./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa --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 ea94c2a7f5c98d387db22a0b269794366125ef96ca4390d29fd777c1f058153c --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 23:29:37,757 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 23:29:37,758 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 23:29:37,789 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 23:29:37,789 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 23:29:37,791 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 23:29:37,792 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 23:29:37,795 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 23:29:37,797 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 23:29:37,798 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 23:29:37,799 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 23:29:37,800 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 23:29:37,801 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 23:29:37,802 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 23:29:37,803 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 23:29:37,805 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 23:29:37,806 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 23:29:37,807 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 23:29:37,809 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 23:29:37,811 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 23:29:37,813 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 23:29:37,814 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 23:29:37,815 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 23:29:37,816 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 23:29:37,820 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 23:29:37,820 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 23:29:37,821 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 23:29:37,822 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 23:29:37,822 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 23:29:37,823 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 23:29:37,824 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 23:29:37,824 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 23:29:37,825 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 23:29:37,825 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 23:29:37,826 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 23:29:37,826 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 23:29:37,827 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 23:29:37,827 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 23:29:37,827 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 23:29:37,827 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 23:29:37,828 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 23:29:37,828 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-12-06 23:29:37,849 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 23:29:37,850 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 23:29:37,850 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 23:29:37,850 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 23:29:37,851 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 23:29:37,851 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 23:29:37,852 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 23:29:37,852 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 23:29:37,852 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 23:29:37,852 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 23:29:37,852 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 23:29:37,853 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 23:29:37,853 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 23:29:37,853 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 23:29:37,853 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 23:29:37,853 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-06 23:29:37,853 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-06 23:29:37,854 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-06 23:29:37,854 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 23:29:37,854 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-06 23:29:37,854 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 23:29:37,854 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 23:29:37,854 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 23:29:37,855 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 23:29:37,855 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 23:29:37,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 23:29:37,855 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 23:29:37,855 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 23:29:37,856 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 23:29:37,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 23:29:37,856 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 23:29:37,856 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_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea94c2a7f5c98d387db22a0b269794366125ef96ca4390d29fd777c1f058153c [2021-12-06 23:29:38,043 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 23:29:38,060 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 23:29:38,062 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 23:29:38,063 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 23:29:38,064 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 23:29:38,065 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c [2021-12-06 23:29:38,107 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/data/fae360e74/c127426373504b4cb82a2e62a59bd603/FLAG26f0dcd92 [2021-12-06 23:29:38,509 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 23:29:38,510 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c [2021-12-06 23:29:38,518 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/data/fae360e74/c127426373504b4cb82a2e62a59bd603/FLAG26f0dcd92 [2021-12-06 23:29:38,528 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/data/fae360e74/c127426373504b4cb82a2e62a59bd603 [2021-12-06 23:29:38,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 23:29:38,531 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 23:29:38,533 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 23:29:38,533 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 23:29:38,535 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 23:29:38,536 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 11:29:38" (1/1) ... [2021-12-06 23:29:38,536 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8a8d89c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:29:38, skipping insertion in model container [2021-12-06 23:29:38,536 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 11:29:38" (1/1) ... [2021-12-06 23:29:38,541 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 23:29:38,582 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 23:29:38,699 WARN L230 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_6329217b-4022-4001-a9fd-5301db493f68/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c[2713,2726] [2021-12-06 23:29:38,763 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 23:29:38,770 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 23:29:38,781 WARN L230 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_6329217b-4022-4001-a9fd-5301db493f68/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c[2713,2726] [2021-12-06 23:29:38,820 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 23:29:38,832 INFO L208 MainTranslator]: Completed translation [2021-12-06 23:29:38,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:29:38 WrapperNode [2021-12-06 23:29:38,832 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 23:29:38,833 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 23:29:38,833 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 23:29:38,833 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 23:29:38,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:29:38" (1/1) ... [2021-12-06 23:29:38,849 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:29:38" (1/1) ... [2021-12-06 23:29:38,885 INFO L137 Inliner]: procedures = 37, calls = 62, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 916 [2021-12-06 23:29:38,886 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 23:29:38,886 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 23:29:38,886 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 23:29:38,886 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 23:29:38,892 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:29:38" (1/1) ... [2021-12-06 23:29:38,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:29:38" (1/1) ... [2021-12-06 23:29:38,897 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:29:38" (1/1) ... [2021-12-06 23:29:38,897 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:29:38" (1/1) ... [2021-12-06 23:29:38,910 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:29:38" (1/1) ... [2021-12-06 23:29:38,917 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:29:38" (1/1) ... [2021-12-06 23:29:38,919 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:29:38" (1/1) ... [2021-12-06 23:29:38,925 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 23:29:38,925 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 23:29:38,925 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 23:29:38,926 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 23:29:38,926 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:29:38" (1/1) ... [2021-12-06 23:29:38,932 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 23:29:38,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:29:38,950 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 23:29:38,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 23:29:38,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 23:29:38,979 INFO L130 BoogieDeclarations]: Found specification of procedure IoSetDeviceInterfaceState [2021-12-06 23:29:38,979 INFO L138 BoogieDeclarations]: Found implementation of procedure IoSetDeviceInterfaceState [2021-12-06 23:29:38,979 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2021-12-06 23:29:38,979 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2021-12-06 23:29:38,980 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2021-12-06 23:29:38,980 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2021-12-06 23:29:38,980 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2021-12-06 23:29:38,980 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2021-12-06 23:29:38,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 23:29:38,980 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2021-12-06 23:29:38,980 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2021-12-06 23:29:38,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 23:29:38,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 23:29:39,096 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 23:29:39,097 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 23:29:39,104 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 23:29:39,162 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2021-12-06 23:29:39,163 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2021-12-06 23:29:39,163 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 23:29:39,175 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-12-06 23:29:39,175 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-12-06 23:29:39,187 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 23:29:39,192 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 23:29:39,198 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 23:29:39,202 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 23:29:39,203 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 23:29:39,207 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 23:29:39,208 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 23:29:39,209 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 23:29:39,213 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 23:29:39,524 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##86: assume !false; [2021-12-06 23:29:39,524 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume false; [2021-12-06 23:29:39,524 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##171: assume !false; [2021-12-06 23:29:39,525 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##170: assume false; [2021-12-06 23:29:39,525 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##75: assume !false; [2021-12-06 23:29:39,525 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##74: assume false; [2021-12-06 23:29:39,525 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##45: assume !false; [2021-12-06 23:29:39,525 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume false; [2021-12-06 23:29:39,525 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##32: assume !false; [2021-12-06 23:29:39,525 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##31: assume false; [2021-12-06 23:29:39,525 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume false; [2021-12-06 23:29:39,526 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !false; [2021-12-06 23:29:39,526 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##109: assume false; [2021-12-06 23:29:39,526 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##110: assume !false; [2021-12-06 23:29:39,526 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##119: assume !false; [2021-12-06 23:29:39,526 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##118: assume false; [2021-12-06 23:29:39,526 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##122: assume false; [2021-12-06 23:29:39,526 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##123: assume !false; [2021-12-06 23:29:39,527 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 23:29:39,549 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !false; [2021-12-06 23:29:39,549 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume false; [2021-12-06 23:29:39,554 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 23:29:39,563 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 23:29:39,563 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-06 23:29:39,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:29:39 BoogieIcfgContainer [2021-12-06 23:29:39,566 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 23:29:39,567 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 23:29:39,568 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 23:29:39,571 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 23:29:39,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 11:29:38" (1/3) ... [2021-12-06 23:29:39,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ba81b9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 11:29:39, skipping insertion in model container [2021-12-06 23:29:39,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:29:38" (2/3) ... [2021-12-06 23:29:39,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ba81b9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 11:29:39, skipping insertion in model container [2021-12-06 23:29:39,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:29:39" (3/3) ... [2021-12-06 23:29:39,574 INFO L111 eAbstractionObserver]: Analyzing ICFG floppy_simpl3.cil-1.c [2021-12-06 23:29:39,579 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 23:29:39,579 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-06 23:29:39,613 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 23:29:39,620 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 23:29:39,620 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-06 23:29:39,636 INFO L276 IsEmpty]: Start isEmpty. Operand has 239 states, 193 states have (on average 1.4870466321243523) internal successors, (287), 216 states have internal predecessors, (287), 38 states have call successors, (38), 5 states have call predecessors, (38), 5 states have return successors, (38), 32 states have call predecessors, (38), 38 states have call successors, (38) [2021-12-06 23:29:39,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-12-06 23:29:39,641 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:39,641 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:39,642 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:39,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:39,646 INFO L85 PathProgramCache]: Analyzing trace with hash -379437559, now seen corresponding path program 1 times [2021-12-06 23:29:39,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:29:39,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713290095] [2021-12-06 23:29:39,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:39,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:29:39,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:39,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:39,795 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:29:39,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713290095] [2021-12-06 23:29:39,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713290095] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:39,796 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:39,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 23:29:39,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121513499] [2021-12-06 23:29:39,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:39,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:29:39,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:29:39,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:29:39,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:29:39,824 INFO L87 Difference]: Start difference. First operand has 239 states, 193 states have (on average 1.4870466321243523) internal successors, (287), 216 states have internal predecessors, (287), 38 states have call successors, (38), 5 states have call predecessors, (38), 5 states have return successors, (38), 32 states have call predecessors, (38), 38 states have call successors, (38) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:29:39,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:39,874 INFO L93 Difference]: Finished difference Result 237 states and 338 transitions. [2021-12-06 23:29:39,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:29:39,876 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-12-06 23:29:39,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:39,886 INFO L225 Difference]: With dead ends: 237 [2021-12-06 23:29:39,886 INFO L226 Difference]: Without dead ends: 235 [2021-12-06 23:29:39,887 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:29:39,890 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 194 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:39,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 449 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:29:39,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2021-12-06 23:29:39,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 235. [2021-12-06 23:29:39,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 191 states have (on average 1.4607329842931938) internal successors, (279), 212 states have internal predecessors, (279), 38 states have call successors, (38), 5 states have call predecessors, (38), 4 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2021-12-06 23:29:39,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 336 transitions. [2021-12-06 23:29:39,936 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 336 transitions. Word has length 8 [2021-12-06 23:29:39,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:39,937 INFO L470 AbstractCegarLoop]: Abstraction has 235 states and 336 transitions. [2021-12-06 23:29:39,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:29:39,937 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 336 transitions. [2021-12-06 23:29:39,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-06 23:29:39,938 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:39,938 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:39,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 23:29:39,938 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:39,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:39,939 INFO L85 PathProgramCache]: Analyzing trace with hash 229440231, now seen corresponding path program 1 times [2021-12-06 23:29:39,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:29:39,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631419333] [2021-12-06 23:29:39,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:39,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:29:39,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:39,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:39,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:29:39,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631419333] [2021-12-06 23:29:39,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631419333] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:39,982 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:39,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 23:29:39,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805025108] [2021-12-06 23:29:39,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:39,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:29:39,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:29:39,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:29:39,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:29:39,984 INFO L87 Difference]: Start difference. First operand 235 states and 336 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:29:40,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:40,026 INFO L93 Difference]: Finished difference Result 234 states and 335 transitions. [2021-12-06 23:29:40,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:29:40,027 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-12-06 23:29:40,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:40,029 INFO L225 Difference]: With dead ends: 234 [2021-12-06 23:29:40,029 INFO L226 Difference]: Without dead ends: 231 [2021-12-06 23:29:40,029 INFO L932 BasicCegarLoop]: 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 [2021-12-06 23:29:40,030 INFO L933 BasicCegarLoop]: 335 mSDtfsCounter, 214 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:40,031 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 393 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:29:40,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-12-06 23:29:40,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2021-12-06 23:29:40,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 188 states have (on average 1.425531914893617) internal successors, (268), 208 states have internal predecessors, (268), 38 states have call successors, (38), 5 states have call predecessors, (38), 4 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2021-12-06 23:29:40,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 325 transitions. [2021-12-06 23:29:40,045 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 325 transitions. Word has length 11 [2021-12-06 23:29:40,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:40,045 INFO L470 AbstractCegarLoop]: Abstraction has 231 states and 325 transitions. [2021-12-06 23:29:40,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:29:40,045 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 325 transitions. [2021-12-06 23:29:40,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-06 23:29:40,046 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:40,046 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:40,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 23:29:40,046 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:40,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:40,047 INFO L85 PathProgramCache]: Analyzing trace with hash 24656821, now seen corresponding path program 1 times [2021-12-06 23:29:40,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:29:40,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35895161] [2021-12-06 23:29:40,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:40,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:29:40,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:40,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:40,104 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:29:40,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35895161] [2021-12-06 23:29:40,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35895161] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:40,105 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:40,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 23:29:40,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752067772] [2021-12-06 23:29:40,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:40,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:29:40,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:29:40,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:29:40,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:29:40,106 INFO L87 Difference]: Start difference. First operand 231 states and 325 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:29:40,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:40,177 INFO L93 Difference]: Finished difference Result 348 states and 488 transitions. [2021-12-06 23:29:40,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:29:40,177 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-12-06 23:29:40,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:40,180 INFO L225 Difference]: With dead ends: 348 [2021-12-06 23:29:40,184 INFO L226 Difference]: Without dead ends: 347 [2021-12-06 23:29:40,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:29:40,186 INFO L933 BasicCegarLoop]: 418 mSDtfsCounter, 254 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:40,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [254 Valid, 592 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:29:40,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2021-12-06 23:29:40,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 328. [2021-12-06 23:29:40,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 282 states have (on average 1.3652482269503545) internal successors, (385), 287 states have internal predecessors, (385), 38 states have call successors, (38), 9 states have call predecessors, (38), 7 states have return successors, (40), 32 states have call predecessors, (40), 27 states have call successors, (40) [2021-12-06 23:29:40,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 463 transitions. [2021-12-06 23:29:40,205 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 463 transitions. Word has length 18 [2021-12-06 23:29:40,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:40,206 INFO L470 AbstractCegarLoop]: Abstraction has 328 states and 463 transitions. [2021-12-06 23:29:40,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:29:40,206 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 463 transitions. [2021-12-06 23:29:40,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-06 23:29:40,207 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:40,207 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:40,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 23:29:40,207 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:40,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:40,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1035240063, now seen corresponding path program 1 times [2021-12-06 23:29:40,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:29:40,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635710421] [2021-12-06 23:29:40,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:40,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:29:40,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:40,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:40,256 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:29:40,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635710421] [2021-12-06 23:29:40,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635710421] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:40,257 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:40,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 23:29:40,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062168185] [2021-12-06 23:29:40,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:40,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:29:40,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:29:40,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:29:40,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:29:40,258 INFO L87 Difference]: Start difference. First operand 328 states and 463 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:29:40,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:40,276 INFO L93 Difference]: Finished difference Result 516 states and 723 transitions. [2021-12-06 23:29:40,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:29:40,277 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-12-06 23:29:40,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:40,280 INFO L225 Difference]: With dead ends: 516 [2021-12-06 23:29:40,280 INFO L226 Difference]: Without dead ends: 516 [2021-12-06 23:29:40,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:29:40,281 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 276 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:40,282 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [276 Valid, 485 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:29:40,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2021-12-06 23:29:40,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 487. [2021-12-06 23:29:40,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 424 states have (on average 1.3632075471698113) internal successors, (578), 426 states have internal predecessors, (578), 48 states have call successors, (48), 17 states have call predecessors, (48), 14 states have return successors, (61), 44 states have call predecessors, (61), 39 states have call successors, (61) [2021-12-06 23:29:40,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 687 transitions. [2021-12-06 23:29:40,302 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 687 transitions. Word has length 19 [2021-12-06 23:29:40,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:40,302 INFO L470 AbstractCegarLoop]: Abstraction has 487 states and 687 transitions. [2021-12-06 23:29:40,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:29:40,303 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 687 transitions. [2021-12-06 23:29:40,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-06 23:29:40,304 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:40,304 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:40,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 23:29:40,304 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:40,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:40,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1224032757, now seen corresponding path program 1 times [2021-12-06 23:29:40,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:29:40,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420134328] [2021-12-06 23:29:40,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:40,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:29:40,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:40,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:40,342 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:29:40,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420134328] [2021-12-06 23:29:40,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420134328] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:40,343 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:40,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 23:29:40,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212211957] [2021-12-06 23:29:40,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:40,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:29:40,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:29:40,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:29:40,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:29:40,344 INFO L87 Difference]: Start difference. First operand 487 states and 687 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:29:40,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:40,364 INFO L93 Difference]: Finished difference Result 558 states and 775 transitions. [2021-12-06 23:29:40,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:29:40,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-12-06 23:29:40,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:40,368 INFO L225 Difference]: With dead ends: 558 [2021-12-06 23:29:40,368 INFO L226 Difference]: Without dead ends: 558 [2021-12-06 23:29:40,368 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:29:40,369 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 277 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:40,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [277 Valid, 389 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:29:40,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2021-12-06 23:29:40,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 531. [2021-12-06 23:29:40,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 462 states have (on average 1.3636363636363635) internal successors, (630), 470 states have internal predecessors, (630), 50 states have call successors, (50), 20 states have call predecessors, (50), 18 states have return successors, (65), 42 states have call predecessors, (65), 42 states have call successors, (65) [2021-12-06 23:29:40,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 745 transitions. [2021-12-06 23:29:40,386 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 745 transitions. Word has length 22 [2021-12-06 23:29:40,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:40,387 INFO L470 AbstractCegarLoop]: Abstraction has 531 states and 745 transitions. [2021-12-06 23:29:40,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:29:40,387 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 745 transitions. [2021-12-06 23:29:40,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-12-06 23:29:40,388 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:40,388 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:40,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 23:29:40,389 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:40,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:40,389 INFO L85 PathProgramCache]: Analyzing trace with hash 664756023, now seen corresponding path program 1 times [2021-12-06 23:29:40,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:29:40,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323667538] [2021-12-06 23:29:40,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:40,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:29:40,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:40,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:40,425 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:29:40,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323667538] [2021-12-06 23:29:40,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323667538] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:40,425 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:40,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 23:29:40,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738562987] [2021-12-06 23:29:40,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:40,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:29:40,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:29:40,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:29:40,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:29:40,426 INFO L87 Difference]: Start difference. First operand 531 states and 745 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:29:40,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:40,485 INFO L93 Difference]: Finished difference Result 813 states and 1141 transitions. [2021-12-06 23:29:40,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:29:40,486 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-12-06 23:29:40,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:40,491 INFO L225 Difference]: With dead ends: 813 [2021-12-06 23:29:40,492 INFO L226 Difference]: Without dead ends: 813 [2021-12-06 23:29:40,492 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:29:40,493 INFO L933 BasicCegarLoop]: 410 mSDtfsCounter, 123 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:40,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 671 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:29:40,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2021-12-06 23:29:40,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 622. [2021-12-06 23:29:40,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 547 states have (on average 1.3711151736745886) internal successors, (750), 558 states have internal predecessors, (750), 52 states have call successors, (52), 22 states have call predecessors, (52), 22 states have return successors, (72), 43 states have call predecessors, (72), 44 states have call successors, (72) [2021-12-06 23:29:40,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 874 transitions. [2021-12-06 23:29:40,524 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 874 transitions. Word has length 27 [2021-12-06 23:29:40,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:40,524 INFO L470 AbstractCegarLoop]: Abstraction has 622 states and 874 transitions. [2021-12-06 23:29:40,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:29:40,525 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 874 transitions. [2021-12-06 23:29:40,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-06 23:29:40,526 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:40,526 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:40,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 23:29:40,527 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:40,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:40,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1105507547, now seen corresponding path program 1 times [2021-12-06 23:29:40,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:29:40,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427891418] [2021-12-06 23:29:40,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:40,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:29:40,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:40,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:40,604 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:29:40,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427891418] [2021-12-06 23:29:40,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427891418] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:40,604 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:40,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 23:29:40,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568665655] [2021-12-06 23:29:40,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:40,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 23:29:40,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:29:40,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 23:29:40,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 23:29:40,606 INFO L87 Difference]: Start difference. First operand 622 states and 874 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:29:40,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:40,754 INFO L93 Difference]: Finished difference Result 655 states and 906 transitions. [2021-12-06 23:29:40,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 23:29:40,754 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-12-06 23:29:40,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:40,758 INFO L225 Difference]: With dead ends: 655 [2021-12-06 23:29:40,758 INFO L226 Difference]: Without dead ends: 655 [2021-12-06 23:29:40,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:29:40,759 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 518 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:40,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [521 Valid, 535 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:29:40,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2021-12-06 23:29:40,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 613. [2021-12-06 23:29:40,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 613 states, 538 states have (on average 1.3550185873605949) internal successors, (729), 549 states have internal predecessors, (729), 52 states have call successors, (52), 22 states have call predecessors, (52), 22 states have return successors, (72), 43 states have call predecessors, (72), 44 states have call successors, (72) [2021-12-06 23:29:40,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 853 transitions. [2021-12-06 23:29:40,775 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 853 transitions. Word has length 28 [2021-12-06 23:29:40,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:40,775 INFO L470 AbstractCegarLoop]: Abstraction has 613 states and 853 transitions. [2021-12-06 23:29:40,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:29:40,776 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 853 transitions. [2021-12-06 23:29:40,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-06 23:29:40,777 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:40,777 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:40,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 