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 1350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:37:30,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 44 Invalid, 1350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1323 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:37:30,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2755 states. [2022-11-16 11:37:30,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2755 to 1539. [2022-11-16 11:37:30,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1539 states, 1538 states have (on average 3.220416124837451) internal successors, (4953), 1538 states have internal predecessors, (4953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:30,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1539 states to 1539 states and 4953 transitions. [2022-11-16 11:37:30,204 INFO L78 Accepts]: Start accepts. Automaton has 1539 states and 4953 transitions. Word has length 33 [2022-11-16 11:37:30,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:37:30,205 INFO L495 AbstractCegarLoop]: Abstraction has 1539 states and 4953 transitions. [2022-11-16 11:37:30,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:30,205 INFO L276 IsEmpty]: Start isEmpty. Operand 1539 states and 4953 transitions. [2022-11-16 11:37:30,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:37:30,207 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:37:30,207 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:30,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2022-11-16 11:37:30,207 INFO L420 AbstractCegarLoop]: === Iteration 213 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:37:30,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:30,207 INFO L85 PathProgramCache]: Analyzing trace with hash -673738919, now seen corresponding path program 204 times [2022-11-16 11:37:30,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:30,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264044080] [2022-11-16 11:37:30,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:30,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:30,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:31,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:37:31,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:31,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264044080] [2022-11-16 11:37:31,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264044080] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:31,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:31,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:37:31,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996807556] [2022-11-16 11:37:31,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:31,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:37:31,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:31,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:37:31,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:37:31,355 INFO L87 Difference]: Start difference. First operand 1539 states and 4953 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:33,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:37:33,456 INFO L93 Difference]: Finished difference Result 2758 states and 8197 transitions. [2022-11-16 11:37:33,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:37:33,456 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:37:33,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:37:33,461 INFO L225 Difference]: With dead ends: 2758 [2022-11-16 11:37:33,461 INFO L226 Difference]: Without dead ends: 2741 [2022-11-16 11:37:33,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=177, Invalid=375, Unknown=0, NotChecked=0, Total=552 [2022-11-16 11:37:33,462 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 241 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 1435 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 1461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:37:33,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 47 Invalid, 1461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1435 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:37:33,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2741 states. [2022-11-16 11:37:33,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2741 to 1535. [2022-11-16 11:37:33,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1535 states, 1534 states have (on average 3.2216427640156455) internal successors, (4942), 1534 states have internal predecessors, (4942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:33,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1535 states to 1535 states and 4942 transitions. [2022-11-16 11:37:33,490 INFO L78 Accepts]: Start accepts. Automaton has 1535 states and 4942 transitions. Word has length 33 [2022-11-16 11:37:33,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:37:33,490 INFO L495 AbstractCegarLoop]: Abstraction has 1535 states and 4942 transitions. [2022-11-16 11:37:33,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:33,490 INFO L276 IsEmpty]: Start isEmpty. Operand 1535 states and 4942 transitions. [2022-11-16 11:37:33,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:37:33,492 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:37:33,492 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:33,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2022-11-16 11:37:33,492 INFO L420 AbstractCegarLoop]: === Iteration 214 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:37:33,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:33,492 INFO L85 PathProgramCache]: Analyzing trace with hash 2096938027, now seen corresponding path program 205 times [2022-11-16 11:37:33,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:33,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229124518] [2022-11-16 11:37:33,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:33,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:33,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:34,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:37:34,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:34,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229124518] [2022-11-16 11:37:34,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229124518] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:34,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:34,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:37:34,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853339508] [2022-11-16 11:37:34,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:34,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:37:34,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:34,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:37:34,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:37:34,853 INFO L87 Difference]: Start difference. First operand 1535 states and 4942 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:36,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:37:36,870 INFO L93 Difference]: Finished difference Result 2772 states and 8214 transitions. [2022-11-16 11:37:36,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:37:36,871 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:37:36,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:37:36,875 INFO L225 Difference]: With dead ends: 2772 [2022-11-16 11:37:36,876 INFO L226 Difference]: Without dead ends: 2755 [2022-11-16 11:37:36,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=178, Invalid=374, Unknown=0, NotChecked=0, Total=552 [2022-11-16 