23:29:40,777 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:40,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:40,777 INFO L85 PathProgramCache]: Analyzing trace with hash -647747679, now seen corresponding path program 1 times [2021-12-06 23:29:40,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:29:40,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045309620] [2021-12-06 23:29:40,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:40,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:29:40,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:40,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 23:29:40,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:40,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:40,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:29:40,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045309620] [2021-12-06 23:29:40,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045309620] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:40,813 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:40,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 23:29:40,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991050921] [2021-12-06 23:29:40,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:40,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 23:29:40,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:29:40,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 23:29:40,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 23:29:40,814 INFO L87 Difference]: Start difference. First operand 613 states and 853 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:40,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:40,901 INFO L93 Difference]: Finished difference Result 661 states and 916 transitions. [2021-12-06 23:29:40,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 23:29:40,901 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2021-12-06 23:29:40,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:40,905 INFO L225 Difference]: With dead ends: 661 [2021-12-06 23:29:40,905 INFO L226 Difference]: Without dead ends: 661 [2021-12-06 23:29:40,905 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:29:40,906 INFO L933 BasicCegarLoop]: 289 mSDtfsCounter, 67 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:40,906 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 743 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:29:40,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2021-12-06 23:29:40,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 640. [2021-12-06 23:29:40,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 565 states have (on average 1.3539823008849559) internal successors, (765), 575 states have internal predecessors, (765), 52 states have call successors, (52), 22 states have call predecessors, (52), 22 states have return successors, (72), 43 states have call predecessors, (72), 44 states have call successors, (72) [2021-12-06 23:29:40,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 889 transitions. [2021-12-06 23:29:40,922 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 889 transitions. Word has length 29 [2021-12-06 23:29:40,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:40,922 INFO L470 AbstractCegarLoop]: Abstraction has 640 states and 889 transitions. [2021-12-06 23:29:40,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:40,922 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 889 transitions. [2021-12-06 23:29:40,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-06 23:29:40,923 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:40,923 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:40,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-06 23:29:40,923 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:40,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:40,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1847797176, now seen corresponding path program 1 times [2021-12-06 23:29:40,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:29:40,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958910468] [2021-12-06 23:29:40,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:40,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:29:40,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:40,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 23:29:40,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:40,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:40,989 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:29:40,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958910468] [2021-12-06 23:29:40,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958910468] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:40,989 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:40,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:29:40,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458478463] [2021-12-06 23:29:40,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:40,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:29:40,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:29:40,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:29:40,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:29:40,991 INFO L87 Difference]: Start difference. First operand 640 states and 889 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:41,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:41,162 INFO L93 Difference]: Finished difference Result 661 states and 914 transitions. [2021-12-06 23:29:41,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 23:29:41,163 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2021-12-06 23:29:41,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:41,167 INFO L225 Difference]: With dead ends: 661 [2021-12-06 23:29:41,167 INFO L226 Difference]: Without dead ends: 661 [2021-12-06 23:29:41,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-06 23:29:41,168 INFO L933 BasicCegarLoop]: 288 mSDtfsCounter, 382 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:41,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [389 Valid, 918 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:29:41,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2021-12-06 23:29:41,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 640. [2021-12-06 23:29:41,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 565 states have (on average 1.3504424778761062) internal successors, (763), 575 states have internal predecessors, (763), 52 states have call successors, (52), 22 states have call predecessors, (52), 22 states have return successors, (72), 43 states have call predecessors, (72), 44 states have call successors, (72) [2021-12-06 23:29:41,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 887 transitions. [2021-12-06 23:29:41,190 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 887 transitions. Word has length 30 [2021-12-06 23:29:41,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:41,191 INFO L470 AbstractCegarLoop]: Abstraction has 640 states and 887 transitions. [2021-12-06 23:29:41,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:41,191 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 887 transitions. [2021-12-06 23:29:41,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-06 23:29:41,192 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:41,192 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:41,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-06 23:29:41,193 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:41,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:41,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1158944726, now seen corresponding path program 1 times [2021-12-06 23:29:41,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:29:41,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001197022] [2021-12-06 23:29:41,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:41,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:29:41,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:41,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:41,225 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:29:41,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001197022] [2021-12-06 23:29:41,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001197022] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:41,225 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:41,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 23:29:41,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681685111] [2021-12-06 23:29:41,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:41,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:29:41,226 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:29:41,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:29:41,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:29:41,226 INFO L87 Difference]: Start difference. First operand 640 states and 887 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:29:41,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:41,264 INFO L93 Difference]: Finished difference Result 652 states and 903 transitions. [2021-12-06 23:29:41,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:29:41,265 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-12-06 23:29:41,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:41,268 INFO L225 Difference]: With dead ends: 652 [2021-12-06 23:29:41,268 INFO L226 Difference]: Without dead ends: 652 [2021-12-06 23:29:41,268 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:29:41,269 INFO L933 BasicCegarLoop]: 309 mSDtfsCounter, 16 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:41,269 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 553 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:29:41,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2021-12-06 23:29:41,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 651. [2021-12-06 23:29:41,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 651 states, 576 states have (on average 1.3489583333333333) internal successors, (777), 585 states have internal predecessors, (777), 52 states have call successors, (52), 23 states have call predecessors, (52), 22 states have return successors, (72), 43 states have call predecessors, (72), 44 states have call successors, (72) [2021-12-06 23:29:41,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 901 transitions. [2021-12-06 23:29:41,284 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 901 transitions. Word has length 30 [2021-12-06 23:29:41,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:41,284 INFO L470 AbstractCegarLoop]: Abstraction has 651 states and 901 transitions. [2021-12-06 23:29:41,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:29:41,284 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 901 transitions. [2021-12-06 23:29:41,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-12-06 23:29:41,285 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:41,285 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:41,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-06 23:29:41,286 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:41,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:41,286 INFO L85 PathProgramCache]: Analyzing trace with hash 558422765, now seen corresponding path program 1 times [2021-12-06 23:29:41,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:29:41,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096510444] [2021-12-06 23:29:41,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:41,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:29:41,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:41,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 23:29:41,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:41,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:41,343 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:29:41,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096510444] [2021-12-06 23:29:41,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096510444] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:41,343 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:41,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:29:41,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775149438] [2021-12-06 23:29:41,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:41,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:29:41,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:29:41,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:29:41,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:29:41,345 INFO L87 Difference]: Start difference. First operand 651 states and 901 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:41,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:41,505 INFO L93 Difference]: Finished difference Result 672 states and 926 transitions. [2021-12-06 23:29:41,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 23:29:41,506 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2021-12-06 23:29:41,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:41,509 INFO L225 Difference]: With dead ends: 672 [2021-12-06 23:29:41,509 INFO L226 Difference]: Without dead ends: 672 [2021-12-06 23:29:41,509 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-06 23:29:41,510 INFO L933 BasicCegarLoop]: 290 mSDtfsCounter, 381 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:41,510 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [388 Valid, 920 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:29:41,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2021-12-06 23:29:41,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 651. [2021-12-06 23:29:41,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 651 states, 576 states have (on average 1.3454861111111112) internal successors, (775), 585 states have internal predecessors, (775), 52 states have call successors, (52), 23 states have call predecessors, (52), 22 states have return successors, (72), 43 states have call predecessors, (72), 44 states have call successors, (72) [2021-12-06 23:29:41,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 899 transitions. [2021-12-06 23:29:41,524 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 899 transitions. Word has length 31 [2021-12-06 23:29:41,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:41,524 INFO L470 AbstractCegarLoop]: Abstraction has 651 states and 899 transitions. [2021-12-06 23:29:41,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:41,524 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 899 transitions. [2021-12-06 23:29:41,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-06 23:29:41,525 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:41,525 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:41,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-06 23:29:41,525 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:41,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:41,526 INFO L85 PathProgramCache]: Analyzing trace with hash 186689025, now seen corresponding path program 1 times [2021-12-06 23:29:41,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:29:41,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293889133] [2021-12-06 23:29:41,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:41,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:29:41,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:41,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 23:29:41,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:41,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:41,556 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:29:41,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293889133] [2021-12-06 23:29:41,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293889133] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:41,556 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:41,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 23:29:41,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962828660] [2021-12-06 23:29:41,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:41,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 23:29:41,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:29:41,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 23:29:41,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:29:41,557 INFO L87 Difference]: Start difference. First operand 651 states and 899 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:41,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:41,641 INFO L93 Difference]: Finished difference Result 679 states and 933 transitions. [2021-12-06 23:29:41,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 23:29:41,641 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2021-12-06 23:29:41,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:41,646 INFO L225 Difference]: With dead ends: 679 [2021-12-06 23:29:41,646 INFO L226 Difference]: Without dead ends: 666 [2021-12-06 23:29:41,646 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:29:41,647 INFO L933 BasicCegarLoop]: 298 mSDtfsCounter, 52 mSDsluCounter, 785 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 1083 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:41,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 1083 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:29:41,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2021-12-06 23:29:41,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 649. [2021-12-06 23:29:41,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 575 states have (on average 1.3443478260869566) internal successors, (773), 584 states have internal predecessors, (773), 51 states have call successors, (51), 23 states have call predecessors, (51), 22 states have return successors, (71), 42 states have call predecessors, (71), 43 states have call successors, (71) [2021-12-06 23:29:41,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 895 transitions. [2021-12-06 23:29:41,666 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 895 transitions. Word has length 32 [2021-12-06 23:29:41,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:41,666 INFO L470 AbstractCegarLoop]: Abstraction has 649 states and 895 transitions. [2021-12-06 23:29:41,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:41,666 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 895 transitions. [2021-12-06 23:29:41,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-12-06 23:29:41,667 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:41,667 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:41,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-06 23:29:41,667 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:41,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:41,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1105645113, now seen corresponding path program 1 times [2021-12-06 23:29:41,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:29:41,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314501067] [2021-12-06 23:29:41,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:41,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:29:41,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:41,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:41,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:29:41,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314501067] [2021-12-06 23:29:41,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314501067] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:41,698 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:41,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 23:29:41,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390798776] [2021-12-06 23:29:41,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:41,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:29:41,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:29:41,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:29:41,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:29:41,699 INFO L87 Difference]: Start difference. First operand 649 states and 895 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:29:41,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:41,732 INFO L93 Difference]: Finished difference Result 657 states and 906 transitions. [2021-12-06 23:29:41,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:29:41,732 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-12-06 23:29:41,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:41,735 INFO L225 Difference]: With dead ends: 657 [2021-12-06 23:29:41,735 INFO L226 Difference]: Without dead ends: 657 [2021-12-06 23:29:41,736 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:29:41,736 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 5 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:41,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 564 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:29:41,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2021-12-06 23:29:41,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 657. [2021-12-06 23:29:41,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 583 states have (on average 1.3447684391080617) internal successors, (784), 592 states have internal predecessors, (784), 51 states have call successors, (51), 23 states have call predecessors, (51), 22 states have return successors, (71), 42 states have call predecessors, (71), 43 states have call successors, (71) [2021-12-06 23:29:41,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 906 transitions. [2021-12-06 23:29:41,751 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 906 transitions. Word has length 34 [2021-12-06 23:29:41,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:41,751 INFO L470 AbstractCegarLoop]: Abstraction has 657 states and 906 transitions. [2021-12-06 23:29:41,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:29:41,751 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 906 transitions. [2021-12-06 23:29:41,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-12-06 23:29:41,752 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:41,752 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:41,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-06 23:29:41,752 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:41,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:41,753 INFO L85 PathProgramCache]: Analyzing trace with hash -426823703, now seen corresponding path program 1 times [2021-12-06 23:29:41,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:29:41,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993190262] [2021-12-06 23:29:41,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:41,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:29:41,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:41,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 23:29:41,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:41,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:41,789 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:29:41,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993190262] [2021-12-06 23:29:41,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993190262] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:41,789 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:41,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 23:29:41,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952251630] [2021-12-06 23:29:41,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:41,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 23:29:41,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:29:41,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 23:29:41,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:29:41,790 INFO L87 Difference]: Start difference. First operand 657 states and 906 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:41,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:41,941 INFO L93 Difference]: Finished difference Result 482 states and 635 transitions. [2021-12-06 23:29:41,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 23:29:41,941 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2021-12-06 23:29:41,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:41,944 INFO L225 Difference]: With dead ends: 482 [2021-12-06 23:29:41,944 INFO L226 Difference]: Without dead ends: 482 [2021-12-06 23:29:41,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:29:41,944 INFO L933 BasicCegarLoop]: 350 mSDtfsCounter, 385 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 831 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:41,945 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [387 Valid, 831 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:29:41,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2021-12-06 23:29:41,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 441. [2021-12-06 23:29:41,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 388 states have (on average 1.3144329896907216) internal successors, (510), 397 states have internal predecessors, (510), 36 states have call successors, (36), 16 states have call predecessors, (36), 16 states have return successors, (39), 28 states have call predecessors, (39), 28 states have call successors, (39) [2021-12-06 23:29:41,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 585 transitions. [2021-12-06 23:29:41,954 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 585 transitions. Word has length 38 [2021-12-06 23:29:41,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:41,954 INFO L470 AbstractCegarLoop]: Abstraction has 441 states and 585 transitions. [2021-12-06 23:29:41,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:41,955 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 585 transitions. [2021-12-06 23:29:41,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-12-06 23:29:41,955 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:41,956 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:41,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-06 23:29:41,956 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:41,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:41,956 INFO L85 PathProgramCache]: Analyzing trace with hash -116150226, now seen corresponding path program 1 times [2021-12-06 23:29:41,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:29:41,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290108814] [2021-12-06 23:29:41,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:41,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:29:41,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:41,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 23:29:41,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:42,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:42,047 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:29:42,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290108814] [2021-12-06 23:29:42,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290108814] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:42,047 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:42,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 23:29:42,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547840751] [2021-12-06 23:29:42,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:42,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 23:29:42,047 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:29:42,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 23:29:42,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:29:42,048 INFO L87 Difference]: Start difference. First operand 441 states and 585 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:42,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:42,168 INFO L93 Difference]: Finished difference Result 436 states and 573 transitions. [2021-12-06 23:29:42,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 23:29:42,168 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41 [2021-12-06 23:29:42,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:42,170 INFO L225 Difference]: With dead ends: 436 [2021-12-06 23:29:42,170 INFO L226 Difference]: Without dead ends: 436 [2021-12-06 23:29:42,171 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-06 23:29:42,171 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 74 mSDsluCounter, 1318 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 1624 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:42,171 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 1624 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:29:42,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2021-12-06 23:29:42,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 424. [2021-12-06 23:29:42,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 372 states have (on average 1.303763440860215) internal successors, (485), 380 states have internal predecessors, (485), 35 states have call successors, (35), 16 states have call predecessors, (35), 16 states have return successors, (39), 28 states have call predecessors, (39), 28 states have call successors, (39) [2021-12-06 23:29:42,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 559 transitions. [2021-12-06 23:29:42,180 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 559 transitions. Word has length 41 [2021-12-06 23:29:42,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:42,180 INFO L470 AbstractCegarLoop]: Abstraction has 424 states and 559 transitions. [2021-12-06 23:29:42,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:42,180 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 559 transitions. [2021-12-06 23:29:42,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-12-06 23:29:42,181 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:42,181 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:42,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-06 23:29:42,181 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:42,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:42,182 INFO L85 PathProgramCache]: Analyzing trace with hash 379915809, now seen corresponding path program 1 times [2021-12-06 23:29:42,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:29:42,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695014130] [2021-12-06 23:29:42,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:42,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:29:42,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:42,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 23:29:42,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:42,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:42,220 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:29:42,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695014130] [2021-12-06 23:29:42,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695014130] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:42,221 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:42,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 23:29:42,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446955411] [2021-12-06 23:29:42,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:42,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 23:29:42,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:29:42,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 23:29:42,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:29:42,222 INFO L87 Difference]: Start difference. First operand 424 states and 559 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:42,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:42,408 INFO L93 Difference]: Finished difference Result 463 states and 605 transitions. [2021-12-06 23:29:42,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 23:29:42,409 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2021-12-06 23:29:42,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:42,412 INFO L225 Difference]: With dead ends: 463 [2021-12-06 23:29:42,412 INFO L226 Difference]: Without dead ends: 463 [2021-12-06 23:29:42,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-12-06 23:29:42,413 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 392 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 941 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:42,413 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [400 Valid, 941 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:29:42,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2021-12-06 23:29:42,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 424. [2021-12-06 23:29:42,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 372 states have (on average 1.2983870967741935) internal successors, (483), 380 states have internal predecessors, (483), 35 states have call successors, (35), 16 states have call predecessors, (35), 16 states have return successors, (39), 28 states have call predecessors, (39), 28 states have call successors, (39) [2021-12-06 23:29:42,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 557 transitions. [2021-12-06 23:29:42,427 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 557 transitions. Word has length 40 [2021-12-06 23:29:42,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:42,427 INFO L470 AbstractCegarLoop]: Abstraction has 424 states and 557 transitions. [2021-12-06 23:29:42,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:42,428 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 557 transitions. [2021-12-06 23:29:42,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-12-06 23:29:42,429 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:42,429 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:42,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-06 23:29:42,429 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:42,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:42,430 INFO L85 PathProgramCache]: Analyzing trace with hash -746395849, now seen corresponding path program 1 times [2021-12-06 23:29:42,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:29:42,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592186414] [2021-12-06 23:29:42,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:42,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:29:42,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:42,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 23:29:42,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:42,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:42,482 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:29:42,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592186414] [2021-12-06 23:29:42,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592186414] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:42,483 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:42,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:29:42,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225537652] [2021-12-06 23:29:42,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:42,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:29:42,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:29:42,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:29:42,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:29:42,485 INFO L87 Difference]: Start difference. First operand 424 states and 557 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:42,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:42,589 INFO L93 Difference]: Finished difference Result 453 states and 589 transitions. [2021-12-06 23:29:42,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 23:29:42,589 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41 [2021-12-06 23:29:42,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:42,591 INFO L225 Difference]: With dead ends: 453 [2021-12-06 23:29:42,591 INFO L226 Difference]: Without dead ends: 434 [2021-12-06 23:29:42,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-06 23:29:42,592 INFO L933 BasicCegarLoop]: 290 mSDtfsCounter, 80 mSDsluCounter, 1041 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 1331 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:42,592 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 1331 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:29:42,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2021-12-06 23:29:42,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 420. [2021-12-06 23:29:42,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 370 states have (on average 1.2972972972972974) internal successors, (480), 377 states have internal predecessors, (480), 34 states have call successors, (34), 15 states have call predecessors, (34), 15 states have return successors, (38), 28 states have call predecessors, (38), 27 states have call successors, (38) [2021-12-06 23:29:42,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 552 transitions. [2021-12-06 23:29:42,602 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 552 transitions. Word has length 41 [2021-12-06 23:29:42,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:42,603 INFO L470 AbstractCegarLoop]: Abstraction has 420 states and 552 transitions. [2021-12-06 23:29:42,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:42,603 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 552 transitions. [2021-12-06 23:29:42,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-12-06 23:29:42,604 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:42,604 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:42,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-06 23:29:42,604 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:42,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:42,605 INFO L85 PathProgramCache]: Analyzing trace with hash 931091859, now seen corresponding path program 1 times [2021-12-06 23:29:42,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:29:42,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576950113] [2021-12-06 23:29:42,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:42,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:29:42,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:42,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 23:29:42,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:42,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:42,659 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:29:42,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576950113] [2021-12-06 23:29:42,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576950113] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:42,659 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:42,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:29:42,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403699973] [2021-12-06 23:29:42,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:42,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:29:42,660 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:29:42,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:29:42,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:29:42,660 INFO L87 Difference]: Start difference. First operand 420 states and 552 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:42,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:42,839 INFO L93 Difference]: Finished difference Result 432 states and 565 transitions. [2021-12-06 23:29:42,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 23:29:42,840 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2021-12-06 23:29:42,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:42,842 INFO L225 Difference]: With dead ends: 432 [2021-12-06 23:29:42,843 INFO L226 Difference]: Without dead ends: 432 [2021-12-06 23:29:42,843 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:29:42,844 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 321 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 915 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:42,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [323 Valid, 915 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:29:42,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2021-12-06 23:29:42,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 420. [2021-12-06 23:29:42,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 370 states have (on average 1.2945945945945947) internal successors, (479), 377 states have internal predecessors, (479), 34 states have call successors, (34), 15 states have call predecessors, (34), 15 states have return successors, (38), 28 states have call predecessors, (38), 27 states have call successors, (38) [2021-12-06 23:29:42,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 551 transitions. [2021-12-06 23:29:42,855 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 551 transitions. Word has length 43 [2021-12-06 23:29:42,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:42,856 INFO L470 AbstractCegarLoop]: Abstraction has 420 states and 551 transitions. [2021-12-06 23:29:42,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:42,856 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 551 transitions. [2021-12-06 23:29:42,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-12-06 23:29:42,857 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:42,857 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:42,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-06 23:29:42,858 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:42,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:42,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1663005190, now seen corresponding path program 1 times [2021-12-06 23:29:42,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:29:42,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680997932] [2021-12-06 