11:37:36,876 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 313 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 1299 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 1326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:37:36,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 38 Invalid, 1326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1299 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:37:36,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2755 states. [2022-11-16 11:37:36,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2755 to 1539. [2022-11-16 11:37:36,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1539 states, 1538 states have (on average 3.217815344603381) internal successors, (4949), 1538 states have internal predecessors, (4949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:36,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1539 states to 1539 states and 4949 transitions. [2022-11-16 11:37:36,905 INFO L78 Accepts]: Start accepts. Automaton has 1539 states and 4949 transitions. Word has length 33 [2022-11-16 11:37:36,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:37:36,906 INFO L495 AbstractCegarLoop]: Abstraction has 1539 states and 4949 transitions. [2022-11-16 11:37:36,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:36,906 INFO L276 IsEmpty]: Start isEmpty. Operand 1539 states and 4949 transitions. [2022-11-16 11:37:36,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:37:36,908 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:37:36,908 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:36,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2022-11-16 11:37:36,908 INFO L420 AbstractCegarLoop]: === Iteration 215 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:37:36,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:36,908 INFO L85 PathProgramCache]: Analyzing trace with hash -592339863, now seen corresponding path program 206 times [2022-11-16 11:37:36,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:36,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4555619] [2022-11-16 11:37:36,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:36,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:36,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:38,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:37:38,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:38,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4555619] [2022-11-16 11:37:38,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4555619] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:38,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:38,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:37:38,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106627246] [2022-11-16 11:37:38,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:38,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:37:38,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:38,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:37:38,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:37:38,230 INFO L87 Difference]: Start difference. First operand 1539 states and 4949 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:40,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:37:40,386 INFO L93 Difference]: Finished difference Result 2758 states and 8193 transitions. [2022-11-16 11:37:40,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:37:40,387 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:37:40,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:37:40,391 INFO L225 Difference]: With dead ends: 2758 [2022-11-16 11:37:40,392 INFO L226 Difference]: Without dead ends: 2737 [2022-11-16 11:37:40,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=177, Invalid=375, Unknown=0, NotChecked=0, Total=552 [2022-11-16 11:37:40,392 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 243 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 1372 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 1398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:37:40,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 41 Invalid, 1398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1372 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:37:40,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2737 states. [2022-11-16 11:37:40,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2737 to 1531. [2022-11-16 11:37:40,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1531 states, 1530 states have (on average 3.222875816993464) internal successors, (4931), 1530 states have internal predecessors, (4931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:40,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1531 states to 1531 states and 4931 transitions. [2022-11-16 11:37:40,420 INFO L78 Accepts]: Start accepts. Automaton has 1531 states and 4931 transitions. Word has length 33 [2022-11-16 11:37:40,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:37:40,420 INFO L495 AbstractCegarLoop]: Abstraction has 1531 states and 4931 transitions. [2022-11-16 11:37:40,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:40,420 INFO L276 IsEmpty]: Start isEmpty. Operand 1531 states and 4931 transitions. [2022-11-16 11:37:40,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:37:40,422 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:37:40,422 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:40,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2022-11-16 11:37:40,423 INFO L420 AbstractCegarLoop]: === Iteration 216 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:37:40,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:40,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1973179065, now seen corresponding path program 207 times [2022-11-16 11:37:40,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:40,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276984964] [2022-11-16 11:37:40,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:40,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:40,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:41,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:37:41,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:41,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276984964] [2022-11-16 11:37:41,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276984964] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:41,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:41,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-16 11:37:41,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683932573] [2022-11-16 11:37:41,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:41,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 11:37:41,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:41,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 11:37:41,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:37:41,924 INFO L87 Difference]: Start difference. First operand 1531 states and 4931 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:44,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:37:44,341 INFO L93 Difference]: Finished difference Result 2738 states and 8149 transitions. [2022-11-16 11:37:44,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 11:37:44,341 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:37:44,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:37:44,346 INFO L225 Difference]: With dead ends: 2738 [2022-11-16 11:37:44,346 INFO L226 Difference]: Without dead ends: 2723 [2022-11-16 