23:29:42,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:42,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:29:42,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:42,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 23:29:42,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:42,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:42,908 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:29:42,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680997932] [2021-12-06 23:29:42,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680997932] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:42,908 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:42,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:29:42,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057921903] [2021-12-06 23:29:42,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:42,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:29:42,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:29:42,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:29:42,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:29:42,910 INFO L87 Difference]: Start difference. First operand 420 states and 551 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:43,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:43,076 INFO L93 Difference]: Finished difference Result 439 states and 575 transitions. [2021-12-06 23:29:43,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 23:29:43,077 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2021-12-06 23:29:43,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:43,079 INFO L225 Difference]: With dead ends: 439 [2021-12-06 23:29:43,080 INFO L226 Difference]: Without dead ends: 439 [2021-12-06 23:29:43,080 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-12-06 23:29:43,081 INFO L933 BasicCegarLoop]: 279 mSDtfsCounter, 340 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 929 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:43,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [345 Valid, 929 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:29:43,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2021-12-06 23:29:43,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 412. [2021-12-06 23:29:43,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 363 states have (on average 1.2865013774104683) internal successors, (467), 370 states have internal predecessors, (467), 34 states have call successors, (34), 15 states have call predecessors, (34), 14 states have return successors, (37), 27 states have call predecessors, (37), 27 states have call successors, (37) [2021-12-06 23:29:43,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 538 transitions. [2021-12-06 23:29:43,093 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 538 transitions. Word has length 42 [2021-12-06 23:29:43,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:43,093 INFO L470 AbstractCegarLoop]: Abstraction has 412 states and 538 transitions. [2021-12-06 23:29:43,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:43,094 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 538 transitions. [2021-12-06 23:29:43,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-12-06 23:29:43,095 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:43,095 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:43,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-06 23:29:43,095 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:43,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:43,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1049211654, now seen corresponding path program 1 times [2021-12-06 23:29:43,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:29:43,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204219719] [2021-12-06 23:29:43,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:43,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:29:43,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:43,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 23:29:43,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:43,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:43,126 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:29:43,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204219719] [2021-12-06 23:29:43,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204219719] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:43,126 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:43,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 23:29:43,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178015773] [2021-12-06 23:29:43,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:43,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 23:29:43,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:29:43,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 23:29:43,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 23:29:43,127 INFO L87 Difference]: Start difference. First operand 412 states and 538 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:43,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:43,209 INFO L93 Difference]: Finished difference Result 424 states and 544 transitions. [2021-12-06 23:29:43,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 23:29:43,209 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2021-12-06 23:29:43,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:43,211 INFO L225 Difference]: With dead ends: 424 [2021-12-06 23:29:43,211 INFO L226 Difference]: Without dead ends: 424 [2021-12-06 23:29:43,212 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:29:43,212 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 83 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:43,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 733 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:29:43,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2021-12-06 23:29:43,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 406. [2021-12-06 23:29:43,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 358 states have (on average 1.270949720670391) internal successors, (455), 364 states have internal predecessors, (455), 33 states have call successors, (33), 15 states have call predecessors, (33), 14 states have return successors, (37), 27 states have call predecessors, (37), 27 states have call successors, (37) [2021-12-06 23:29:43,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 525 transitions. [2021-12-06 23:29:43,220 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 525 transitions. Word has length 42 [2021-12-06 23:29:43,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:43,221 INFO L470 AbstractCegarLoop]: Abstraction has 406 states and 525 transitions. [2021-12-06 23:29:43,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:43,221 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 525 transitions. [2021-12-06 23:29:43,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-12-06 23:29:43,222 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:43,222 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:43,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-06 23:29:43,222 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:43,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:43,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1381038349, now seen corresponding path program 1 times [2021-12-06 23:29:43,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:29:43,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640030286] [2021-12-06 23:29:43,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:43,223 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:29:43,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:43,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 23:29:43,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:43,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:43,271 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:29:43,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640030286] [2021-12-06 23:29:43,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640030286] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:43,272 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:43,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 23:29:43,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354097306] [2021-12-06 23:29:43,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:43,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 23:29:43,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:29:43,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 23:29:43,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 23:29:43,273 INFO L87 Difference]: Start difference. First operand 406 states and 525 transitions. Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:43,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:43,398 INFO L93 Difference]: Finished difference Result 448 states and 577 transitions. [2021-12-06 23:29:43,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 23:29:43,399 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2021-12-06 23:29:43,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:43,401 INFO L225 Difference]: With dead ends: 448 [2021-12-06 23:29:43,401 INFO L226 Difference]: Without dead ends: 447 [2021-12-06 23:29:43,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-12-06 23:29:43,402 INFO L933 BasicCegarLoop]: 288 mSDtfsCounter, 228 mSDsluCounter, 1346 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 1634 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:43,403 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [255 Valid, 1634 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:29:43,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2021-12-06 23:29:43,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 421. [2021-12-06 23:29:43,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 372 states have (on average 1.260752688172043) internal successors, (469), 378 states have internal predecessors, (469), 33 states have call successors, (33), 15 states have call predecessors, (33), 15 states have return successors, (43), 28 states have call predecessors, (43), 27 states have call successors, (43) [2021-12-06 23:29:43,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 545 transitions. [2021-12-06 23:29:43,415 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 545 transitions. Word has length 43 [2021-12-06 23:29:43,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:43,416 INFO L470 AbstractCegarLoop]: Abstraction has 421 states and 545 transitions. [2021-12-06 23:29:43,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:43,416 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 545 transitions. [2021-12-06 23:29:43,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-12-06 23:29:43,417 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:43,417 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:43,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-06 23:29:43,418 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:43,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:43,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1380761519, now seen corresponding path program 1 times [2021-12-06 23:29:43,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:29:43,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528331188] [2021-12-06 23:29:43,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:43,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:29:43,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:43,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 23:29:43,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:43,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:43,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:29:43,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528331188] [2021-12-06 23:29:43,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528331188] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:43,468 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:43,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 23:29:43,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662825843] [2021-12-06 23:29:43,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:43,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 23:29:43,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:29:43,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 23:29:43,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 23:29:43,469 INFO L87 Difference]: Start difference. First operand 421 states and 545 transitions. Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:43,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:43,610 INFO L93 Difference]: Finished difference Result 444 states and 570 transitions. [2021-12-06 23:29:43,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 23:29:43,610 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2021-12-06 23:29:43,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:43,612 INFO L225 Difference]: With dead ends: 444 [2021-12-06 23:29:43,612 INFO L226 Difference]: Without dead ends: 434 [2021-12-06 23:29:43,612 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:29:43,613 INFO L933 BasicCegarLoop]: 290 mSDtfsCounter, 49 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 1712 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:43,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 1712 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:29:43,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2021-12-06 23:29:43,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 418. [2021-12-06 23:29:43,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 369 states have (on average 1.2628726287262872) internal successors, (466), 376 states have internal predecessors, (466), 33 states have call successors, (33), 15 states have call predecessors, (33), 15 states have return successors, (42), 27 states have call predecessors, (42), 27 states have call successors, (42) [2021-12-06 23:29:43,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 541 transitions. [2021-12-06 23:29:43,621 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 541 transitions. Word has length 43 [2021-12-06 23:29:43,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:43,621 INFO L470 AbstractCegarLoop]: Abstraction has 418 states and 541 transitions. [2021-12-06 23:29:43,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:43,621 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 541 transitions. [2021-12-06 23:29:43,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-12-06 23:29:43,622 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:43,622 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:43,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-06 23:29:43,623 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:43,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:43,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1017261290, now seen corresponding path program 1 times [2021-12-06 23:29:43,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:29:43,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443868142] [2021-12-06 23:29:43,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:43,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:29:43,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:43,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 23:29:43,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:43,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:43,645 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:29:43,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443868142] [2021-12-06 23:29:43,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443868142] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:43,645 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:43,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 23:29:43,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613713797] [2021-12-06 23:29:43,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:43,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 23:29:43,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:29:43,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 23:29:43,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 23:29:43,646 INFO L87 Difference]: Start difference. First operand 418 states and 541 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:43,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:43,705 INFO L93 Difference]: Finished difference Result 432 states and 551 transitions. [2021-12-06 23:29:43,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 23:29:43,705 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2021-12-06 23:29:43,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:43,708 INFO L225 Difference]: With dead ends: 432 [2021-12-06 23:29:43,708 INFO L226 Difference]: Without dead ends: 432 [2021-12-06 23:29:43,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:29:43,709 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 95 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:43,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 824 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:29:43,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2021-12-06 23:29:43,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 417. [2021-12-06 23:29:43,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 368 states have (on average 1.25) internal successors, (460), 375 states have internal predecessors, (460), 33 states have call successors, (33), 15 states have call predecessors, (33), 15 states have return successors, (42), 27 states have call predecessors, (42), 27 states have call successors, (42) [2021-12-06 23:29:43,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 535 transitions. [2021-12-06 23:29:43,717 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 535 transitions. Word has length 43 [2021-12-06 23:29:43,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:43,717 INFO L470 AbstractCegarLoop]: Abstraction has 417 states and 535 transitions. [2021-12-06 23:29:43,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:43,718 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 535 transitions. [2021-12-06 23:29:43,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-12-06 23:29:43,718 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:43,719 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:43,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-06 23:29:43,719 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:43,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:43,719 INFO L85 PathProgramCache]: Analyzing trace with hash 2052650382, now seen corresponding path program 1 times [2021-12-06 23:29:43,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:29:43,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567387076] [2021-12-06 23:29:43,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:43,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:29:43,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:43,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 23:29:43,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:43,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:43,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:29:43,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567387076] [2021-12-06 23:29:43,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567387076] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:43,762 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:43,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:29:43,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964911240] [2021-12-06 23:29:43,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:43,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:29:43,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:29:43,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:29:43,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:29:43,763 INFO L87 Difference]: Start difference. First operand 417 states and 535 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:43,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:43,912 INFO L93 Difference]: Finished difference Result 436 states and 553 transitions. [2021-12-06 23:29:43,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 23:29:43,913 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2021-12-06 23:29:43,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:43,915 INFO L225 Difference]: With dead ends: 436 [2021-12-06 23:29:43,915 INFO L226 Difference]: Without dead ends: 424 [2021-12-06 23:29:43,915 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:29:43,916 INFO L933 BasicCegarLoop]: 301 mSDtfsCounter, 389 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:43,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [396 Valid, 878 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:29:43,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2021-12-06 23:29:43,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 401. [2021-12-06 23:29:43,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 354 states have (on average 1.2542372881355932) internal successors, (444), 360 states have internal predecessors, (444), 32 states have call successors, (32), 15 states have call predecessors, (32), 14 states have return successors, (36), 26 states have call predecessors, (36), 26 states have call successors, (36) [2021-12-06 23:29:43,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 512 transitions. [2021-12-06 23:29:43,924 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 512 transitions. Word has length 44 [2021-12-06 23:29:43,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:43,924 INFO L470 AbstractCegarLoop]: Abstraction has 401 states and 512 transitions. [2021-12-06 23:29:43,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:43,924 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 512 transitions. [2021-12-06 23:29:43,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-12-06 23:29:43,925 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:43,925 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:43,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-06 23:29:43,925 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:43,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:43,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1187697777, now seen corresponding path program 1 times [2021-12-06 23:29:43,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:29:43,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566135275] [2021-12-06 23:29:43,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:43,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:29:43,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:43,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 23:29:43,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:43,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:43,972 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:29:43,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566135275] [2021-12-06 23:29:43,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566135275] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:43,972 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:43,972 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 23:29:43,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538800456] [2021-12-06 23:29:43,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:43,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 23:29:43,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:29:43,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 23:29:43,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 23:29:43,973 INFO L87 Difference]: Start difference. First operand 401 states and 512 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:44,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:44,066 INFO L93 Difference]: Finished difference Result 492 states and 623 transitions. [2021-12-06 23:29:44,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 23:29:44,067 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 46 [2021-12-06 23:29:44,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:44,069 INFO L225 Difference]: With dead ends: 492 [2021-12-06 23:29:44,069 INFO L226 Difference]: Without dead ends: 492 [2021-12-06 23:29:44,069 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:29:44,070 INFO L933 BasicCegarLoop]: 330 mSDtfsCounter, 159 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:44,070 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 768 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:29:44,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2021-12-06 23:29:44,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 454. [2021-12-06 23:29:44,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 402 states have (on average 1.256218905472637) internal successors, (505), 407 states have internal predecessors, (505), 34 states have call successors, (34), 17 states have call predecessors, (34), 17 states have return successors, (42), 30 states have call predecessors, (42), 29 states have call successors, (42) [2021-12-06 23:29:44,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 581 transitions. [2021-12-06 23:29:44,078 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 581 transitions. Word has length 46 [2021-12-06 23:29:44,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:44,078 INFO L470 AbstractCegarLoop]: Abstraction has 454 states and 581 transitions. [2021-12-06 23:29:44,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:44,078 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 581 transitions. [2021-12-06 23:29:44,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-06 23:29:44,079 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:44,079 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:44,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-06 23:29:44,079 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:44,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:44,080 INFO L85 PathProgramCache]: Analyzing trace with hash 349644568, now seen corresponding path program 1 times [2021-12-06 23:29:44,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:29:44,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555753284] [2021-12-06 23:29:44,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:44,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:29:44,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:44,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 23:29:44,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:44,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:44,112 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:29:44,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555753284] [2021-12-06 23:29:44,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555753284] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:44,112 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:44,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 23:29:44,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487957838] [2021-12-06 23:29:44,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:44,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 23:29:44,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:29:44,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 23:29:44,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:29:44,114 INFO L87 Difference]: Start difference. First operand 454 states and 581 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:44,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:44,179 INFO L93 Difference]: Finished difference Result 461 states and 589 transitions. [2021-12-06 23:29:44,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 23:29:44,180 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2021-12-06 23:29:44,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:44,181 INFO L225 Difference]: With dead ends: 461 [2021-12-06 23:29:44,181 INFO L226 Difference]: Without dead ends: 461 [2021-12-06 23:29:44,182 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:29:44,182 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 95 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:44,182 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 1062 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:29:44,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2021-12-06 23:29:44,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 436. [2021-12-06 23:29:44,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 386 states have (on average 1.261658031088083) internal successors, (487), 391 states have internal predecessors, (487), 33 states have call successors, (33), 16 states have call predecessors, (33), 16 states have return successors, (41), 29 states have call predecessors, (41), 28 states have call successors, (41) [2021-12-06 23:29:44,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 561 transitions. [2021-12-06 23:29:44,189 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 561 transitions. Word has length 45 [2021-12-06 23:29:44,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:44,190 INFO L470 AbstractCegarLoop]: Abstraction has 436 states and 561 transitions. [2021-12-06 23:29:44,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:44,190 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 561 transitions. [2021-12-06 23:29:44,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-12-06 23:29:44,191 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:44,191 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:44,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-06 23:29:44,191 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:44,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:44,191 INFO L85 PathProgramCache]: Analyzing trace with hash -448653222, now seen corresponding path program 1 times [2021-12-06 23:29:44,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:29:44,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60234068] [2021-12-06 23:29:44,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:44,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:29:44,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:44,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 23:29:44,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:44,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:44,247 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:29:44,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60234068] [2021-12-06 23:29:44,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60234068] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:44,248 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:44,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 23:29:44,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638868787] [2021-12-06 23:29:44,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:44,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 23:29:44,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:29:44,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 23:29:44,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:29:44,249 INFO L87 Difference]: Start difference. First operand 436 states and 561 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:44,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:44,356 INFO L93 Difference]: Finished difference Result 477 states and 608 transitions. [2021-12-06 23:29:44,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 23:29:44,356 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2021-12-06 23:29:44,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:44,358 INFO L225 Difference]: With dead ends: 477 [2021-12-06 23:29:44,358 INFO L226 Difference]: Without dead ends: 477 [2021-12-06 23:29:44,358 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 23:29:44,359 INFO L933 BasicCegarLoop]: 309 mSDtfsCounter, 52 mSDsluCounter, 1353 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 1662 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:44,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 1662 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:29:44,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2021-12-06 23:29:44,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 436. [2021-12-06 23:29:44,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 386 states have (on average 1.2564766839378239) internal successors, (485), 391 states have internal predecessors, (485), 33 states have call successors, (33), 16 states have call predecessors, (33), 16 states have return successors, (41), 29 states have call predecessors, (41), 28 states have call successors, (41) [2021-12-06 23:29:44,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 559 transitions. [2021-12-06 23:29:44,366 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 559 transitions. Word has length 48 [2021-12-06 23:29:44,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:44,366 INFO L470 AbstractCegarLoop]: Abstraction has 436 states and 559 transitions. [2021-12-06 23:29:44,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:44,366 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 559 transitions. [2021-12-06 23:29:44,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-12-06 23:29:44,367 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:44,367 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:44,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-06 23:29:44,367 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:44,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:44,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1621808983, now seen corresponding path program 1 times [2021-12-06 23:29:44,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:29:44,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132314142] [2021-12-06 23:29:44,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:44,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:29:44,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:44,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 23:29:44,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:44,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:44,416 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:29:44,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132314142] [2021-12-06 23:29:44,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132314142] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:44,416 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:44,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 23:29:44,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346687068] [2021-12-06 23:29:44,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:44,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 23:29:44,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:29:44,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 23:29:44,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 23:29:44,417 INFO L87 Difference]: Start difference. First operand 436 states and 559 transitions. Second operand has 9 states, 9 states have (on average 5.0) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:44,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:44,558 INFO L93 Difference]: Finished difference Result 460 states and 585 transitions. [2021-12-06 23:29:44,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 23:29:44,558 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2021-12-06 23:29:44,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:44,560 INFO L225 Difference]: With dead ends: 460 [2021-12-06 23:29:44,560 INFO L226 Difference]: Without dead ends: 444 [2021-12-06 23:29:44,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-12-06 23:29:44,561 INFO L933 BasicCegarLoop]: 275 mSDtfsCounter, 53 mSDsluCounter, 1591 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 1866 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:44,561 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 1866 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:29:44,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2021-12-06 23:29:44,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 432. [2021-12-06 23:29:44,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 383 states have (on average 1.2558746736292428) internal successors, (481), 388 states have internal predecessors, (481), 32 states have call successors, (32), 16 states have call predecessors, (32), 16 states have return successors, (40), 28 states have call predecessors, (40), 27 states have call successors, (40) [2021-12-06 23:29:44,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 553 transitions. [2021-12-06 23:29:44,570 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 553 transitions. Word has length 48 [2021-12-06 23:29:44,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:44,570 INFO L470 AbstractCegarLoop]: Abstraction has 432 states and 553 transitions. [2021-12-06 23:29:44,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:44,570 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 553 transitions. [2021-12-06 23:29:44,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-12-06 23:29:44,572 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:44,572 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:44,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-12-06 23:29:44,572 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:44,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:44,573 INFO L85 PathProgramCache]: Analyzing trace with hash 2037628605, now seen corresponding path program 1 times [2021-12-06 23:29:44,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:29:44,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680026279] [2021-12-06 23:29:44,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:44,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:29:44,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:44,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 23:29:44,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:44,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:44,624 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:29:44,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680026279] [2021-12-06 23:29:44,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680026279] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:44,625 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:44,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 23:29:44,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474517010] [2021-12-06 23:29:44,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:44,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 23:29:44,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:29:44,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 23:29:44,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 23:29:44,626 INFO L87 Difference]: Start difference. First operand 432 states and 553 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:44,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:44,775 INFO L93 Difference]: Finished difference Result 456 states and 579 transitions. [2021-12-06 23:29:44,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 23:29:44,775 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2021-12-06 23:29:44,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:44,777 INFO L225 Difference]: With dead ends: 456 [2021-12-06 23:29:44,777 INFO L226 Difference]: Without dead ends: 439 [2021-12-06 23:29:44,777 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-12-06 23:29:44,777 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 53 mSDsluCounter, 1559 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 1828 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:44,778 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 1828 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:29:44,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2021-12-06 23:29:44,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 427. [2021-12-06 23:29:44,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 379 states have (on average 1.2559366754617414) internal successors, (476), 384 states have internal predecessors, (476), 31 states have call successors, (31), 16 states have call predecessors, (31), 16 states have return successors, (39), 27 states have call predecessors, (39), 26 states have call successors, (39) [2021-12-06 23:29:44,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 546 transitions. [2021-12-06 23:29:44,784 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 546 transitions. Word has length 49 [2021-12-06 23:29:44,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:44,784 INFO L470 AbstractCegarLoop]: Abstraction has 427 states and 546 transitions. [2021-12-06 23:29:44,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:44,784 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 546 transitions. [2021-12-06 23:29:44,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-12-06 23:29:44,785 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:44,785 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:44,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-12-06 23:29:44,786 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:44,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:44,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1318636408, now seen corresponding path program 1 times [2021-12-06 23:29:44,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:29:44,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250831816] [2021-12-06 23:29:44,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:44,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:29:44,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:44,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 23:29:44,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:44,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:44,830 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:29:44,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250831816] [2021-12-06 23:29:44,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250831816] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:44,830 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:44,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 23:29:44,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54429933] [2021-12-06 23:29:44,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:44,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 23:29:44,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:29:44,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 23:29:44,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 23:29:44,831 INFO L87 Difference]: Start difference. First operand 427 states and 546 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:44,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:44,973 INFO L93 Difference]: Finished difference Result 451 states and 572 transitions. [2021-12-06 23:29:44,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 23:29:44,974 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2021-12-06 23:29:44,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:44,976 INFO L225 Difference]: With dead ends: 451 [2021-12-06 23:29:44,976 INFO L226 Difference]: Without dead ends: 435 [2021-12-06 23:29:44,976 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-12-06 23:29:44,977 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 53 mSDsluCounter, 1520 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 1782 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:44,977 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 1782 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:29:44,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2021-12-06 23:29:44,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 423. [2021-12-06 23:29:44,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 376 states have (on average 1.2553191489361701) internal successors, (472), 381 states have internal predecessors, (472), 30 states have call successors, (30), 16 states have call predecessors, (30), 16 states have return successors, (38), 26 states have call predecessors, (38), 25 states have call successors, (38) [2021-12-06 23:29:44,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 540 transitions. [2021-12-06 23:29:44,983 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 540 transitions. Word has length 49 [2021-12-06 23:29:44,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:44,984 INFO L470 AbstractCegarLoop]: Abstraction has 423 states and 540 transitions. [2021-12-06 23:29:44,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:44,984 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 540 transitions. [2021-12-06 23:29:44,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-12-06 23:29:44,984 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:44,985 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:44,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-12-06 23:29:44,985 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:44,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:44,985 INFO L85 PathProgramCache]: Analyzing trace with hash 2007550124, now seen corresponding path program 1 times [2021-12-06 23:29:44,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:29:44,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140482478] [2021-12-06 23:29:44,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:44,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:29:45,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:45,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 23:29:45,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:45,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:45,050 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:29:45,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140482478] [2021-12-06 23:29:45,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140482478] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:45,051 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:45,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 23:29:45,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970658981] [2021-12-06 23:29:45,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:45,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 23:29:45,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:29:45,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 23:29:45,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:29:45,052 INFO L87 Difference]: Start difference. First operand 423 states and 540 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:45,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:45,161 INFO L93 Difference]: Finished difference Result 567 states and 740 transitions. [2021-12-06 23:29:45,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 23:29:45,162 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2021-12-06 23:29:45,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:45,164 INFO L225 Difference]: With dead ends: 567 [2021-12-06 23:29:45,164 INFO L226 Difference]: Without dead ends: 567 [2021-12-06 23:29:45,164 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 23:29:45,165 INFO L933 BasicCegarLoop]: 351 mSDtfsCounter, 104 mSDsluCounter, 1499 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 1850 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:45,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 1850 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:29:45,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2021-12-06 23:29:45,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 423. [2021-12-06 23:29:45,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 376 states have (on average 1.252659574468085) internal successors, (471), 381 states have internal predecessors, (471), 30 states have call successors, (30), 16 states have call predecessors, (30), 16 states have return successors, (38), 26 states have call predecessors, (38), 25 states have call successors, (38) [2021-12-06 23:29:45,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 539 transitions. [2021-12-06 23:29:45,173 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 539 transitions. Word has length 51 [2021-12-06 23:29:45,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:45,174 INFO L470 AbstractCegarLoop]: Abstraction has 423 states and 539 transitions. [2021-12-06 23:29:45,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:45,174 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 539 transitions. [2021-12-06 23:29:45,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-12-06 23:29:45,175 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:45,175 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:45,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-12-06 23:29:45,176 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:45,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:45,176 INFO L85 PathProgramCache]: Analyzing trace with hash 568629575, now seen corresponding path program 1 times [2021-12-06 23:29:45,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:29:45,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197759995] [2021-12-06 23:29:45,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:45,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:29:45,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:45,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 23:29:45,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:45,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:45,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:29:45,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197759995] [2021-12-06 23:29:45,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197759995] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:45,224 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:45,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 23:29:45,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63340650] [2021-12-06 23:29:45,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:45,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 23:29:45,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:29:45,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 23:29:45,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-06 23:29:45,225 INFO L87 Difference]: Start difference. First operand 423 states and 539 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:45,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:45,378 INFO L93 Difference]: Finished difference Result 447 states and 565 transitions. [2021-12-06 23:29:45,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 23:29:45,379 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2021-12-06 23:29:45,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:45,380 INFO L225 Difference]: With dead ends: 447 [2021-12-06 23:29:45,380 INFO L226 Difference]: Without dead ends: 413 [2021-12-06 23:29:45,380 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-12-06 23:29:45,381 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 61 mSDsluCounter, 1522 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 1786 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:45,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 1786 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:29:45,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2021-12-06 23:29:45,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 401. [2021-12-06 23:29:45,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 357 states have (on average 1.2521008403361344) internal successors, (447), 362 states have internal predecessors, (447), 28 states have call successors, (28), 15 states have call predecessors, (28), 15 states have return successors, (36), 24 states have call predecessors, (36), 23 states have call successors, (36) [2021-12-06 23:29:45,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 511 transitions. [2021-12-06 23:29:45,387 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 511 transitions. Word has length 53 [2021-12-06 23:29:45,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:45,387 INFO L470 AbstractCegarLoop]: Abstraction has 401 states and 511 transitions. [2021-12-06 23:29:45,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:45,387 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 511 transitions. [2021-12-06 23:29:45,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-12-06 23:29:45,388 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:45,388 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:45,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-12-06 23:29:45,388 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:45,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:45,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1451850282, now seen corresponding path program 1 times [2021-12-06 23:29:45,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:29:45,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793186475] [2021-12-06 23:29:45,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:45,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:29:45,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:45,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 23:29:45,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:45,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-06 23:29:45,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:45,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:45,450 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:29:45,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793186475] [2021-12-06 23:29:45,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793186475] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:45,451 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:45,451 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 23:29:45,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072134596] [2021-12-06 23:29:45,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:45,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 23:29:45,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:29:45,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 23:29:45,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:29:45,452 INFO L87 Difference]: Start difference. First operand 401 states and 511 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 23:29:45,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:45,574 INFO L93 Difference]: Finished difference Result 388 states and 485 transitions. [2021-12-06 23:29:45,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 23:29:45,574 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 59 [2021-12-06 23:29:45,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:45,576 INFO L225 Difference]: With dead ends: 388 [2021-12-06 23:29:45,577 INFO L226 Difference]: Without dead ends: 388 [2021-12-06 23:29:45,577 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:29:45,577 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 132 mSDsluCounter, 876 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 1189 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:45,578 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 1189 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:29:45,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2021-12-06 23:29:45,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 368. [2021-12-06 23:29:45,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 329 states have (on average 1.2522796352583587) internal successors, (412), 333 states have internal predecessors, (412), 25 states have call successors, (25), 14 states have call predecessors, (25), 13 states have return successors, (24), 21 states have call predecessors, (24), 21 states have call successors, (24) [2021-12-06 23:29:45,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 461 transitions. [2021-12-06 23:29:45,585 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 461 transitions. Word has length 59 [2021-12-06 23:29:45,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:45,585 INFO L470 AbstractCegarLoop]: Abstraction has 368 states and 461 transitions. [2021-12-06 23:29:45,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 23:29:45,585 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 461 transitions. [2021-12-06 23:29:45,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-12-06 23:29:45,587 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:45,587 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:45,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-12-06 23:29:45,587 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:45,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:45,588 INFO L85 PathProgramCache]: Analyzing trace with hash 2062141299, now seen corresponding path program 1 times [2021-12-06 23:29:45,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:29:45,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699553320] [2021-12-06 23:29:45,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:45,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:29:45,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:45,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 23:29:45,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:45,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 23:29:45,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:45,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:45,645 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:29:45,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699553320] [2021-12-06 23:29:45,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699553320] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:45,645 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:45,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 23:29:45,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520565228] [2021-12-06 23:29:45,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:45,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 23:29:45,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:29:45,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 23:29:45,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 23:29:45,646 INFO L87 Difference]: Start difference. First operand 368 states and 461 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 23:29:45,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:45,888 INFO L93 Difference]: Finished difference Result 493 states and 599 transitions. [2021-12-06 23:29:45,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 23:29:45,889 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 61 [2021-12-06 23:29:45,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:45,892 INFO L225 Difference]: With dead ends: 493 [2021-12-06 23:29:45,892 INFO L226 Difference]: Without dead ends: 493 [2021-12-06 23:29:45,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2021-12-06 23:29:45,893 INFO L933 BasicCegarLoop]: 294 mSDtfsCounter, 393 mSDsluCounter, 910 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 1204 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:45,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [399 Valid, 1204 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 23:29:45,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2021-12-06 23:29:45,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 462. [2021-12-06 23:29:45,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 413 states have (on average 1.2397094430992737) internal successors, (512), 419 states have internal predecessors, (512), 27 states have call successors, (27), 20 states have call predecessors, (27), 21 states have return successors, (27), 23 states have call predecessors, (27), 23 states have call successors, (27) [2021-12-06 23:29:45,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 566 transitions. [2021-12-06 23:29:45,903 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 566 transitions. Word has length 61 [2021-12-06 23:29:45,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:45,903 INFO L470 AbstractCegarLoop]: Abstraction has 462 states and 566 transitions. [2021-12-06 23:29:45,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 23:29:45,903 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 566 transitions. [2021-12-06 23:29:45,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-12-06 23:29:45,904 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:45,904 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:45,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-12-06 23:29:45,905 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:45,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:45,905 INFO L85 PathProgramCache]: Analyzing trace with hash 481973530, now seen corresponding path program 1 times [2021-12-06 23:29:45,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:29:45,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763201780] [2021-12-06 23:29:45,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:45,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:29:45,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:45,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 23:29:45,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:45,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-06 23:29:45,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:45,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:45,977 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:29:45,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763201780] [2021-12-06 23:29:45,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763201780] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:45,978 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:45,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 23:29:45,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063449924] [2021-12-06 23:29:45,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:45,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 23:29:45,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:29:45,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 23:29:45,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:29:45,979 INFO L87 Difference]: Start difference. First operand 462 states and 566 transitions. Second operand has 10 states, 10 states have (on average 5.7) internal successors, (57), 7 states have internal predecessors, (57), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 23:29:46,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:46,162 INFO L93 Difference]: Finished difference Result 461 states and 564 transitions. [2021-12-06 23:29:46,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 23:29:46,163 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 7 states have internal predecessors, (57), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 62 [2021-12-06 23:29:46,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:46,164 INFO L225 Difference]: With dead ends: 461 [2021-12-06 23:29:46,164 INFO L226 Difference]: Without dead ends: 413 [2021-12-06 23:29:46,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-12-06 23:29:46,165 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 103 mSDsluCounter, 1386 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 1613 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:46,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 1613 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 23:29:46,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2021-12-06 23:29:46,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2021-12-06 23:29:46,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 369 states have (on average 1.2439024390243902) internal successors, (459), 374 states have internal predecessors, (459), 24 states have call successors, (24), 18 states have call predecessors, (24), 19 states have return successors, (25), 21 states have call predecessors, (25), 21 states have call successors, (25) [2021-12-06 23:29:46,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 508 transitions. [2021-12-06 23:29:46,171 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 508 transitions. Word has length 62 [2021-12-06 23:29:46,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:46,171 INFO L470 AbstractCegarLoop]: Abstraction has 413 states and 508 transitions. [2021-12-06 23:29:46,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 7 states have internal predecessors, (57), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 23:29:46,171 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 508 transitions. [2021-12-06 23:29:46,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-12-06 23:29:46,172 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:46,172 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:46,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-12-06 23:29:46,172 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:46,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:46,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1711382279, now seen corresponding path program 1 times [2021-12-06 23:29:46,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:29:46,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816375950] [2021-12-06 23:29:46,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:46,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:29:46,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:46,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 23:29:46,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:46,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-06 23:29:46,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:46,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:46,234 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:29:46,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816375950] [2021-12-06 23:29:46,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816375950] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:46,235 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:46,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 23:29:46,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026934132] [2021-12-06 23:29:46,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:46,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 23:29:46,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:29:46,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 23:29:46,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:29:46,236 INFO L87 Difference]: Start difference. First operand 413 states and 508 transitions. Second operand has 10 states, 10 states have (on average 5.8) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 23:29:46,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:46,391 INFO L93 Difference]: Finished difference Result 451 states and 550 transitions. [2021-12-06 23:29:46,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 23:29:46,392 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 63 [2021-12-06 23:29:46,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:46,393 INFO L225 Difference]: With dead ends: 451 [2021-12-06 23:29:46,393 INFO L226 Difference]: Without dead ends: 435 [2021-12-06 23:29:46,394 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2021-12-06 23:29:46,394 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 342 mSDsluCounter, 1170 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1406 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:46,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [347 Valid, 1406 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:29:46,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2021-12-06 23:29:46,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 421. [2021-12-06 23:29:46,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 376 states have (on average 1.2393617021276595) internal successors, (466), 381 states have internal predecessors, (466), 24 states have call successors, (24), 18 states have call predecessors, (24), 20 states have return successors, (27), 22 states have call predecessors, (27), 21 states have call successors, (27) [2021-12-06 23:29:46,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 517 transitions. [2021-12-06 23:29:46,400 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 517 transitions. Word has length 63 [2021-12-06 23:29:46,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:46,400 INFO L470 AbstractCegarLoop]: Abstraction has 421 states and 517 transitions. [2021-12-06 23:29:46,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 23:29:46,400 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 517 transitions. [2021-12-06 23:29:46,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-12-06 23:29:46,401 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:46,401 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:46,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-12-06 23:29:46,401 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:46,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:46,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1980841952, now seen corresponding path program 1 times [2021-12-06 23:29:46,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:29:46,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732539123] [2021-12-06 23:29:46,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:46,402 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:29:46,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:46,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 23:29:46,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:46,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-06 23:29:46,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:46,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:46,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:29:46,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732539123] [2021-12-06 23:29:46,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732539123] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:46,466 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:46,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 23:29:46,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031224149] [2021-12-06 23:29:46,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:46,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 23:29:46,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:29:46,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 23:29:46,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:29:46,467 INFO L87 Difference]: Start difference. First operand 421 states and 517 transitions. Second operand has 10 states, 10 states have (on average 5.9) internal successors, (59), 7 states have internal predecessors, (59), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 23:29:46,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:46,627 INFO L93 Difference]: Finished difference Result 451 states and 549 transitions. [2021-12-06 23:29:46,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 23:29:46,627 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 7 states have internal predecessors, (59), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 64 [2021-12-06 23:29:46,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:46,629 INFO L225 Difference]: With dead ends: 451 [2021-12-06 23:29:46,629 INFO L226 Difference]: Without dead ends: 435 [2021-12-06 23:29:46,630 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2021-12-06 23:29:46,630 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 62 mSDsluCounter, 1683 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 1933 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:46,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 1933 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:29:46,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2021-12-06 23:29:46,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 413. [2021-12-06 23:29:46,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 369 states have (on average 1.2411924119241193) internal successors, (458), 374 states have internal predecessors, (458), 24 states have call successors, (24), 18 states have call predecessors, (24), 19 states have return successors, (25), 21 states have call predecessors, (25), 21 states have call successors, (25) [2021-12-06 23:29:46,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 507 transitions. [2021-12-06 23:29:46,636 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 507 transitions. Word has length 64 [2021-12-06 23:29:46,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:46,636 INFO L470 AbstractCegarLoop]: Abstraction has 413 states and 507 transitions. [2021-12-06 23:29:46,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 7 states have internal predecessors, (59), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 23:29:46,636 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 507 transitions. [2021-12-06 23:29:46,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-12-06 23:29:46,637 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:46,637 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:46,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-12-06 23:29:46,637 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:46,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:46,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1972927547, now seen corresponding path program 1 times [2021-12-06 23:29:46,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:29:46,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431622299] [2021-12-06 23:29:46,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:46,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:29:46,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 23:29:46,649 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 23:29:46,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 23:29:46,690 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 23:29:46,690 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 23:29:46,691 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2021-12-06 23:29:46,692 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2021-12-06 23:29:46,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-12-06 23:29:46,695 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:46,697 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 23:29:46,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 11:29:46 BoogieIcfgContainer [2021-12-06 23:29:46,771 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 23:29:46,771 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 23:29:46,771 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 23:29:46,771 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 23:29:46,772 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:29:39" (3/4) ... [2021-12-06 23:29:46,774 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 23:29:46,774 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 23:29:46,774 INFO L158 Benchmark]: Toolchain (without parser) took 8243.21ms. Allocated memory was 92.3MB in the beginning and 136.3MB in the end (delta: 44.0MB). Free memory was 53.9MB in the beginning and 61.2MB in the end (delta: -7.3MB). Peak memory consumption was 36.4MB. Max. memory is 16.1GB. [2021-12-06 23:29:46,774 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 92.3MB. Free memory was 71.1MB in the beginning and 71.0MB in the end (delta: 77.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 23:29:46,775 INFO L158 Benchmark]: CACSL2BoogieTranslator took 299.95ms. Allocated memory is still 92.3MB. Free memory was 53.7MB in the beginning and 59.4MB in the end (delta: -5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-06 23:29:46,775 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.69ms. Allocated memory is still 92.3MB. Free memory was 59.4MB in the beginning and 54.5MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-06 23:29:46,775 INFO L158 Benchmark]: Boogie Preprocessor took 38.68ms. Allocated memory is still 92.3MB. Free memory was 54.5MB in the beginning and 51.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 23:29:46,775 INFO L158 Benchmark]: RCFGBuilder took 640.47ms. Allocated memory is still 92.3MB. Free memory was 51.1MB in the beginning and 42.5MB in the end (delta: 8.6MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. [2021-12-06 23:29:46,775 INFO L158 Benchmark]: TraceAbstraction took 7203.25ms. Allocated memory was 92.3MB in the beginning and 136.3MB in the end (delta: 44.0MB). Free memory was 42.2MB in the beginning and 62.3MB in the end (delta: -20.1MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. [2021-12-06 23:29:46,775 INFO L158 Benchmark]: Witness Printer took 2.75ms. Allocated memory is still 136.3MB. Free memory was 62.3MB in the beginning and 61.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 23:29:46,776 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 92.3MB. Free memory was 71.1MB in the beginning and 71.0MB in the end (delta: 77.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 299.95ms. Allocated memory is still 92.3MB. Free memory was 53.7MB in the beginning and 59.4MB in the end (delta: -5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.69ms. Allocated memory is still 92.3MB. Free memory was 59.4MB in the beginning and 54.5MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.68ms. Allocated memory is still 92.3MB. Free memory was 54.5MB in the beginning and 51.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 640.47ms. Allocated memory is still 92.3MB. Free memory was 51.1MB in the beginning and 42.5MB in the end (delta: 8.6MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. * TraceAbstraction took 7203.25ms. Allocated memory was 92.3MB in the beginning and 136.3MB in the end (delta: 44.0MB). Free memory was 42.2MB in the beginning and 62.3MB in the end (delta: -20.1MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. * Witness Printer took 2.75ms. Allocated memory is still 136.3MB. Free memory was 62.3MB in the beginning and 61.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 65. Possible FailurePath: [L36] int FloppyThread ; [L37] int KernelMode ; [L38] int Suspended ; [L39] int Executive ; [L40] int DiskController ; [L41] int FloppyDiskPeripheral ; [L42] int FlConfigCallBack ; [L43] int MaximumInterfaceType ; [L44] int MOUNTDEV_MOUNTED_DEVICE_GUID ; [L45] int myStatus ; [L46] int s ; [L47] int UNLOADED ; [L48] int NP ; [L49] int DC ; [L50] int SKIP1 ; [L51] int SKIP2 ; [L52] int MPR1 ; [L53] int MPR3 ; [L54] int IPC ; [L55] int pended ; [L56] int compRegistered ; [L57] int lowerDriverReturn ; [L58] int setEventCalled ; [L59] int customIrp ; [L91] int PagingReferenceCount = 0; [L92] int PagingMutex = 0; VAL [compRegistered=0, customIrp=0, DC=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=0, MPR3=0, myStatus=0, NP=0, PagingMutex=0, PagingReferenceCount=0, pended=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, Suspended=0, UNLOADED=0] [L671] int status ; [L672] int irp = __VERIFIER_nondet_int() ; [L673] int pirp ; [L674] int pirp__IoStatus__Status ; [L675] int irp_choice = __VERIFIER_nondet_int() ; [L676] int devobj = __VERIFIER_nondet_int() ; [L677] int __cil_tmp8 ; [L679] FloppyThread = 0 [L680] KernelMode = 0 [L681] Suspended = 0 [L682] Executive = 0 [L683] DiskController = 0 [L684] FloppyDiskPeripheral = 0 [L685] FlConfigCallBack = 0 [L686] MaximumInterfaceType = 0 [L687] MOUNTDEV_MOUNTED_DEVICE_GUID = 0 [L688] myStatus = 0 [L689] s = 0 [L690] UNLOADED = 0 [L691] NP = 0 [L692] DC = 0 [L693] SKIP1 = 0 [L694] SKIP2 = 0 [L695] MPR1 = 0 [L696] MPR3 = 0 [L697] IPC = 0 [L698] pended = 0 [L699] compRegistered = 0 [L700] lowerDriverReturn = 0 [L701] setEventCalled = 0 [L702] customIrp = 0 [L706] status = 0 [L707] pirp = irp [L708] CALL _BLAST_init() [L74] UNLOADED = 0 [L75] NP = 1 [L76] DC = 2 [L77] SKIP1 = 3 [L78] SKIP2 = 4 [L79] MPR1 = 5 [L80] MPR3 = 6 [L81] IPC = 7 [L82] s = UNLOADED [L83] pended = 0 [L84] compRegistered = 0 [L85] lowerDriverReturn = 0 [L86] setEventCalled = 0 [L87] customIrp = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L708] RET _BLAST_init() [L710] COND TRUE status >= 0 [L711] s = NP [L712] customIrp = 0 [L713] setEventCalled = customIrp [L714] lowerDriverReturn = setEventCalled [L715] compRegistered = lowerDriverReturn [L716] pended = compRegistered [L717] pirp__IoStatus__Status = 0 [L718] myStatus = 0 VAL [compRegistered=0, customIrp=0, DC=2, devobj=-1, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=0, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, UNLOADED=0] [L719] COND TRUE irp_choice == 0 [L720] pirp__IoStatus__Status = -1073741637 [L721] myStatus = -1073741637 VAL [compRegistered=0, customIrp=0, DC=2, devobj=-1, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=0, pirp__IoStatus__Status=-1073741637, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, UNLOADED=0] [L724] CALL stub_driver_init() [L661] s = NP [L662] pended = 0 [L663] compRegistered = 0 [L664] lowerDriverReturn = 0 [L665] setEventCalled = 0 [L666] customIrp = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L724] RET stub_driver_init() [L727] COND FALSE !(status < 0) [L731] int tmp_ndt_1; [L732] tmp_ndt_1 = __VERIFIER_nondet_int() [L733] COND TRUE tmp_ndt_1 == 3 VAL [compRegistered=0, customIrp=0, DC=2, devobj=-1, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=0, pirp__IoStatus__Status=-1073741637, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L740] CALL, EXPR FloppyPnp(devobj, pirp) [L164] int DeviceObject__DeviceExtension = __VERIFIER_nondet_int() ; [L165] int Irp__Tail__Overlay__CurrentStackLocation = __VERIFIER_nondet_int() ; [L166] int Irp__IoStatus__Information ; [L167] int Irp__IoStatus__Status ; [L168] int Irp__CurrentLocation = __VERIFIER_nondet_int() ; [L169] int disketteExtension__IsRemoved = __VERIFIER_nondet_int() ; [L170] int disketteExtension__IsStarted = __VERIFIER_nondet_int() ; [L171] int disketteExtension__TargetObject = __VERIFIER_nondet_int() ; [L172] int disketteExtension__HoldNewRequests ; [L173] int disketteExtension__FloppyThread = __VERIFIER_nondet_int() ; [L174] int disketteExtension__InterfaceString__Buffer = __VERIFIER_nondet_int() ; [L175] int disketteExtension__InterfaceString = __VERIFIER_nondet_int() ; [L176] int disketteExtension__ArcName__Length = __VERIFIER_nondet_int() ; [L177] int disketteExtension__ArcName = __VERIFIER_nondet_int() ; [L178] int irpSp__MinorFunction = __VERIFIER_nondet_int() ; [L179] int IoGetConfigurationInformation__FloppyCount = __VERIFIER_nondet_int() ; [L180] int irpSp ; [L181] int disketteExtension ; [L182] int ntStatus ; [L183] int doneEvent = __VERIFIER_nondet_int() ; [L184] int irpSp___0 ; [L185] int nextIrpSp ; [L186] int nextIrpSp__Control ; [L187] int irpSp___1 ; [L188] int irpSp__Context ; [L189] int irpSp__Control ; [L190] long __cil_tmp29 ; [L191] long __cil_tmp30 ; [L194] ntStatus = 0 [L195] PagingReferenceCount ++ VAL [\old(DeviceObject)=-1, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L196] COND TRUE PagingReferenceCount == 1 VAL [\old(DeviceObject)=-1, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L199] disketteExtension = DeviceObject__DeviceExtension [L200] irpSp = Irp__Tail__Overlay__CurrentStackLocation VAL [\old(DeviceObject)=-1, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L201] COND FALSE !