11:37:44,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=238, Invalid=574, Unknown=0, NotChecked=0, Total=812 [2022-11-16 11:37:44,347 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 381 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 1470 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 1500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:37:44,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 35 Invalid, 1500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1470 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-16 11:37:44,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2723 states. [2022-11-16 11:37:44,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2723 to 1539. [2022-11-16 11:37:44,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1539 states, 1538 states have (on average 3.217815344603381) internal successors, (4949), 1538 states have internal predecessors, (4949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:44,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1539 states to 1539 states and 4949 transitions. [2022-11-16 11:37:44,374 INFO L78 Accepts]: Start accepts. Automaton has 1539 states and 4949 transitions. Word has length 33 [2022-11-16 11:37:44,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:37:44,374 INFO L495 AbstractCegarLoop]: Abstraction has 1539 states and 4949 transitions. [2022-11-16 11:37:44,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:44,375 INFO L276 IsEmpty]: Start isEmpty. Operand 1539 states and 4949 transitions. [2022-11-16 11:37:44,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:37:44,377 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:37:44,377 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:44,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2022-11-16 11:37:44,377 INFO L420 AbstractCegarLoop]: === Iteration 217 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:37:44,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:44,378 INFO L85 PathProgramCache]: Analyzing trace with hash -364863883, now seen corresponding path program 208 times [2022-11-16 11:37:44,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:44,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557080463] [2022-11-16 11:37:44,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:44,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:44,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:45,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:37:45,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:45,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557080463] [2022-11-16 11:37:45,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557080463] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:45,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:45,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:37:45,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334868731] [2022-11-16 11:37:45,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:45,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:37:45,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:45,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:37:45,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:37:45,574 INFO L87 Difference]: Start difference. First operand 1539 states and 4949 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:47,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:37:47,561 INFO L93 Difference]: Finished difference Result 2736 states and 8141 transitions. [2022-11-16 11:37:47,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:37:47,561 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:37:47,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:37:47,566 INFO L225 Difference]: With dead ends: 2736 [2022-11-16 11:37:47,566 INFO L226 Difference]: Without dead ends: 2719 [2022-11-16 11:37:47,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=179, Invalid=373, Unknown=0, NotChecked=0, Total=552 [2022-11-16 11:37:47,566 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 245 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 1372 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 1400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:37:47,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 46 Invalid, 1400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1372 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:37:47,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2719 states. [2022-11-16 11:37:47,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2719 to 1535. [2022-11-16 11:37:47,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1535 states, 1534 states have (on average 3.2190352020860495) internal successors, (4938), 1534 states have internal predecessors, (4938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:47,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1535 states to 1535 states and 4938 transitions. [2022-11-16 11:37:47,594 INFO L78 Accepts]: Start accepts. Automaton has 1535 states and 4938 transitions. Word has length 33 [2022-11-16 11:37:47,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:37:47,595 INFO L495 AbstractCegarLoop]: Abstraction has 1535 states and 4938 transitions. [2022-11-16 11:37:47,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:47,595 INFO L276 IsEmpty]: Start isEmpty. Operand 1535 states and 4938 transitions. [2022-11-16 11:37:47,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:37:47,597 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:37:47,597 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:47,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2022-11-16 11:37:47,597 INFO L420 AbstractCegarLoop]: === Iteration 218 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:37:47,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:47,597 INFO L85 PathProgramCache]: Analyzing trace with hash 973424873, now seen corresponding path program 209 times [2022-11-16 11:37:47,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:47,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570998436] [2022-11-16 11:37:47,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:47,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:47,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:48,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:37:48,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:48,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570998436] [2022-11-16 11:37:48,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570998436] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:48,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:48,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:37:48,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525278372] [2022-11-16 11:37:48,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:48,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:37:48,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:48,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:37:48,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:37:48,836 INFO L87 Difference]: Start difference. First operand 1535 states and 4938 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:50,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:37:50,792 INFO L93 Difference]: Finished difference Result 2722 states and 8121 transitions. [2022-11-16 11:37:50,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:37:50,793 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:37:50,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:37:50,797 