(\read(disketteExtension__IsRemoved)) VAL [\old(DeviceObject)=-1, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L210] COND FALSE !(irpSp__MinorFunction == 0) VAL [\old(DeviceObject)=-1, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L213] COND TRUE irpSp__MinorFunction == 5 VAL [\old(DeviceObject)=-1, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L239] COND TRUE irpSp__MinorFunction == 5 VAL [\old(DeviceObject)=-1, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L242] COND FALSE !(! disketteExtension__IsStarted) [L258] disketteExtension__HoldNewRequests = 1 [L259] CALL, EXPR FlQueueIrpToThread(Irp, disketteExtension) [L101] int status ; [L102] int threadHandle = __VERIFIER_nondet_int() ; [L103] int DisketteExtension__PoweringDown = __VERIFIER_nondet_int() ; [L104] int DisketteExtension__ThreadReferenceCount = __VERIFIER_nondet_int() ; [L105] int DisketteExtension__FloppyThread = __VERIFIER_nondet_int() ; [L106] int Irp__IoStatus__Status ; [L107] int Irp__IoStatus__Information ; [L108] int Irp__Tail__Overlay__CurrentStackLocation__Control ; [L109] int ObjAttributes = __VERIFIER_nondet_int() ; [L110] int __cil_tmp12 ; [L111] int __cil_tmp13 ; VAL [\old(DisketteExtension)=0, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=0, DisketteExtension__FloppyThread=0, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ObjAttributes=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=0, UNLOADED=0] [L114] COND FALSE !(DisketteExtension__PoweringDown == 1) [L120] DisketteExtension__ThreadReferenceCount ++ VAL [\old(DisketteExtension)=0, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=0, DisketteExtension__FloppyThread=0, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ObjAttributes=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=0, UNLOADED=0] [L121] COND FALSE !(DisketteExtension__ThreadReferenceCount == 0) VAL [\old(DisketteExtension)=0, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=0, DisketteExtension__FloppyThread=0, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ObjAttributes=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=0, UNLOADED=0] [L153] COND TRUE pended == 0 [L154] pended = 1 VAL [\old(DisketteExtension)=0, \old(Irp)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=0, DisketteExtension__FloppyThread=0, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ObjAttributes=0, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=0, UNLOADED=0] [L160] return (259); VAL [\old(DisketteExtension)=0, \old(Irp)=0, \result=259, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=0, DisketteExtension__FloppyThread=0, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ObjAttributes=0, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=0, UNLOADED=0] [L259] RET, EXPR FlQueueIrpToThread(Irp, disketteExtension) [L259] ntStatus = FlQueueIrpToThread(Irp, disketteExtension) [L262] __cil_tmp29 = (long )ntStatus VAL [\old(DeviceObject)=-1, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L263] COND TRUE __cil_tmp29 == 259L VAL [\old(DeviceObject)=-1, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L265-L266] CALL KeWaitForSingleObject(disketteExtension__FloppyThread, Executive, KernelMode, 0, 0) VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=1, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1036] COND FALSE !(s == MPR3) VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=1, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, Object=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1045] COND FALSE !(customIrp == 1) VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=1, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, Object=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1049] COND FALSE !(s == MPR3) VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=1, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, Object=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1056] int tmp_ndt_8; [L1057] tmp_ndt_8 = __VERIFIER_nondet_int() [L1058] COND TRUE tmp_ndt_8 == 0 VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=1, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, Object=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, tmp_ndt_8=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1064] return (0); VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=1, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, \result=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, Object=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, tmp_ndt_8=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L265-L266] RET KeWaitForSingleObject(disketteExtension__FloppyThread, Executive, KernelMode, 0, 0) VAL [\old(DeviceObject)=-1, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, KeWaitForSingleObject(disketteExtension__FloppyThread, Executive, KernelMode, 0, 0)=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L268] COND TRUE disketteExtension__FloppyThread != 0 VAL [\old(DeviceObject)=-1, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L271] disketteExtension__FloppyThread = 0 [L272] Irp__IoStatus__Status = 0 [L273] myStatus = 0 VAL [\old(DeviceObject)=-1, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L274] COND TRUE s == NP [L275] s = SKIP1 VAL [\old(DeviceObject)=-1, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=-1, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L282] Irp__CurrentLocation ++ [L283] Irp__Tail__Overlay__CurrentStackLocation ++ VAL [\old(DeviceObject)=-1, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L284] CALL, EXPR IofCallDriver(disketteExtension__TargetObject, Irp) VAL [\old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L938] int returnVal2 ; [L939] int compRetStatus1 ; [L940] int lcontext = __VERIFIER_nondet_int() ; [L941] unsigned long __cil_tmp7 ; VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=-2, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L944] COND FALSE !(\read(compRegistered)) VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=-2, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L957] int tmp_ndt_12; [L958] tmp_ndt_12 = __VERIFIER_nondet_int() [L959] COND TRUE tmp_ndt_12 == 0 VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=-2, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_12=0, UNLOADED=0] [L970] returnVal2 = 0 VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=-2, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_12=0, UNLOADED=0] [L983] COND FALSE !(s == NP) VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=-2, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_12=0, UNLOADED=0] [L987] COND FALSE !(s == MPR1) VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=-2, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_12=0, UNLOADED=0] [L996] COND TRUE s == SKIP1 [L997] s = SKIP2 [L998] lowerDriverReturn = returnVal2 VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=-2, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_12=0, UNLOADED=0] [L1006] return (returnVal2); VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, \result=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=-2, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_12=0, UNLOADED=0] [L284] RET, EXPR IofCallDriver(disketteExtension__TargetObject, Irp) VAL [\old(DeviceObject)=-1, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IofCallDriver(disketteExtension__TargetObject, Irp)=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L284] ntStatus = IofCallDriver(disketteExtension__TargetObject, Irp) [L430] PagingReferenceCount -- VAL [\old(DeviceObject)=-1, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L431] COND TRUE PagingReferenceCount == 0 VAL [\old(DeviceObject)=-1, \old(Irp)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L434] return (ntStatus); VAL [\old(DeviceObject)=-1, \old(Irp)=0, \result=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=-1, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L740] RET, EXPR FloppyPnp(devobj, pirp) [L740] status = FloppyPnp(devobj, pirp) [L750] COND TRUE pended == 1 VAL [compRegistered=0, customIrp=0, DC=2, devobj=-1, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L751] COND FALSE !(s == NP) VAL [compRegistered=0, customIrp=0, DC=2, devobj=-1, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L758] COND TRUE pended == 1 VAL [compRegistered=0, customIrp=0, DC=2, devobj=-1, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L759] COND FALSE !(s == MPR3) VAL [compRegistered=0, customIrp=0, DC=2, devobj=-1, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L766] COND TRUE s != UNLOADED VAL [compRegistered=0, customIrp=0, DC=2, devobj=-1, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L767] COND TRUE status != -1 VAL [compRegistered=0, customIrp=0, DC=2, devobj=-1, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L768] COND FALSE !(s != SKIP2) VAL [compRegistered=0, customIrp=0, DC=2, devobj=-1, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L782] COND TRUE pended == 1 VAL [compRegistered=0, customIrp=0, DC=2, devobj=-1, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L783] COND TRUE status != 259 VAL [compRegistered=0, customIrp=0, DC=2, devobj=-1, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L784] CALL errorFn() VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L65] reach_error() VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] - UnprovableResult [Line: 670]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 239 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 7.1s, OverallIterations: 38, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6988 SdHoareTripleChecker+Valid, 3.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6857 mSDsluCounter, 40596 SdHoareTripleChecker+Invalid, 2.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 29280 mSDsCounter, 1082 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7500 IncrementalHoareTripleChecker+Invalid, 8582 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1082 mSolverCounterUnsat, 11316 mSDtfsCounter, 7500 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 362 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 232 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=657occurred in iteration=13, InterpolantAutomatonStates: 250, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 37 MinimizatonAttempts, 1015 StatesRemovedByMinimization, 33 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 1543 NumberOfCodeBlocks, 1543 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 1440 ConstructedInterpolants, 0 QuantifiedInterpolants, 3661 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 37 InterpolantComputations, 37 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-12-06 23:29:46,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa --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 ea94c2a7f5c98d387db22a0b269794366125ef96ca4390d29fd777c1f058153c --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 23:29:48,327 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 23:29:48,329 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 23:29:48,351 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 23:29:48,351 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 23:29:48,352 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 23:29:48,354 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 23:29:48,355 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 23:29:48,357 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 23:29:48,358 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 23:29:48,359 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 23:29:48,360 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 23:29:48,360 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 23:29:48,361 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 23:29:48,362 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 23:29:48,363 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 23:29:48,364 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 23:29:48,364 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 23:29:48,371 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 23:29:48,373 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 23:29:48,375 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 23:29:48,376 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 23:29:48,377 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 23:29:48,378 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 23:29:48,381 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 23:29:48,382 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 23:29:48,382 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 23:29:48,383 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 23:29:48,383 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 23:29:48,384 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 23:29:48,384 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 23:29:48,385 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 23:29:48,386 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 23:29:48,387 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 23:29:48,387 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 23:29:48,388 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 23:29:48,388 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 23:29:48,389 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 23:29:48,389 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 23:29:48,390 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 23:29:48,390 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 23:29:48,391 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-12-06 23:29:48,412 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 23:29:48,412 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 23:29:48,412 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 23:29:48,412 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 23:29:48,413 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 23:29:48,413 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 23:29:48,414 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 23:29:48,414 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 23:29:48,414 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 23:29:48,415 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 23:29:48,415 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 23:29:48,415 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 23:29:48,415 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 23:29:48,415 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 23:29:48,416 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 23:29:48,416 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-06 23:29:48,416 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-06 23:29:48,416 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-06 23:29:48,416 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 23:29:48,417 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-06 23:29:48,417 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-06 23:29:48,417 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-06 23:29:48,417 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 23:29:48,417 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 23:29:48,418 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 23:29:48,418 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 23:29:48,418 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 23:29:48,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 23:29:48,418 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 23:29:48,419 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 23:29:48,419 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-06 23:29:48,419 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-06 23:29:48,419 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 23:29:48,419 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-06 23:29:48,420 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea94c2a7f5c98d387db22a0b269794366125ef96ca4390d29fd777c1f058153c [2021-12-06 23:29:48,651 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 23:29:48,670 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 23:29:48,673 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 23:29:48,674 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 23:29:48,675 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 23:29:48,676 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c [2021-12-06 23:29:48,717 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/data/ff9be4311/06363b0ab16242a4b6727a471e69e6f0/FLAG029e5553c [2021-12-06 23:29:49,122 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 23:29:49,123 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c [2021-12-06 23:29:49,135 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/data/ff9be4311/06363b0ab16242a4b6727a471e69e6f0/FLAG029e5553c [2021-12-06 23:29:49,144 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/data/ff9be4311/06363b0ab16242a4b6727a471e69e6f0 [2021-12-06 23:29:49,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 23:29:49,147 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 23:29:49,148 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 23:29:49,148 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 23:29:49,150 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 23:29:49,151 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 11:29:49" (1/1) ... [2021-12-06 23:29:49,152 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@387ec49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:29:49, skipping insertion in model container [2021-12-06 23:29:49,152 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 11:29:49" (1/1) ... [2021-12-06 23:29:49,156 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 23:29:49,188 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 23:29:49,295 WARN L230 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_6329217b-4022-4001-a9fd-5301db493f68/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c[2713,2726] [2021-12-06 23:29:49,395 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 23:29:49,405 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 23:29:49,415 WARN L230 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_6329217b-4022-4001-a9fd-5301db493f68/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c[2713,2726] [2021-12-06 23:29:49,457 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 23:29:49,470 INFO L208 MainTranslator]: Completed translation [2021-12-06 23:29:49,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:29:49 WrapperNode [2021-12-06 23:29:49,470 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 23:29:49,471 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 23:29:49,471 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 23:29:49,471 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 23:29:49,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:29:49" (1/1) ... [2021-12-06 23:29:49,494 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:29:49" (1/1) ... [2021-12-06 23:29:49,541 INFO L137 Inliner]: procedures = 37, calls = 62, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 833 [2021-12-06 23:29:49,541 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 23:29:49,542 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 23:29:49,542 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 23:29:49,542 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 23:29:49,551 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:29:49" (1/1) ... [2021-12-06 23:29:49,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:29:49" (1/1) ... [2021-12-06 23:29:49,560 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:29:49" (1/1) ... [2021-12-06 23:29:49,561 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:29:49" (1/1) ... [2021-12-06 23:29:49,579 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:29:49" (1/1) ... [2021-12-06 23:29:49,589 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:29:49" (1/1) ... [2021-12-06 23:29:49,593 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:29:49" (1/1) ... [2021-12-06 23:29:49,601 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 23:29:49,602 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 23:29:49,602 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 23:29:49,602 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 23:29:49,603 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:29:49" (1/1) ... [2021-12-06 23:29:49,610 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 23:29:49,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:29:49,628 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 23:29:49,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 23:29:49,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 23:29:49,664 INFO L130 BoogieDeclarations]: Found specification of procedure IoSetDeviceInterfaceState [2021-12-06 23:29:49,664 INFO L138 BoogieDeclarations]: Found implementation of procedure IoSetDeviceInterfaceState [2021-12-06 23:29:49,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-06 23:29:49,664 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2021-12-06 23:29:49,664 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2021-12-06 23:29:49,664 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2021-12-06 23:29:49,664 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2021-12-06 23:29:49,664 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2021-12-06 23:29:49,664 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2021-12-06 23:29:49,664 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2021-12-06 23:29:49,664 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2021-12-06 23:29:49,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 23:29:49,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 23:29:49,791 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 23:29:49,793 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 23:29:49,800 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 23:29:49,852 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2021-12-06 23:29:49,852 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2021-12-06 23:29:49,853 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 23:29:49,865 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-12-06 23:29:49,865 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-12-06 23:29:49,879 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 23:29:49,883 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 23:29:49,886 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 23:29:49,890 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 23:29:49,892 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 23:29:49,894 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 23:29:49,895 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 23:29:49,896 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 23:29:49,900 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 23:29:50,232 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##86: assume !false; [2021-12-06 23:29:50,232 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume false; [2021-12-06 23:29:50,232 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##171: assume !false; [2021-12-06 23:29:50,232 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##170: assume false; [2021-12-06 23:29:50,233 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##75: assume !false; [2021-12-06 23:29:50,233 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##74: assume false; [2021-12-06 23:29:50,233 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##45: assume !false; [2021-12-06 23:29:50,233 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume false; [2021-12-06 23:29:50,233 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##32: assume !false; [2021-12-06 23:29:50,233 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##31: assume false; [2021-12-06 23:29:50,233 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume false; [2021-12-06 23:29:50,233 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !false; [2021-12-06 23:29:50,233 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##109: assume false; [2021-12-06 23:29:50,233 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##110: assume !false; [2021-12-06 23:29:50,234 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##119: assume !false; [2021-12-06 23:29:50,234 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##118: assume false; [2021-12-06 23:29:50,234 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##122: assume false; [2021-12-06 23:29:50,234 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##123: assume !false; [2021-12-06 23:29:50,235 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 23:29:50,264 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !false; [2021-12-06 23:29:50,265 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume false; [2021-12-06 23:29:50,268 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 23:29:50,276 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 23:29:50,276 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-06 23:29:50,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:29:50 BoogieIcfgContainer [2021-12-06 23:29:50,278 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 23:29:50,279 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 23:29:50,279 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 23:29:50,281 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 23:29:50,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 11:29:49" (1/3) ... [2021-12-06 23:29:50,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bb81129 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 11:29:50, skipping insertion in model container [2021-12-06 23:29:50,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:29:49" (2/3) ... [2021-12-06 23:29:50,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bb81129 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 11:29:50, skipping insertion in model container [2021-12-06 23:29:50,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:29:50" (3/3) ... [2021-12-06 23:29:50,284 INFO L111 eAbstractionObserver]: Analyzing ICFG floppy_simpl3.cil-1.c [2021-12-06 23:29:50,287 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 23:29:50,287 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-06 23:29:50,319 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 23:29:50,324 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 23:29:50,324 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-06 23:29:50,339 INFO L276 IsEmpty]: Start isEmpty. Operand has 239 states, 193 states have (on average 1.4870466321243523) internal successors, (287), 216 states have internal predecessors, (287), 38 states have call successors, (38), 5 states have call predecessors, (38), 5 states have return successors, (38), 32 states have call predecessors, (38), 38 states have call successors, (38) [2021-12-06 23:29:50,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-12-06 23:29:50,344 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:50,344 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:50,345 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:50,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:50,348 INFO L85 PathProgramCache]: Analyzing trace with hash -379437559, now seen corresponding path program 1 times [2021-12-06 23:29:50,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:29:50,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1199371980] [2021-12-06 23:29:50,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:50,358 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:29:50,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:29:50,359 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:29:50,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-06 23:29:50,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:50,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 23:29:50,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:29:50,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:50,491 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:29:50,492 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:29:50,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1199371980] [2021-12-06 23:29:50,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1199371980] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:50,493 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:50,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 23:29:50,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225151090] [2021-12-06 23:29:50,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:50,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:29:50,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:29:50,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:29:50,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:29:50,526 INFO L87 Difference]: Start difference. First operand has 239 states, 193 states have (on average 1.4870466321243523) internal successors, (287), 216 states have internal predecessors, (287), 38 states have call successors, (38), 5 states have call predecessors, (38), 5 states have return successors, (38), 32 states have call predecessors, (38), 38 states have call successors, (38) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:29:50,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:50,574 INFO L93 Difference]: Finished difference Result 237 states and 338 transitions. [2021-12-06 23:29:50,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:29:50,576 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-12-06 23:29:50,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:50,585 INFO L225 Difference]: With dead ends: 237 [2021-12-06 23:29:50,586 INFO L226 Difference]: Without dead ends: 235 [2021-12-06 23:29:50,587 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:29:50,589 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 194 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:50,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 449 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:29:50,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2021-12-06 23:29:50,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 235. [2021-12-06 23:29:50,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 191 states have (on average 1.4607329842931938) internal successors, (279), 212 states have internal predecessors, (279), 38 states have call successors, (38), 5 states have call predecessors, (38), 4 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2021-12-06 23:29:50,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 336 transitions. [2021-12-06 23:29:50,638 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 336 transitions. Word has length 8 [2021-12-06 23:29:50,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:50,639 INFO L470 AbstractCegarLoop]: Abstraction has 235 states and 336 transitions. [2021-12-06 23:29:50,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:29:50,639 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 336 transitions. [2021-12-06 23:29:50,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-06 23:29:50,639 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:50,639 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:50,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-06 23:29:50,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:29:50,841 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:50,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:50,842 INFO L85 PathProgramCache]: Analyzing trace with hash 229440231, now seen corresponding path program 1 times [2021-12-06 23:29:50,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:29:50,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [295764020] [2021-12-06 23:29:50,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:50,843 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:29:50,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:29:50,844 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:29:50,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-06 23:29:50,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:50,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 23:29:50,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:29:50,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:50,953 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:29:50,953 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:29:50,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [295764020] [2021-12-06 23:29:50,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [295764020] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:50,954 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:50,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 23:29:50,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058214433] [2021-12-06 23:29:50,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:50,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:29:50,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:29:50,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:29:50,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:29:50,957 INFO L87 Difference]: Start difference. First operand 235 states and 336 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:29:51,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:51,017 INFO L93 Difference]: Finished difference Result 234 states and 335 transitions. [2021-12-06 23:29:51,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:29:51,017 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-12-06 23:29:51,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:51,020 INFO L225 Difference]: With dead ends: 234 [2021-12-06 23:29:51,020 INFO L226 Difference]: Without dead ends: 231 [2021-12-06 23:29:51,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:29:51,022 INFO L933 BasicCegarLoop]: 335 mSDtfsCounter, 214 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:51,023 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 393 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:29:51,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-12-06 23:29:51,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2021-12-06 23:29:51,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 188 states have (on average 1.425531914893617) internal successors, (268), 208 states have internal predecessors, (268), 38 states have call successors, (38), 5 states have call predecessors, (38), 4 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2021-12-06 23:29:51,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 325 transitions. [2021-12-06 23:29:51,043 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 325 transitions. Word has length 11 [2021-12-06 23:29:51,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:51,043 INFO L470 AbstractCegarLoop]: Abstraction has 231 states and 325 transitions. [2021-12-06 23:29:51,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:29:51,043 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 325 transitions. [2021-12-06 23:29:51,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-06 23:29:51,044 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:51,044 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:51,051 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-12-06 23:29:51,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:29:51,247 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:51,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:51,249 INFO L85 PathProgramCache]: Analyzing trace with hash 24656821, now seen corresponding path program 1 times [2021-12-06 23:29:51,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:29:51,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1802720274] [2021-12-06 23:29:51,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:51,253 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:29:51,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:29:51,256 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:29:51,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-06 23:29:51,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:51,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 23:29:51,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:29:51,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:51,489 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:29:51,489 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:29:51,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1802720274] [2021-12-06 23:29:51,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1802720274] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:51,489 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:51,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 23:29:51,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960898433] [2021-12-06 23:29:51,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:51,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 23:29:51,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:29:51,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 23:29:51,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 23:29:51,491 INFO L87 Difference]: Start difference. First operand 231 states and 325 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:29:51,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:51,653 INFO L93 Difference]: Finished difference Result 348 states and 488 transitions. [2021-12-06 23:29:51,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 23:29:51,653 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-12-06 23:29:51,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:51,656 INFO L225 Difference]: With dead ends: 348 [2021-12-06 23:29:51,656 INFO L226 Difference]: Without dead ends: 347 [2021-12-06 23:29:51,656 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 23:29:51,657 INFO L933 BasicCegarLoop]: 405 mSDtfsCounter, 468 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:51,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [468 Valid, 543 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:29:51,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2021-12-06 23:29:51,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 328. [2021-12-06 23:29:51,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 282 states have (on average 1.3652482269503545) internal successors, (385), 287 states have internal predecessors, (385), 38 states have call successors, (38), 9 states have call predecessors, (38), 7 states have return successors, (40), 32 states have call predecessors, (40), 27 states have call successors, (40) [2021-12-06 23:29:51,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 463 transitions. [2021-12-06 23:29:51,676 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 463 transitions. Word has length 18 [2021-12-06 23:29:51,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:51,676 INFO L470 AbstractCegarLoop]: Abstraction has 328 states and 463 transitions. [2021-12-06 23:29:51,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:29:51,676 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 463 transitions. [2021-12-06 23:29:51,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-06 23:29:51,677 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:51,677 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:51,684 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-12-06 23:29:51,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:29:51,879 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:51,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:51,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1035240063, now seen corresponding path program 1 times [2021-12-06 23:29:51,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:29:51,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [114068942] [2021-12-06 23:29:51,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:51,883 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:29:51,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:29:51,886 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:29:51,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-06 23:29:52,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:52,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 23:29:52,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:29:52,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:52,072 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:29:52,072 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:29:52,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [114068942] [2021-12-06 23:29:52,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [114068942] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:52,072 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:52,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 23:29:52,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049593254] [2021-12-06 23:29:52,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:52,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:29:52,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:29:52,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:29:52,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:29:52,074 INFO L87 Difference]: Start difference. First operand 328 states and 463 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:29:52,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:52,096 INFO L93 Difference]: Finished difference Result 516 states and 723 transitions. [2021-12-06 23:29:52,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:29:52,097 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-12-06 23:29:52,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:52,100 INFO L225 Difference]: With dead ends: 516 [2021-12-06 23:29:52,100 INFO L226 Difference]: Without dead ends: 516 [2021-12-06 23:29:52,100 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:29:52,101 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 276 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:52,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [276 Valid, 485 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:29:52,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2021-12-06 23:29:52,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 487. [2021-12-06 23:29:52,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 424 states have (on average 1.3632075471698113) internal successors, (578), 426 states have internal predecessors, (578), 48 states have call successors, (48), 17 states have call predecessors, (48), 14 states have return successors, (61), 44 states have call predecessors, (61), 39 states have call successors, (61) [2021-12-06 23:29:52,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 687 transitions. [2021-12-06 23:29:52,125 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 687 transitions. Word has length 19 [2021-12-06 23:29:52,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:52,125 INFO L470 AbstractCegarLoop]: Abstraction has 487 states and 687 transitions. [2021-12-06 23:29:52,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:29:52,125 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 687 transitions. [2021-12-06 23:29:52,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-06 23:29:52,126 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:52,126 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:52,137 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-12-06 23:29:52,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:29:52,328 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:52,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:52,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1224032757, now seen corresponding path program 1 times [2021-12-06 23:29:52,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:29:52,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [523674711] [2021-12-06 23:29:52,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:52,330 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:29:52,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:29:52,331 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:29:52,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-06 23:29:52,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:52,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 23:29:52,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:29:52,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:52,487 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:29:52,488 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:29:52,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [523674711] [2021-12-06 23:29:52,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [523674711] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:52,488 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:52,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 23:29:52,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389996954] [2021-12-06 23:29:52,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:52,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:29:52,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:29:52,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:29:52,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:29:52,490 INFO L87 Difference]: Start difference. First operand 487 states and 687 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:29:52,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:52,519 INFO L93 Difference]: Finished difference Result 558 states and 775 transitions. [2021-12-06 23:29:52,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:29:52,519 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-12-06 23:29:52,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:52,524 INFO L225 Difference]: With dead ends: 558 [2021-12-06 23:29:52,524 INFO L226 Difference]: Without dead ends: 558 [2021-12-06 23:29:52,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:29:52,526 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 277 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:52,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [277 Valid, 389 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:29:52,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2021-12-06 23:29:52,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 531. [2021-12-06 23:29:52,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 462 states have (on average 1.3636363636363635) internal successors, (630), 470 states have internal predecessors, (630), 50 states have call successors, (50), 20 states have call predecessors, (50), 18 states have return successors, (65), 42 states have call predecessors, (65), 42 states have call successors, (65) [2021-12-06 23:29:52,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 745 transitions. [2021-12-06 23:29:52,550 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 745 transitions. Word has length 22 [2021-12-06 23:29:52,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:52,551 INFO L470 AbstractCegarLoop]: Abstraction has 531 states and 745 transitions. [2021-12-06 23:29:52,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:29:52,551 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 745 transitions. [2021-12-06 23:29:52,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-12-06 23:29:52,553 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:52,553 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:52,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-12-06 23:29:52,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:29:52,754 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:52,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:52,756 INFO L85 PathProgramCache]: Analyzing trace with hash 664756023, now seen corresponding path program 1 times [2021-12-06 23:29:52,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:29:52,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1326975641] [2021-12-06 23:29:52,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:52,759 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:29:52,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:29:52,761 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:29:52,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-12-06 23:29:52,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:52,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 23:29:52,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:29:53,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:53,007 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:29:53,007 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:29:53,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1326975641] [2021-12-06 23:29:53,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1326975641] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:53,008 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:53,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 23:29:53,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457566615] [2021-12-06 23:29:53,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:53,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 23:29:53,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:29:53,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 23:29:53,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 23:29:53,009 INFO L87 Difference]: Start difference. First operand 531 states and 745 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:29:53,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:53,041 INFO L93 Difference]: Finished difference Result 552 states and 772 transitions. [2021-12-06 23:29:53,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 23:29:53,041 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-12-06 23:29:53,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:53,048 INFO L225 Difference]: With dead ends: 552 [2021-12-06 23:29:53,048 INFO L226 Difference]: Without dead ends: 552 [2021-12-06 23:29:53,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:29:53,049 INFO L933 BasicCegarLoop]: 325 mSDtfsCounter, 43 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 927 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:53,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 927 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:29:53,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2021-12-06 23:29:53,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 533. [2021-12-06 23:29:53,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 464 states have (on average 1.3620689655172413) internal successors, (632), 472 states have internal predecessors, (632), 50 states have call successors, (50), 20 states have call predecessors, (50), 18 states have return successors, (65), 42 states have call predecessors, (65), 42 states have call successors, (65) [2021-12-06 23:29:53,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 747 transitions. [2021-12-06 23:29:53,073 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 747 transitions. Word has length 27 [2021-12-06 23:29:53,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:53,073 INFO L470 AbstractCegarLoop]: Abstraction has 533 states and 747 transitions. [2021-12-06 23:29:53,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:29:53,074 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 747 transitions. [2021-12-06 23:29:53,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-06 23:29:53,075 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:53,075 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:53,086 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-12-06 23:29:53,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:29:53,278 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:53,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:53,279 INFO L85 PathProgramCache]: Analyzing trace with hash -647747679, now seen corresponding path program 1 times [2021-12-06 23:29:53,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:29:53,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1160633638] [2021-12-06 23:29:53,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:53,281 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:29:53,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:29:53,282 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:29:53,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-12-06 23:29:53,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:53,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 23:29:53,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:29:53,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:53,382 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:29:53,382 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:29:53,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1160633638] [2021-12-06 23:29:53,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1160633638] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:53,382 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:53,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 23:29:53,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713555496] [2021-12-06 23:29:53,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:53,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:29:53,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:29:53,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:29:53,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:29:53,383 INFO L87 Difference]: Start difference. First operand 533 states and 747 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:53,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:53,431 INFO L93 Difference]: Finished difference Result 564 states and 786 transitions. [2021-12-06 23:29:53,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:29:53,432 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2021-12-06 23:29:53,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:53,435 INFO L225 Difference]: With dead ends: 564 [2021-12-06 23:29:53,435 INFO L226 Difference]: Without dead ends: 564 [2021-12-06 23:29:53,435 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:29:53,436 INFO L933 BasicCegarLoop]: 294 mSDtfsCounter, 24 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:53,436 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 546 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:29:53,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2021-12-06 23:29:53,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 560. [2021-12-06 23:29:53,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 491 states have (on average 1.3604887983706722) internal successors, (668), 498 states have internal predecessors, (668), 50 states have call successors, (50), 20 states have call predecessors, (50), 18 states have return successors, (65), 42 states have call predecessors, (65), 42 states have call successors, (65) [2021-12-06 23:29:53,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 783 transitions. [2021-12-06 23:29:53,450 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 783 transitions. Word has length 29 [2021-12-06 23:29:53,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:53,451 INFO L470 AbstractCegarLoop]: Abstraction has 560 states and 783 transitions. [2021-12-06 23:29:53,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:53,451 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 783 transitions. [2021-12-06 23:29:53,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-06 23:29:53,452 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:53,452 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:53,459 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-12-06 23:29:53,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:29:53,654 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:53,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:53,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1847797176, now seen corresponding path program 1 times [2021-12-06 23:29:53,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:29:53,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1422024510] [2021-12-06 23:29:53,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:53,657 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:29:53,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:29:53,659 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:29:53,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-12-06 23:29:53,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:53,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 23:29:53,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:29:53,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:53,927 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:29:53,928 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:29:53,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1422024510] [2021-12-06 23:29:53,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1422024510] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:53,928 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:53,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 23:29:53,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715737857] [2021-12-06 23:29:53,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:53,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 23:29:53,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:29:53,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 23:29:53,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:29:53,929 INFO L87 Difference]: Start difference. First operand 560 states and 783 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:54,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:54,057 INFO L93 Difference]: Finished difference Result 564 states and 784 transitions. [2021-12-06 23:29:54,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 23:29:54,057 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2021-12-06 23:29:54,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:54,060 INFO L225 Difference]: With dead ends: 564 [2021-12-06 23:29:54,060 INFO L226 Difference]: Without dead ends: 564 [2021-12-06 23:29:54,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:29:54,061 INFO L933 BasicCegarLoop]: 291 mSDtfsCounter, 357 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:54,061 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [361 Valid, 502 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:29:54,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2021-12-06 23:29:54,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 560. [2021-12-06 23:29:54,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 491 states have (on average 1.3564154786150713) internal successors, (666), 498 states have internal predecessors, (666), 50 states have call successors, (50), 20 states have call predecessors, (50), 18 states have return successors, (65), 42 states have call predecessors, (65), 42 states have call successors, (65) [2021-12-06 23:29:54,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 781 transitions. [2021-12-06 23:29:54,074 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 781 transitions. Word has length 30 [2021-12-06 23:29:54,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:54,075 INFO L470 AbstractCegarLoop]: Abstraction has 560 states and 781 transitions. [2021-12-06 23:29:54,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:54,075 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 781 transitions. [2021-12-06 23:29:54,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-06 23:29:54,076 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:54,076 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:54,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-12-06 23:29:54,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:29:54,278 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:54,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:54,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1158944726, now seen corresponding path program 1 times [2021-12-06 23:29:54,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:29:54,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [683913647] [2021-12-06 23:29:54,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:54,281 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:29:54,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:29:54,284 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:29:54,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-12-06 23:29:54,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:54,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 23:29:54,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:29:54,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:54,531 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:29:54,531 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:29:54,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [683913647] [2021-12-06 23:29:54,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [683913647] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:54,531 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:54,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 23:29:54,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082219402] [2021-12-06 23:29:54,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:54,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 23:29:54,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:29:54,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 23:29:54,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 23:29:54,532 INFO L87 Difference]: Start difference. First operand 560 states and 781 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:29:54,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:54,662 INFO L93 Difference]: Finished difference Result 572 states and 797 transitions. [2021-12-06 23:29:54,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 23:29:54,663 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-12-06 23:29:54,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:54,666 INFO L225 Difference]: With dead ends: 572 [2021-12-06 23:29:54,666 INFO L226 Difference]: Without dead ends: 572 [2021-12-06 23:29:54,666 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 23:29:54,666 INFO L933 BasicCegarLoop]: 296 mSDtfsCounter, 301 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:54,667 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [301 Valid, 506 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:29:54,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2021-12-06 23:29:54,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 571. [2021-12-06 23:29:54,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 502 states have (on average 1.3545816733067728) internal successors, (680), 508 states have internal predecessors, (680), 50 states have call successors, (50), 21 states have call predecessors, (50), 18 states have return successors, (65), 42 states have call predecessors, (65), 42 states have call successors, (65) [2021-12-06 23:29:54,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 795 transitions. [2021-12-06 23:29:54,680 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 795 transitions. Word has length 30 [2021-12-06 23:29:54,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:54,680 INFO L470 AbstractCegarLoop]: Abstraction has 571 states and 795 transitions. [2021-12-06 23:29:54,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:29:54,680 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 795 transitions. [2021-12-06 23:29:54,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-06 23:29:54,681 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:54,681 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:54,688 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-12-06 23:29:54,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:29:54,884 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:54,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:54,885 INFO L85 PathProgramCache]: Analyzing trace with hash -883889712, now seen corresponding path program 1 times [2021-12-06 23:29:54,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:29:54,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2128510621] [2021-12-06 23:29:54,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:54,885 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:29:54,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:29:54,886 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:29:54,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-12-06 23:29:54,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:54,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 23:29:54,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:29:55,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:55,046 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:29:55,047 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:29:55,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2128510621] [2021-12-06 23:29:55,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2128510621] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:55,047 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:55,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 23:29:55,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665130335] [2021-12-06 23:29:55,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:55,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 23:29:55,047 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:29:55,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 23:29:55,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 23:29:55,048 INFO L87 Difference]: Start difference. First operand 571 states and 795 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:29:55,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:55,239 INFO L93 Difference]: Finished difference Result 613 states and 840 transitions. [2021-12-06 23:29:55,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 23:29:55,239 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-12-06 23:29:55,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:55,242 INFO L225 Difference]: With dead ends: 613 [2021-12-06 23:29:55,242 INFO L226 Difference]: Without dead ends: 613 [2021-12-06 23:29:55,242 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:29:55,243 INFO L933 BasicCegarLoop]: 389 mSDtfsCounter, 518 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:55,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [522 Valid, 527 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 23:29:55,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2021-12-06 23:29:55,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 568. [2021-12-06 23:29:55,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 499 states have (on average 1.3386773547094188) internal successors, (668), 505 states have internal predecessors, (668), 50 states have call successors, (50), 21 states have call predecessors, (50), 18 states have return successors, (65), 42 states have call predecessors, (65), 42 states have call successors, (65) [2021-12-06 23:29:55,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 783 transitions. [2021-12-06 23:29:55,256 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 783 transitions. Word has length 30 [2021-12-06 23:29:55,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:55,257 INFO L470 AbstractCegarLoop]: Abstraction has 568 states and 783 transitions. [2021-12-06 23:29:55,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:29:55,257 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 783 transitions. [2021-12-06 23:29:55,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-12-06 23:29:55,257 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:55,258 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:55,269 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2021-12-06 23:29:55,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:29:55,458 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:55,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:55,459 INFO L85 PathProgramCache]: Analyzing trace with hash 558422765, now seen corresponding path program 1 times [2021-12-06 23:29:55,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:29:55,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1312308360] [2021-12-06 23:29:55,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:55,459 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:29:55,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:29:55,460 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:29:55,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-12-06 23:29:55,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:55,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 23:29:55,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:29:55,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:55,624 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:29:55,624 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:29:55,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1312308360] [2021-12-06 23:29:55,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1312308360] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:55,624 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:55,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 23:29:55,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879026675] [2021-12-06 23:29:55,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:55,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 23:29:55,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:29:55,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 23:29:55,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:29:55,626 INFO L87 Difference]: Start difference. First operand 568 states and 783 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:55,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:55,787 INFO L93 Difference]: Finished difference Result 572 states and 784 transitions. [2021-12-06 23:29:55,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 23:29:55,788 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2021-12-06 23:29:55,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:55,791 INFO L225 Difference]: With dead ends: 572 [2021-12-06 23:29:55,791 INFO L226 Difference]: Without dead ends: 572 [2021-12-06 23:29:55,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:29:55,791 INFO L933 BasicCegarLoop]: 291 mSDtfsCounter, 309 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:55,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [309 Valid, 713 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:29:55,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2021-12-06 23:29:55,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 568. [2021-12-06 23:29:55,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 499 states have (on average 1.3346693386773547) internal successors, (666), 505 states have internal predecessors, (666), 50 states have call successors, (50), 21 states have call predecessors, (50), 18 states have return successors, (65), 42 states have call predecessors, (65), 42 states have call successors, (65) [2021-12-06 23:29:55,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 781 transitions. [2021-12-06 23:29:55,806 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 781 transitions. Word has length 31 [2021-12-06 23:29:55,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:55,806 INFO L470 AbstractCegarLoop]: Abstraction has 568 states and 781 transitions. [2021-12-06 23:29:55,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:55,806 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 781 transitions. [2021-12-06 23:29:55,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-06 23:29:55,807 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:55,807 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:55,818 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-12-06 23:29:56,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:29:56,008 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:56,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:56,008 INFO L85 PathProgramCache]: Analyzing trace with hash 186689025, now seen corresponding path program 1 times [2021-12-06 23:29:56,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:29:56,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [704067191] [2021-12-06 23:29:56,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:56,009 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:29:56,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:29:56,009 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:29:56,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-12-06 23:29:56,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:56,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 23:29:56,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:29:56,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:56,120 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:29:56,120 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:29:56,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [704067191] [2021-12-06 23:29:56,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [704067191] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:56,120 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:56,120 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 23:29:56,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844555971] [2021-12-06 23:29:56,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:56,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 23:29:56,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:29:56,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 23:29:56,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 23:29:56,122 INFO L87 Difference]: Start difference. First operand 568 states and 781 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:56,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:56,147 INFO L93 Difference]: Finished difference Result 579 states and 791 transitions. [2021-12-06 23:29:56,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 23:29:56,148 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2021-12-06 23:29:56,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:56,150 INFO L225 Difference]: With dead ends: 579 [2021-12-06 23:29:56,151 INFO L226 Difference]: Without dead ends: 566 [2021-12-06 23:29:56,151 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:29:56,151 INFO L933 BasicCegarLoop]: 301 mSDtfsCounter, 10 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 894 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:56,152 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 894 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:29:56,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2021-12-06 23:29:56,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 566. [2021-12-06 23:29:56,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 498 states have (on average 1.3333333333333333) internal successors, (664), 504 states have internal predecessors, (664), 49 states have call successors, (49), 21 states have call predecessors, (49), 18 states have return successors, (64), 41 states have call predecessors, (64), 41 states have call successors, (64) [2021-12-06 23:29:56,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 777 transitions. [2021-12-06 23:29:56,164 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 777 transitions. Word has length 32 [2021-12-06 23:29:56,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:56,164 INFO L470 AbstractCegarLoop]: Abstraction has 566 states and 777 transitions. [2021-12-06 23:29:56,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:56,165 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 777 transitions. [2021-12-06 23:29:56,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-12-06 23:29:56,165 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:56,166 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:56,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2021-12-06 23:29:56,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:29:56,366 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:56,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:56,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1105645113, now seen corresponding path program 1 times [2021-12-06 23:29:56,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:29:56,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1983778621] [2021-12-06 23:29:56,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:56,367 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:29:56,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:29:56,368 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:29:56,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-12-06 23:29:56,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:56,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 23:29:56,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:29:56,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:56,465 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:29:56,466 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:29:56,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1983778621] [2021-12-06 23:29:56,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1983778621] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:56,466 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:56,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 23:29:56,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712544687] [2021-12-06 23:29:56,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:56,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:29:56,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:29:56,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:29:56,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:29:56,467 INFO L87 Difference]: Start difference. First operand 566 states and 777 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:29:56,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:56,508 INFO L93 Difference]: Finished difference Result 574 states and 788 transitions. [2021-12-06 23:29:56,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:29:56,508 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-12-06 23:29:56,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:56,511 INFO L225 Difference]: With dead ends: 574 [2021-12-06 23:29:56,511 INFO L226 Difference]: Without dead ends: 574 [2021-12-06 23:29:56,511 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:29:56,512 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 5 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:56,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 564 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:29:56,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2021-12-06 23:29:56,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 574. [2021-12-06 23:29:56,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 506 states have (on average 1.3339920948616601) internal successors, (675), 512 states have internal predecessors, (675), 49 states have call successors, (49), 21 states have call predecessors, (49), 18 states have return successors, (64), 41 states have call predecessors, (64), 41 states have call successors, (64) [2021-12-06 23:29:56,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 788 transitions. [2021-12-06 23:29:56,529 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 788 transitions. Word has length 34 [2021-12-06 23:29:56,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:56,530 INFO L470 AbstractCegarLoop]: Abstraction has 574 states and 788 transitions. [2021-12-06 23:29:56,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:29:56,530 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 788 transitions. [2021-12-06 23:29:56,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-12-06 23:29:56,531 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:56,531 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:56,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-12-06 23:29:56,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:29:56,733 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:56,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:56,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1517933043, now seen corresponding path program 1 times [2021-12-06 23:29:56,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:29:56,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1353599231] [2021-12-06 23:29:56,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:56,736 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:29:56,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:29:56,738 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:29:56,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-12-06 23:29:56,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:56,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 23:29:56,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:29:56,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:56,972 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:29:56,972 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:29:56,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1353599231] [2021-12-06 23:29:56,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1353599231] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:56,972 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:56,972 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 23:29:56,973 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154971690] [2021-12-06 23:29:56,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:56,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:29:56,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:29:56,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:29:56,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:29:56,973 INFO L87 Difference]: Start difference. First operand 574 states and 788 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:56,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:56,986 INFO L93 Difference]: Finished difference Result 464 states and 611 transitions. [2021-12-06 23:29:56,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:29:56,986 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37 [2021-12-06 23:29:56,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:56,988 INFO L225 Difference]: With dead ends: 464 [2021-12-06 23:29:56,988 INFO L226 Difference]: Without dead ends: 464 [2021-12-06 23:29:56,989 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:29:56,989 INFO L933 BasicCegarLoop]: 345 mSDtfsCounter, 152 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:56,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 537 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:29:56,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2021-12-06 23:29:56,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 435. [2021-12-06 23:29:56,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 383 states have (on average 1.3133159268929504) internal successors, (503), 391 states have internal predecessors, (503), 36 states have call successors, (36), 16 states have call predecessors, (36), 15 states have return successors, (36), 28 states have call predecessors, (36), 28 states have call successors, (36) [2021-12-06 23:29:56,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 575 