INFO L225 Difference]: With dead ends: 2722 [2022-11-16 11:37:50,797 INFO L226 Difference]: Without dead ends: 2701 [2022-11-16 11:37:50,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=181, Invalid=371, Unknown=0, NotChecked=0, Total=552 [2022-11-16 11:37:50,798 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 233 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 1284 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 1312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:37:50,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 37 Invalid, 1312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1284 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:37:50,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2701 states. [2022-11-16 11:37:50,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2701 to 1531. [2022-11-16 11:37:50,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1531 states, 1530 states have (on average 3.220261437908497) internal successors, (4927), 1530 states have internal predecessors, (4927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:50,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1531 states to 1531 states and 4927 transitions. [2022-11-16 11:37:50,826 INFO L78 Accepts]: Start accepts. Automaton has 1531 states and 4927 transitions. Word has length 33 [2022-11-16 11:37:50,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:37:50,826 INFO L495 AbstractCegarLoop]: Abstraction has 1531 states and 4927 transitions. [2022-11-16 11:37:50,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:50,827 INFO L276 IsEmpty]: Start isEmpty. Operand 1531 states and 4927 transitions. [2022-11-16 11:37:50,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:37:50,828 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:37:50,828 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:50,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2022-11-16 11:37:50,829 INFO L420 AbstractCegarLoop]: === Iteration 219 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:37:50,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:50,829 INFO L85 PathProgramCache]: Analyzing trace with hash 634216503, now seen corresponding path program 210 times [2022-11-16 11:37:50,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:50,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164604813] [2022-11-16 11:37:50,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:50,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:50,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:52,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:37:52,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:52,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164604813] [2022-11-16 11:37:52,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164604813] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:52,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:52,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:37:52,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236302811] [2022-11-16 11:37:52,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:52,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:37:52,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:52,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:37:52,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:37:52,032 INFO L87 Difference]: Start difference. First operand 1531 states and 4927 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:54,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:37:54,000 INFO L93 Difference]: Finished difference Result 2736 states and 8142 transitions. [2022-11-16 11:37:54,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:37:54,001 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:37:54,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:37:54,005 INFO L225 Difference]: With dead ends: 2736 [2022-11-16 11:37:54,005 INFO L226 Difference]: Without dead ends: 2719 [2022-11-16 11:37:54,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=180, Invalid=372, Unknown=0, NotChecked=0, Total=552 [2022-11-16 11:37:54,006 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 256 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 1172 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 1200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:37:54,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 39 Invalid, 1200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1172 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:37:54,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2719 states. [2022-11-16 11:37:54,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2719 to 1539. [2022-11-16 11:37:54,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1539 states, 1538 states have (on average 3.215214564369311) internal successors, (4945), 1538 states have internal predecessors, (4945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:54,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1539 states to 1539 states and 4945 transitions. [2022-11-16 11:37:54,034 INFO L78 Accepts]: Start accepts. Automaton has 1539 states and 4945 transitions. Word has length 33 [2022-11-16 11:37:54,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:37:54,034 INFO L495 AbstractCegarLoop]: Abstraction has 1539 states and 4945 transitions. [2022-11-16 11:37:54,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:54,035 INFO L276 IsEmpty]: Start isEmpty. Operand 1539 states and 4945 transitions. [2022-11-16 11:37:54,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:37:54,037 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:37:54,037 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:54,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2022-11-16 11:37:54,037 INFO L420 AbstractCegarLoop]: === Iteration 220 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:37:54,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:54,037 INFO L85 PathProgramCache]: Analyzing trace with hash -2055061387, now seen corresponding path program 211 times [2022-11-16 11:37:54,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:54,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012708395] [2022-11-16 11:37:54,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:54,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:54,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:55,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:37:55,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:55,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012708395] [2022-11-16 11:37:55,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012708395] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:55,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:55,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:37:55,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066871569] [2022-11-16 11:37:55,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:55,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:37:55,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:55,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:37:55,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:37:55,335 INFO L87 Difference]: Start difference. First operand 1539 states and 4945 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:57,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:37:57,335 INFO L93 Difference]: Finished difference Result 2732 states and 8130 transitions. [2022-11-16 11:37:57,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:37:57,336 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:37:57,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:37:57,341 INFO L225 Difference]: With dead ends: 2732 [2022-11-16 11:37:57,341 INFO L226 Difference]: Without dead ends: 2715 [2022-11-16 11:37:57,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=178, Invalid=374, Unknown=0, NotChecked=0, Total=552 [2022-11-16 11:37:57,341 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 274 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 1197 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 1225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:37:57,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 39 Invalid, 1225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1197 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:37:57,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2715 states. [2022-11-16 11:37:57,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2715 to 1535. [2022-11-16 11:37:57,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1535 states, 1534 states have (on average 3.2164276401564535) internal successors, (4934), 1534 states have internal predecessors, (4934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:57,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1535 states to 1535 states and 4934 transitions. [2022-11-16 11:37:57,369 INFO L78 Accepts]: Start accepts. Automaton has 1535 states and 4934 transitions. Word has length 33 [2022-11-16 11:37:57,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:37:57,369 INFO L495 AbstractCegarLoop]: Abstraction has 1535 states and 4934 transitions. [2022-11-16 11:37:57,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:57,370 INFO L276 IsEmpty]: Start isEmpty. Operand 1535 states and 4934 transitions. [2022-11-16 11:37:57,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:37:57,372 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:37:57,372 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:57,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2022-11-16 11:37:57,372 INFO L420 AbstractCegarLoop]: === Iteration 221 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:37:57,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:57,372 INFO L85 PathProgramCache]: Analyzing trace with hash -798171687, now seen corresponding path program 212 times [2022-11-16 11:37:57,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:57,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932612730] [2022-11-16 11:37:57,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:57,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:57,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:58,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:37:58,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:58,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932612730] [2022-11-16 11:37:58,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932612730] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:58,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:58,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:37:58,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466945786] [2022-11-16 11:37:58,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:58,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:37:58,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:58,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:37:58,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:37:58,608 INFO L87 Difference]: Start difference. First operand 1535 states and 4934 transitions. Second operand has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:00,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:38:00,488 INFO L93 Difference]: Finished difference Result 2714 states and 8103 transitions. [2022-11-16 11:38:00,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:38:00,488 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-16 11:38:00,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:38:00,493 INFO L225 Difference]: With dead ends: 2714 [2022-11-16 11:38:00,493 INFO L226 Difference]: Without dead ends: 2689 [2022-11-16 11:38:00,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=181, Invalid=371, Unknown=0, NotChecked=0, Total=552 [2022-11-16 11:38:00,494 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 236 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 1182 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 1210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:38:00,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 36 Invalid, 1210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1182 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-16 11:38:00,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2689 states. [2022-11-16 11:38:00,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2689 to 1527. [2022-11-16 11:38:00,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1527 states, 1526 states have (on average 3.221494102228047) internal successors, (4916), 1526 states have internal predecessors, (4916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:00,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1527 states to 1527 states and 4916 transitions. [2022-11-16 11:38:00,521 INFO L78 Accepts]: Start accepts. Automaton has 1527 states and 4916 transitions. Word has length 33 [2022-11-16 11:38:00,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:38:00,522 INFO L495 AbstractCegarLoop]: Abstraction has 1527 states and 4916 transitions. [2022-11-16 11:38:00,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:38:00,522 INFO L276 IsEmpty]: Start isEmpty. Operand 1527 states and 4916 transitions. [2022-11-16 11:38:00,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 11:38:00,523 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:38:00,524 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:38:00,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2022-11-16 11:38:00,524 INFO L420 AbstractCegarLoop]: === Iteration 222 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2022-11-16 11:38:00,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:00,524 INFO L85 PathProgramCache]: Analyzing trace with hash -55373015, now seen corresponding path program 213 times [2022-11-16 11:38:00,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:38:00,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855364550] [2022-11-16 11:38:00,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:00,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:38:00,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:38:01,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:38:01,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:38:01,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855364550] [2022-11-16 11:38:01,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855364550] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:01,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:01,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-16 11:38:01,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576052409] [2022-11-16 11:38:01,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:01,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 11:38:01,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:38:01,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 11:38:01,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:38:01,976 INFO L87 Difference]: Start difference. First operand 1527 states and 4916 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)