transitions. [2021-12-06 23:29:56,997 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 575 transitions. Word has length 37 [2021-12-06 23:29:56,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:56,997 INFO L470 AbstractCegarLoop]: Abstraction has 435 states and 575 transitions. [2021-12-06 23:29:56,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:56,997 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 575 transitions. [2021-12-06 23:29:56,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-12-06 23:29:56,998 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:56,998 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:57,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-12-06 23:29:57,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:29:57,200 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:57,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:57,201 INFO L85 PathProgramCache]: Analyzing trace with hash -688802546, now seen corresponding path program 1 times [2021-12-06 23:29:57,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:29:57,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [244758814] [2021-12-06 23:29:57,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:57,202 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:29:57,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:29:57,204 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:29:57,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-12-06 23:29:57,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:57,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 23:29:57,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:29:57,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:57,342 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:29:57,342 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:29:57,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [244758814] [2021-12-06 23:29:57,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [244758814] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:57,342 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:57,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 23:29:57,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719189688] [2021-12-06 23:29:57,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:57,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 23:29:57,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:29:57,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 23:29:57,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 23:29:57,343 INFO L87 Difference]: Start difference. First operand 435 states and 575 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:57,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:57,356 INFO L93 Difference]: Finished difference Result 418 states and 549 transitions. [2021-12-06 23:29:57,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 23:29:57,357 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2021-12-06 23:29:57,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:57,359 INFO L225 Difference]: With dead ends: 418 [2021-12-06 23:29:57,359 INFO L226 Difference]: Without dead ends: 418 [2021-12-06 23:29:57,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:29:57,359 INFO L933 BasicCegarLoop]: 309 mSDtfsCounter, 39 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 888 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:57,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 888 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:29:57,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2021-12-06 23:29:57,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2021-12-06 23:29:57,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 367 states have (on average 1.3024523160762942) internal successors, (478), 374 states have internal predecessors, (478), 35 states have call successors, (35), 16 states have call predecessors, (35), 15 states have return successors, (36), 28 states have call predecessors, (36), 28 states have call successors, (36) [2021-12-06 23:29:57,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 549 transitions. [2021-12-06 23:29:57,367 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 549 transitions. Word has length 40 [2021-12-06 23:29:57,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:57,367 INFO L470 AbstractCegarLoop]: Abstraction has 418 states and 549 transitions. [2021-12-06 23:29:57,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:57,367 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 549 transitions. [2021-12-06 23:29:57,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-12-06 23:29:57,368 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:57,368 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:57,379 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2021-12-06 23:29:57,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:29:57,569 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:57,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:57,569 INFO L85 PathProgramCache]: Analyzing trace with hash 379915809, now seen corresponding path program 1 times [2021-12-06 23:29:57,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:29:57,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1936202121] [2021-12-06 23:29:57,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:57,569 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:29:57,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:29:57,570 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:29:57,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-12-06 23:29:57,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:57,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 23:29:57,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:29:57,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:57,758 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:29:57,758 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:29:57,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1936202121] [2021-12-06 23:29:57,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1936202121] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:57,758 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:57,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:29:57,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186300757] [2021-12-06 23:29:57,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:57,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:29:57,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:29:57,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:29:57,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:29:57,760 INFO L87 Difference]: Start difference. First operand 418 states and 549 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:57,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:57,990 INFO L93 Difference]: Finished difference Result 436 states and 570 transitions. [2021-12-06 23:29:57,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 23:29:57,991 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2021-12-06 23:29:57,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:57,993 INFO L225 Difference]: With dead ends: 436 [2021-12-06 23:29:57,993 INFO L226 Difference]: Without dead ends: 436 [2021-12-06 23:29:57,993 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-12-06 23:29:57,993 INFO L933 BasicCegarLoop]: 291 mSDtfsCounter, 338 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:57,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [346 Valid, 920 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 23:29:57,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2021-12-06 23:29:57,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 424. [2021-12-06 23:29:58,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 372 states have (on average 1.2956989247311828) internal successors, (482), 380 states have internal predecessors, (482), 35 states have call successors, (35), 16 states have call predecessors, (35), 16 states have return successors, (39), 28 states have call predecessors, (39), 28 states have call successors, (39) [2021-12-06 23:29:58,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 556 transitions. [2021-12-06 23:29:58,001 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 556 transitions. Word has length 40 [2021-12-06 23:29:58,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:58,001 INFO L470 AbstractCegarLoop]: Abstraction has 424 states and 556 transitions. [2021-12-06 23:29:58,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:58,002 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 556 transitions. [2021-12-06 23:29:58,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-12-06 23:29:58,002 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:58,002 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:58,009 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (17)] Ended with exit code 0 [2021-12-06 23:29:58,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:29:58,204 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:58,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:58,205 INFO L85 PathProgramCache]: Analyzing trace with hash -377925879, now seen corresponding path program 1 times [2021-12-06 23:29:58,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:29:58,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1757725513] [2021-12-06 23:29:58,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:58,207 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:29:58,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:29:58,209 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:29:58,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-12-06 23:29:58,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:58,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 23:29:58,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:29:58,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:58,414 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:29:58,414 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:29:58,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1757725513] [2021-12-06 23:29:58,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1757725513] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:58,414 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:58,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 23:29:58,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096101395] [2021-12-06 23:29:58,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:58,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 23:29:58,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:29:58,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 23:29:58,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 23:29:58,415 INFO L87 Difference]: Start difference. First operand 424 states and 556 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:58,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:58,501 INFO L93 Difference]: Finished difference Result 424 states and 555 transitions. [2021-12-06 23:29:58,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 23:29:58,502 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2021-12-06 23:29:58,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:58,504 INFO L225 Difference]: With dead ends: 424 [2021-12-06 23:29:58,504 INFO L226 Difference]: Without dead ends: 424 [2021-12-06 23:29:58,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 23:29:58,505 INFO L933 BasicCegarLoop]: 282 mSDtfsCounter, 275 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:58,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [275 Valid, 494 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:29:58,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2021-12-06 23:29:58,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 424. [2021-12-06 23:29:58,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 372 states have (on average 1.293010752688172) internal successors, (481), 380 states have internal predecessors, (481), 35 states have call successors, (35), 16 states have call predecessors, (35), 16 states have return successors, (39), 28 states have call predecessors, (39), 28 states have call successors, (39) [2021-12-06 23:29:58,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 555 transitions. [2021-12-06 23:29:58,512 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 555 transitions. Word has length 42 [2021-12-06 23:29:58,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:58,512 INFO L470 AbstractCegarLoop]: Abstraction has 424 states and 555 transitions. [2021-12-06 23:29:58,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:58,512 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 555 transitions. [2021-12-06 23:29:58,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-12-06 23:29:58,513 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:58,513 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:58,520 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (18)] Ended with exit code 0 [2021-12-06 23:29:58,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:29:58,715 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:58,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:58,715 INFO L85 PathProgramCache]: Analyzing trace with hash -746395849, now seen corresponding path program 1 times [2021-12-06 23:29:58,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:29:58,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [921546486] [2021-12-06 23:29:58,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:58,716 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:29:58,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:29:58,717 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:29:58,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-12-06 23:29:58,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:58,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 23:29:58,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:29:58,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:58,852 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:29:58,852 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:29:58,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [921546486] [2021-12-06 23:29:58,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [921546486] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:58,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:58,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 23:29:58,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159384868] [2021-12-06 23:29:58,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:58,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 23:29:58,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:29:58,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 23:29:58,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:29:58,854 INFO L87 Difference]: Start difference. First operand 424 states and 555 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:58,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:58,889 INFO L93 Difference]: Finished difference Result 441 states and 573 transitions. [2021-12-06 23:29:58,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 23:29:58,889 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41 [2021-12-06 23:29:58,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:58,891 INFO L225 Difference]: With dead ends: 441 [2021-12-06 23:29:58,892 INFO L226 Difference]: Without dead ends: 420 [2021-12-06 23:29:58,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:29:58,892 INFO L933 BasicCegarLoop]: 291 mSDtfsCounter, 40 mSDsluCounter, 857 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 1148 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 [2021-12-06 23:29:58,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 1148 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:29:58,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2021-12-06 23:29:58,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 418. [2021-12-06 23:29:58,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 368 states have (on average 1.2907608695652173) internal successors, (475), 375 states have internal predecessors, (475), 34 states have call successors, (34), 15 states have call predecessors, (34), 15 states have return successors, (38), 28 states have call predecessors, (38), 27 states have call successors, (38) [2021-12-06 23:29:58,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 547 transitions. [2021-12-06 23:29:58,902 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 547 transitions. Word has length 41 [2021-12-06 23:29:58,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:58,903 INFO L470 AbstractCegarLoop]: Abstraction has 418 states and 547 transitions. [2021-12-06 23:29:58,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:58,903 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 547 transitions. [2021-12-06 23:29:58,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-12-06 23:29:58,904 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:58,904 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:58,911 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (19)] Ended with exit code 0 [2021-12-06 23:29:59,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:29:59,106 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:59,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:59,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1663005190, now seen corresponding path program 1 times [2021-12-06 23:29:59,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:29:59,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [414802951] [2021-12-06 23:29:59,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:59,109 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:29:59,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:29:59,111 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:29:59,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-12-06 23:29:59,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:59,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 23:29:59,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:29:59,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:59,322 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:29:59,323 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:29:59,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [414802951] [2021-12-06 23:29:59,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [414802951] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:59,323 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:59,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:29:59,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180321950] [2021-12-06 23:29:59,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:59,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:29:59,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:29:59,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:29:59,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:29:59,324 INFO L87 Difference]: Start difference. First operand 418 states and 547 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:59,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:59,499 INFO L93 Difference]: Finished difference Result 419 states and 545 transitions. [2021-12-06 23:29:59,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 23:29:59,500 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2021-12-06 23:29:59,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:59,501 INFO L225 Difference]: With dead ends: 419 [2021-12-06 23:29:59,501 INFO L226 Difference]: Without dead ends: 419 [2021-12-06 23:29:59,502 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-12-06 23:29:59,502 INFO L933 BasicCegarLoop]: 281 mSDtfsCounter, 322 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 911 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:59,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [324 Valid, 911 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 23:29:59,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2021-12-06 23:29:59,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 407. [2021-12-06 23:29:59,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 358 states have (on average 1.2849162011173185) internal successors, (460), 365 states have internal predecessors, (460), 34 states have call successors, (34), 15 states have call predecessors, (34), 14 states have return successors, (37), 27 states have call predecessors, (37), 27 states have call successors, (37) [2021-12-06 23:29:59,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 531 transitions. [2021-12-06 23:29:59,509 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 531 transitions. Word has length 42 [2021-12-06 23:29:59,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:59,509 INFO L470 AbstractCegarLoop]: Abstraction has 407 states and 531 transitions. [2021-12-06 23:29:59,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:59,509 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 531 transitions. [2021-12-06 23:29:59,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-12-06 23:29:59,510 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:59,510 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:59,521 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (20)] Ended with exit code 0 [2021-12-06 23:29:59,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:29:59,710 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:29:59,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:29:59,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1049211654, now seen corresponding path program 1 times [2021-12-06 23:29:59,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:29:59,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [16040246] [2021-12-06 23:29:59,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:29:59,711 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:29:59,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:29:59,712 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:29:59,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-12-06 23:29:59,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:29:59,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 23:29:59,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:29:59,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:29:59,802 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:29:59,802 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:29:59,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [16040246] [2021-12-06 23:29:59,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [16040246] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:29:59,803 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:29:59,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 23:29:59,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675785027] [2021-12-06 23:29:59,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:29:59,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:29:59,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:29:59,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:29:59,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:29:59,804 INFO L87 Difference]: Start difference. First operand 407 states and 531 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:59,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:29:59,836 INFO L93 Difference]: Finished difference Result 407 states and 523 transitions. [2021-12-06 23:29:59,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:29:59,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2021-12-06 23:29:59,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:29:59,838 INFO L225 Difference]: With dead ends: 407 [2021-12-06 23:29:59,838 INFO L226 Difference]: Without dead ends: 407 [2021-12-06 23:29:59,838 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:29:59,839 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 49 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:29:59,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 534 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:29:59,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2021-12-06 23:29:59,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 401. [2021-12-06 23:29:59,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 353 states have (on average 1.2691218130311614) internal successors, (448), 359 states have internal predecessors, (448), 33 states have call successors, (33), 15 states have call predecessors, (33), 14 states have return successors, (37), 27 states have call predecessors, (37), 27 states have call successors, (37) [2021-12-06 23:29:59,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 518 transitions. [2021-12-06 23:29:59,846 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 518 transitions. Word has length 42 [2021-12-06 23:29:59,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:29:59,846 INFO L470 AbstractCegarLoop]: Abstraction has 401 states and 518 transitions. [2021-12-06 23:29:59,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:29:59,847 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 518 transitions. [2021-12-06 23:29:59,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-12-06 23:29:59,848 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:29:59,848 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:29:59,855 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (21)] Ended with exit code 0 [2021-12-06 23:30:00,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:30:00,050 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:30:00,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:30:00,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1312430958, now seen corresponding path program 1 times [2021-12-06 23:30:00,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:30:00,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1210944724] [2021-12-06 23:30:00,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:30:00,053 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:30:00,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:30:00,055 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:30:00,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-12-06 23:30:00,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:30:00,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 23:30:00,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:30:00,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:30:00,170 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:30:00,171 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:30:00,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1210944724] [2021-12-06 23:30:00,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1210944724] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:30:00,171 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:30:00,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 23:30:00,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465932325] [2021-12-06 23:30:00,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:30:00,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:30:00,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:30:00,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:30:00,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:30:00,172 INFO L87 Difference]: Start difference. First operand 401 states and 518 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:30:00,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:30:00,181 INFO L93 Difference]: Finished difference Result 419 states and 544 transitions. [2021-12-06 23:30:00,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:30:00,181 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2021-12-06 23:30:00,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:30:00,183 INFO L225 Difference]: With dead ends: 419 [2021-12-06 23:30:00,183 INFO L226 Difference]: Without dead ends: 419 [2021-12-06 23:30:00,183 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:30:00,183 INFO L933 BasicCegarLoop]: 288 mSDtfsCounter, 5 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:30:00,184 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 571 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:30:00,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2021-12-06 23:30:00,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 404. [2021-12-06 23:30:00,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 356 states have (on average 1.2668539325842696) internal successors, (451), 362 states have internal predecessors, (451), 33 states have call successors, (33), 15 states have call predecessors, (33), 14 states have return successors, (37), 27 states have call predecessors, (37), 27 states have call successors, (37) [2021-12-06 23:30:00,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 521 transitions. [2021-12-06 23:30:00,190 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 521 transitions. Word has length 44 [2021-12-06 23:30:00,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:30:00,190 INFO L470 AbstractCegarLoop]: Abstraction has 404 states and 521 transitions. [2021-12-06 23:30:00,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:30:00,191 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 521 transitions. [2021-12-06 23:30:00,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-12-06 23:30:00,191 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:30:00,191 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:30:00,198 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (22)] Ended with exit code 0 [2021-12-06 23:30:00,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:30:00,393 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:30:00,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:30:00,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1381038349, now seen corresponding path program 1 times [2021-12-06 23:30:00,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:30:00,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [485771422] [2021-12-06 23:30:00,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:30:00,396 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:30:00,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:30:00,398 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:30:00,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-12-06 23:30:00,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:30:00,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 23:30:00,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:30:00,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:30:00,646 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:30:00,646 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:30:00,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [485771422] [2021-12-06 23:30:00,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [485771422] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:30:00,647 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:30:00,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 23:30:00,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133562486] [2021-12-06 23:30:00,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:30:00,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 23:30:00,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:30:00,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 23:30:00,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 23:30:00,648 INFO L87 Difference]: Start difference. First operand 404 states and 521 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:30:00,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:30:00,733 INFO L93 Difference]: Finished difference Result 408 states and 523 transitions. [2021-12-06 23:30:00,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 23:30:00,734 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2021-12-06 23:30:00,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:30:00,736 INFO L225 Difference]: With dead ends: 408 [2021-12-06 23:30:00,736 INFO L226 Difference]: Without dead ends: 408 [2021-12-06 23:30:00,736 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:30:00,737 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 291 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:30:00,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [296 Valid, 497 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:30:00,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2021-12-06 23:30:00,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 404. [2021-12-06 23:30:00,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 356 states have (on average 1.2640449438202248) internal successors, (450), 362 states have internal predecessors, (450), 33 states have call successors, (33), 15 states have call predecessors, (33), 14 states have return successors, (37), 27 states have call predecessors, (37), 27 states have call successors, (37) [2021-12-06 23:30:00,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 520 transitions. [2021-12-06 23:30:00,743 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 520 transitions. Word has length 43 [2021-12-06 23:30:00,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:30:00,744 INFO L470 AbstractCegarLoop]: Abstraction has 404 states and 520 transitions. [2021-12-06 23:30:00,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:30:00,744 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 520 transitions. [2021-12-06 23:30:00,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-12-06 23:30:00,745 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:30:00,745 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:30:00,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-12-06 23:30:00,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:30:00,946 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:30:00,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:30:00,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1380761519, now seen corresponding path program 1 times [2021-12-06 23:30:00,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:30:00,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1659491942] [2021-12-06 23:30:00,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:30:00,950 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:30:00,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:30:00,952 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:30:00,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-12-06 23:30:01,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:30:01,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 23:30:01,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:30:01,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:30:01,138 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:30:01,139 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:30:01,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1659491942] [2021-12-06 23:30:01,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1659491942] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:30:01,139 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:30:01,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 23:30:01,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025143419] [2021-12-06 23:30:01,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:30:01,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 23:30:01,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:30:01,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 23:30:01,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-06 23:30:01,140 INFO L87 Difference]: Start difference. First operand 404 states and 520 transitions. Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 7 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:30:01,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:30:01,306 INFO L93 Difference]: Finished difference Result 508 states and 667 transitions. [2021-12-06 23:30:01,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 23:30:01,306 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 7 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2021-12-06 23:30:01,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:30:01,308 INFO L225 Difference]: With dead ends: 508 [2021-12-06 23:30:01,308 INFO L226 Difference]: Without dead ends: 498 [2021-12-06 23:30:01,309 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-12-06 23:30:01,309 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 187 mSDsluCounter, 1233 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:30:01,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 1535 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:30:01,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2021-12-06 23:30:01,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 410. [2021-12-06 23:30:01,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 361 states have (on average 1.260387811634349) internal successors, (455), 368 states have internal predecessors, (455), 33 states have call successors, (33), 15 states have call predecessors, (33), 15 states have return successors, (42), 27 states have call predecessors, (42), 27 states have call successors, (42) [2021-12-06 23:30:01,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 530 transitions. [2021-12-06 23:30:01,319 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 530 transitions. Word has length 43 [2021-12-06 23:30:01,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:30:01,320 INFO L470 AbstractCegarLoop]: Abstraction has 410 states and 530 transitions. [2021-12-06 23:30:01,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 7 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:30:01,320 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 530 transitions. [2021-12-06 23:30:01,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-12-06 23:30:01,321 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:30:01,321 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:30:01,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-12-06 23:30:01,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:30:01,522 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:30:01,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:30:01,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1017261290, now seen corresponding path program 1 times [2021-12-06 23:30:01,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:30:01,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [769937994] [2021-12-06 23:30:01,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:30:01,525 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:30:01,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:30:01,528 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:30:01,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-12-06 23:30:01,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:30:01,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 23:30:01,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:30:01,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:30:01,652 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:30:01,652 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:30:01,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [769937994] [2021-12-06 23:30:01,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [769937994] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:30:01,652 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:30:01,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 23:30:01,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710845219] [2021-12-06 23:30:01,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:30:01,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 23:30:01,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:30:01,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 23:30:01,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 23:30:01,653 INFO L87 Difference]: Start difference. First operand 410 states and 530 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:30:01,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:30:01,672 INFO L93 Difference]: Finished difference Result 407 states and 524 transitions. [2021-12-06 23:30:01,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 23:30:01,672 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2021-12-06 23:30:01,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:30:01,674 INFO L225 Difference]: With dead ends: 407 [2021-12-06 23:30:01,674 INFO L226 Difference]: Without dead ends: 407 [2021-12-06 23:30:01,674 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:30:01,675 INFO L933 BasicCegarLoop]: 298 mSDtfsCounter, 75 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:30:01,675 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 860 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:30:01,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2021-12-06 23:30:01,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 391. [2021-12-06 23:30:01,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 344 states have (on average 1.2616279069767442) internal successors, (434), 351 states have internal predecessors, (434), 32 states have call successors, (32), 14 states have call predecessors, (32), 14 states have return successors, (41), 26 states have call predecessors, (41), 26 states have call successors, (41) [2021-12-06 23:30:01,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 507 transitions. [2021-12-06 23:30:01,682 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 507 transitions. Word has length 43 [2021-12-06 23:30:01,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:30:01,682 INFO L470 AbstractCegarLoop]: Abstraction has 391 states and 507 transitions. [2021-12-06 23:30:01,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:30:01,682 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 507 transitions. [2021-12-06 23:30:01,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-06 23:30:01,683 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:30:01,683 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:30:01,690 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (25)] Ended with exit code 0 [2021-12-06 23:30:01,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:30:01,884 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:30:01,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:30:01,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1300540979, now seen corresponding path program 1 times [2021-12-06 23:30:01,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:30:01,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1555927517] [2021-12-06 23:30:01,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:30:01,887 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:30:01,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:30:01,889 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:30:01,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-12-06 23:30:02,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:30:02,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 23:30:02,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:30:02,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:30:02,079 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:30:02,079 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:30:02,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1555927517] [2021-12-06 23:30:02,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1555927517] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:30:02,079 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:30:02,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 23:30:02,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449062976] [2021-12-06 23:30:02,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:30:02,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:30:02,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:30:02,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:30:02,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:30:02,080 INFO L87 Difference]: Start difference. First operand 391 states and 507 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:30:02,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:30:02,088 INFO L93 Difference]: Finished difference Result 409 states and 533 transitions. [2021-12-06 23:30:02,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:30:02,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2021-12-06 23:30:02,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:30:02,090 INFO L225 Difference]: With dead ends: 409 [2021-12-06 23:30:02,090 INFO L226 Difference]: Without dead ends: 409 [2021-12-06 23:30:02,090 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:30:02,091 INFO L933 BasicCegarLoop]: 300 mSDtfsCounter, 5 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:30:02,091 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 588 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:30:02,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2021-12-06 23:30:02,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 391. [2021-12-06 23:30:02,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 344 states have (on average 1.2616279069767442) internal successors, (434), 351 states have internal predecessors, (434), 32 states have call successors, (32), 14 states have call predecessors, (32), 14 states have return successors, (41), 26 states have call predecessors, (41), 26 states have call successors, (41) [2021-12-06 23:30:02,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 507 transitions. [2021-12-06 23:30:02,100 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 507 transitions. Word has length 45 [2021-12-06 23:30:02,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:30:02,100 INFO L470 AbstractCegarLoop]: Abstraction has 391 states and 507 transitions. [2021-12-06 23:30:02,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:30:02,100 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 507 transitions. [2021-12-06 23:30:02,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-06 23:30:02,101 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:30:02,101 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:30:02,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-12-06 23:30:02,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:30:02,303 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:30:02,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:30:02,304 INFO L85 PathProgramCache]: Analyzing trace with hash 385010061, now seen corresponding path program 1 times [2021-12-06 23:30:02,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:30:02,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1141790095] [2021-12-06 23:30:02,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:30:02,306 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:30:02,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:30:02,308 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:30:02,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-12-06 23:30:02,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:30:02,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 23:30:02,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:30:02,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:30:02,539 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:30:02,539 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:30:02,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1141790095] [2021-12-06 23:30:02,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1141790095] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:30:02,539 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:30:02,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 23:30:02,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943257624] [2021-12-06 23:30:02,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:30:02,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 23:30:02,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:30:02,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 23:30:02,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 23:30:02,540 INFO L87 Difference]: Start difference. First operand 391 states and 507 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:30:02,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:30:02,631 INFO L93 Difference]: Finished difference Result 384 states and 494 transitions. [2021-12-06 23:30:02,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 23:30:02,631 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2021-12-06 23:30:02,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:30:02,633 INFO L225 Difference]: With dead ends: 384 [2021-12-06 23:30:02,633 INFO L226 Difference]: Without dead ends: 384 [2021-12-06 23:30:02,633 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 23:30:02,633 INFO L933 BasicCegarLoop]: 367 mSDtfsCounter, 341 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:30:02,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [341 Valid, 577 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:30:02,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2021-12-06 23:30:02,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 382. [2021-12-06 23:30:02,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 336 states have (on average 1.2589285714285714) internal successors, (423), 345 states have internal predecessors, (423), 32 states have call successors, (32), 14 states have call predecessors, (32), 13 states have return successors, (38), 23 states have call predecessors, (38), 26 states have call successors, (38) [2021-12-06 23:30:02,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 493 transitions. [2021-12-06 23:30:02,639 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 493 transitions. Word has length 45 [2021-12-06 23:30:02,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:30:02,639 INFO L470 AbstractCegarLoop]: Abstraction has 382 states and 493 transitions. [2021-12-06 23:30:02,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:30:02,639 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 493 transitions. [2021-12-06 23:30:02,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-12-06 23:30:02,640 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:30:02,640 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:30:02,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2021-12-06 23:30:02,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:30:02,842 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:30:02,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:30:02,843 INFO L85 PathProgramCache]: Analyzing trace with hash 2052927212, now seen corresponding path program 1 times [2021-12-06 23:30:02,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:30:02,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1265304846] [2021-12-06 23:30:02,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:30:02,845 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:30:02,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:30:02,847 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:30:02,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-12-06 23:30:02,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:30:02,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 23:30:02,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:30:03,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:30:03,019 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:30:03,019 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:30:03,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1265304846] [2021-12-06 23:30:03,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1265304846] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:30:03,019 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:30:03,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 23:30:03,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112815797] [2021-12-06 23:30:03,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:30:03,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 23:30:03,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:30:03,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 23:30:03,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-06 23:30:03,020 INFO L87 Difference]: Start difference. First operand 382 states and 493 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:30:03,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:30:03,107 INFO L93 Difference]: Finished difference Result 410 states and 528 transitions. [2021-12-06 23:30:03,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 23:30:03,107 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2021-12-06 23:30:03,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:30:03,109 INFO L225 Difference]: With dead ends: 410 [2021-12-06 23:30:03,109 INFO L226 Difference]: Without dead ends: 400 [2021-12-06 23:30:03,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:30:03,110 INFO L933 BasicCegarLoop]: 297 mSDtfsCounter, 15 mSDsluCounter, 1402 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 1699 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:30:03,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 1699 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:30:03,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2021-12-06 23:30:03,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 382. [2021-12-06 23:30:03,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 336 states have (on average 1.2589285714285714) internal successors, (423), 345 states have internal predecessors, (423), 32 states have call successors, (32), 14 states have call predecessors, (32), 13 states have return successors, (38), 23 states have call predecessors, (38), 26 states have call successors, (38) [2021-12-06 23:30:03,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 493 transitions. [2021-12-06 23:30:03,116 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 493 transitions. Word has length 44 [2021-12-06 23:30:03,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:30:03,116 INFO L470 AbstractCegarLoop]: Abstraction has 382 states and 493 transitions. [2021-12-06 23:30:03,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:30:03,116 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 493 transitions. [2021-12-06 23:30:03,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-12-06 23:30:03,117 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:30:03,117 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:30:03,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-12-06 23:30:03,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:30:03,318 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:30:03,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:30:03,320 INFO L85 PathProgramCache]: Analyzing trace with hash -453664980, now seen corresponding path program 1 times [2021-12-06 23:30:03,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:30:03,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [181799041] [2021-12-06 23:30:03,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:30:03,321 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:30:03,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:30:03,324 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:30:03,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-12-06 23:30:03,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:30:03,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 23:30:03,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:30:03,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:30:03,617 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:30:03,617 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:30:03,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [181799041] [2021-12-06 23:30:03,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [181799041] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:30:03,617 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:30:03,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 23:30:03,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793899943] [2021-12-06 23:30:03,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:30:03,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 23:30:03,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:30:03,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 23:30:03,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-06 23:30:03,618 INFO L87 Difference]: Start difference. First operand 382 states and 493 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:30:03,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:30:03,703 INFO L93 Difference]: Finished difference Result 397 states and 506 transitions. [2021-12-06 23:30:03,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 23:30:03,703 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2021-12-06 23:30:03,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:30:03,704 INFO L225 Difference]: With dead ends: 397 [2021-12-06 23:30:03,705 INFO L226 Difference]: Without dead ends: 384 [2021-12-06 23:30:03,705 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-12-06 23:30:03,705 INFO L933 BasicCegarLoop]: 296 mSDtfsCounter, 15 mSDsluCounter, 1401 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 1697 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:30:03,705 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 1697 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:30:03,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2021-12-06 23:30:03,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 372. [2021-12-06 23:30:03,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 328 states have (on average 1.2591463414634145) internal successors, (413), 336 states have internal predecessors, (413), 31 states have call successors, (31), 14 states have call predecessors, (31), 12 states have return successors, (32), 22 states have call predecessors, (32), 25 states have call successors, (32) [2021-12-06 23:30:03,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 476 transitions. [2021-12-06 23:30:03,711 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 476 transitions. Word has length 44 [2021-12-06 23:30:03,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:30:03,711 INFO L470 AbstractCegarLoop]: Abstraction has 372 states and 476 transitions. [2021-12-06 23:30:03,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:30:03,711 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 476 transitions. [2021-12-06 23:30:03,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-12-06 23:30:03,712 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:30:03,713 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:30:03,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2021-12-06 23:30:03,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:30:03,914 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:30:03,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:30:03,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1187697777, now seen corresponding path program 1 times [2021-12-06 23:30:03,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:30:03,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [617742132] [2021-12-06 23:30:03,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:30:03,917 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:30:03,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:30:03,919 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:30:03,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-12-06 23:30:03,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:30:04,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 23:30:04,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:30:04,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:30:04,049 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:30:04,049 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:30:04,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [617742132] [2021-12-06 23:30:04,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [617742132] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:30:04,049 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:30:04,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 23:30:04,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955183856] [2021-12-06 23:30:04,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:30:04,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:30:04,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:30:04,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:30:04,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:30:04,051 INFO L87 Difference]: Start difference. First operand 372 states and 476 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:30:04,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:30:04,061 INFO L93 Difference]: Finished difference Result 447 states and 567 transitions. [2021-12-06 23:30:04,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:30:04,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 46 [2021-12-06 23:30:04,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:30:04,063 INFO L225 Difference]: With dead ends: 447 [2021-12-06 23:30:04,063 INFO L226 Difference]: Without dead ends: 447 [2021-12-06 23:30:04,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:30:04,064 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 121 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:30:04,064 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 562 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:30:04,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2021-12-06 23:30:04,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 419. [2021-12-06 23:30:04,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 371 states have (on average 1.2641509433962264) internal successors, (469), 377 states have internal predecessors, (469), 33 states have call successors, (33), 16 states have call predecessors, (33), 14 states have return successors, (32), 26 states have call predecessors, (32), 28 states have call successors, (32) [2021-12-06 23:30:04,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 534 transitions. [2021-12-06 23:30:04,071 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 534 transitions. Word has length 46 [2021-12-06 23:30:04,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:30:04,071 INFO L470 AbstractCegarLoop]: Abstraction has 419 states and 534 transitions. [2021-12-06 23:30:04,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:30:04,072 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 534 transitions. [2021-12-06 23:30:04,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-12-06 23:30:04,072 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:30:04,072 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:30:04,080 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (30)] Ended with exit code 0 [2021-12-06 23:30:04,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:30:04,273 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:30:04,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:30:04,273 INFO L85 PathProgramCache]: Analyzing trace with hash -448653222, now seen corresponding path program 1 times [2021-12-06 23:30:04,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:30:04,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1344517103] [2021-12-06 23:30:04,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:30:04,274 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:30:04,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:30:04,275 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:30:04,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-12-06 23:30:04,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:30:04,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 23:30:04,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:30:04,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:30:04,384 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:30:04,384 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:30:04,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1344517103] [2021-12-06 23:30:04,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1344517103] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:30:04,384 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:30:04,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:30:04,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571721556] [2021-12-06 23:30:04,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:30:04,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:30:04,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:30:04,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:30:04,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:30:04,385 INFO L87 Difference]: Start difference. First operand 419 states and 534 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:30:04,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:30:04,407 INFO L93 Difference]: Finished difference Result 446 states and 565 transitions. [2021-12-06 23:30:04,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 23:30:04,408 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2021-12-06 23:30:04,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:30:04,409 INFO L225 Difference]: With dead ends: 446 [2021-12-06 23:30:04,410 INFO L226 Difference]: Without dead ends: 446 [2021-12-06 23:30:04,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:30:04,410 INFO L933 BasicCegarLoop]: 309 mSDtfsCounter, 23 mSDsluCounter, 1197 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 1506 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:30:04,410 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 1506 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:30:04,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2021-12-06 23:30:04,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 417. [2021-12-06 23:30:04,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 370 states have (on average 1.2621621621621621) internal successors, (467), 375 states have internal predecessors, (467), 32 states have call successors, (32), 16 states have call predecessors, (32), 14 states have return successors, (31), 26 states have call predecessors, (31), 27 states have call successors, (31) [2021-12-06 23:30:04,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 530 transitions. [2021-12-06 23:30:04,416 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 530 transitions. Word has length 48 [2021-12-06 23:30:04,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:30:04,416 INFO L470 AbstractCegarLoop]: Abstraction has 417 states and 530 transitions. [2021-12-06 23:30:04,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:30:04,416 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 530 transitions. [2021-12-06 23:30:04,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-12-06 23:30:04,417 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:30:04,417 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:30:04,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2021-12-06 23:30:04,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:30:04,619 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:30:04,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:30:04,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1621808983, now seen corresponding path program 1 times [2021-12-06 23:30:04,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:30:04,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1817293150] [2021-12-06 23:30:04,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:30:04,622 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:30:04,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:30:04,624 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:30:04,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2021-12-06 23:30:04,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:30:04,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 23:30:04,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:30:04,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:30:04,811 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:30:04,812 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:30:04,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1817293150] [2021-12-06 23:30:04,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1817293150] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:30:04,812 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:30:04,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 23:30:04,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869056846] [2021-12-06 23:30:04,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:30:04,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 23:30:04,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:30:04,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 23:30:04,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-06 23:30:04,813 INFO L87 Difference]: Start difference. First operand 417 states and 530 transitions. Second operand has 9 states, 9 states have (on average 5.0) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:30:05,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:30:05,030 INFO L93 Difference]: Finished difference Result 526 states and 679 transitions. [2021-12-06 23:30:05,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 23:30:05,030 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2021-12-06 23:30:05,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:30:05,032 INFO L225 Difference]: With dead ends: 526 [2021-12-06 23:30:05,032 INFO L226 Difference]: Without dead ends: 513 [2021-12-06 23:30:05,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-12-06 23:30:05,033 INFO L933 BasicCegarLoop]: 284 mSDtfsCounter, 320 mSDsluCounter, 1579 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 1863 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 23:30:05,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [324 Valid, 1863 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 23:30:05,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2021-12-06 23:30:05,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 423. [2021-12-06 23:30:05,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 375 states have (on average 1.2586666666666666) internal successors, (472), 381 states have internal predecessors, (472), 32 states have call successors, (32), 16 states have call predecessors, (32), 15 states have return successors, (35), 26 states have call predecessors, (35), 27 states have call successors, (35) [2021-12-06 23:30:05,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 539 transitions. [2021-12-06 23:30:05,038 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 539 transitions. Word has length 48 [2021-12-06 23:30:05,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:30:05,039 INFO L470 AbstractCegarLoop]: Abstraction has 423 states and 539 transitions. [2021-12-06 23:30:05,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:30:05,039 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 539 transitions. [2021-12-06 23:30:05,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-12-06 23:30:05,040 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:30:05,040 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:30:05,050 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (32)] Ended with exit code 0 [2021-12-06 23:30:05,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:30:05,241 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:30:05,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:30:05,242 INFO L85 PathProgramCache]: Analyzing trace with hash -394165188, now seen corresponding path program 1 times [2021-12-06 23:30:05,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:30:05,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [521783255] [2021-12-06 23:30:05,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:30:05,244 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:30:05,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:30:05,246 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:30:05,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2021-12-06 23:30:05,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:30:05,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 23:30:05,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:30:05,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:30:05,434 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:30:05,435 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:30:05,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [521783255] [2021-12-06 23:30:05,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [521783255] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:30:05,435 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:30:05,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 23:30:05,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649913750] [2021-12-06 23:30:05,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:30:05,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 23:30:05,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:30:05,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 23:30:05,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-06 23:30:05,436 INFO L87 Difference]: Start difference. First operand 423 states and 539 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:30:05,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:30:05,561 INFO L93 Difference]: Finished difference Result 454 states and 577 transitions. [2021-12-06 23:30:05,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 23:30:05,561 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2021-12-06 23:30:05,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:30:05,563 INFO L225 Difference]: With dead ends: 454 [2021-12-06 23:30:05,563 INFO L226 Difference]: Without dead ends: 441 [2021-12-06 23:30:05,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-12-06 23:30:05,564 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 22 mSDsluCounter, 1875 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2161 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:30:05,564 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 2161 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:30:05,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2021-12-06 23:30:05,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 423. [2021-12-06 23:30:05,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 375 states have (on average 1.2586666666666666) internal successors, (472), 381 states have internal predecessors, (472), 32 states have call successors, (32), 16 states have call predecessors, (32), 15 states have return successors, (35), 26 states have call predecessors, (35), 27 states have call successors, (35) [2021-12-06 23:30:05,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 539 transitions. [2021-12-06 23:30:05,569 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 539 transitions. Word has length 49 [2021-12-06 23:30:05,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:30:05,570 INFO L470 AbstractCegarLoop]: Abstraction has 423 states and 539 transitions. [2021-12-06 23:30:05,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:30:05,570 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 539 transitions. [2021-12-06 23:30:05,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-12-06 23:30:05,570 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:30:05,571 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:30:05,577 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (33)] Ended with exit code 0 [2021-12-06 23:30:05,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:30:05,772 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:30:05,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:30:05,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1980748804, now seen corresponding path program 1 times [2021-12-06 23:30:05,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:30:05,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [624844450] [2021-12-06 23:30:05,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:30:05,775 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:30:05,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:30:05,777 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:30:05,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2021-12-06 23:30:05,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:30:05,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 23:30:05,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:30:06,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:30:06,038 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:30:06,038 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:30:06,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [624844450] [2021-12-06 23:30:06,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [624844450] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:30:06,039 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:30:06,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 23:30:06,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975195186] [2021-12-06 23:30:06,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:30:06,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 23:30:06,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:30:06,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 23:30:06,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-06 23:30:06,040 INFO L87 Difference]: Start difference. First operand 423 states and 539 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:30:06,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:30:06,156 INFO L93 Difference]: Finished difference Result 441 states and 557 transitions. [2021-12-06 23:30:06,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 23:30:06,156 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2021-12-06 23:30:06,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:30:06,158 INFO L225 Difference]: With dead ends: 441 [2021-12-06 23:30:06,158 INFO L226 Difference]: Without dead ends: 425 [2021-12-06 23:30:06,159 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-12-06 23:30:06,159 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 22 mSDsluCounter, 1874 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2159 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:30:06,159 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 2159 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:30:06,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2021-12-06 23:30:06,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 413. [2021-12-06 23:30:06,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 367 states have (on average 1.2615803814713897) internal successors, (463), 372 states have internal predecessors, (463), 31 states have call successors, (31), 16 states have call predecessors, (31), 14 states have return successors, (30), 25 states have call predecessors, (30), 26 states have call successors, (30) [2021-12-06 23:30:06,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 524 transitions. [2021-12-06 23:30:06,164 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 524 transitions. Word has length 49 [2021-12-06 23:30:06,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:30:06,164 INFO L470 AbstractCegarLoop]: Abstraction has 413 states and 524 transitions. [2021-12-06 23:30:06,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:30:06,165 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 524 transitions. [2021-12-06 23:30:06,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-12-06 23:30:06,165 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:30:06,165 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:30:06,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2021-12-06 23:30:06,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:30:06,366 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:30:06,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:30:06,367 INFO L85 PathProgramCache]: Analyzing trace with hash 2037628605, now seen corresponding path program 1 times [2021-12-06 23:30:06,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:30:06,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [137688681] [2021-12-06 23:30:06,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:30:06,369 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:30:06,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:30:06,371 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:30:06,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2021-12-06 23:30:06,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:30:06,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 23:30:06,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:30:06,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:30:06,682 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:30:06,683 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:30:06,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [137688681] [2021-12-06 23:30:06,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [137688681] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:30:06,683 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:30:06,683 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 23:30:06,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217120981] [2021-12-06 23:30:06,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:30:06,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 23:30:06,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:30:06,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 23:30:06,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-06 23:30:06,684 INFO L87 Difference]: Start difference. First operand 413 states and 524 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:30:06,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:30:06,885 INFO L93 Difference]: Finished difference Result 521 states and 671 transitions. [2021-12-06 23:30:06,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 23:30:06,886 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2021-12-06 23:30:06,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:30:06,888 INFO L225 Difference]: With dead ends: 521 [2021-12-06 23:30:06,888 INFO L226 Difference]: Without dead ends: 508 [2021-12-06 23:30:06,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-12-06 23:30:06,888 INFO L933 BasicCegarLoop]: 290 mSDtfsCounter, 309 mSDsluCounter, 1603 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 1893 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 23:30:06,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [313 Valid, 1893 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 23:30:06,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2021-12-06 23:30:06,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 419. [2021-12-06 23:30:06,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 372 states have (on average 1.2580645161290323) internal successors, (468), 378 states have internal predecessors, (468), 31 states have call successors, (31), 16 states have call predecessors, (31), 15 states have return successors, (33), 25 states have call predecessors, (33), 26 states have call successors, (33) [2021-12-06 23:30:06,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 532 transitions. [2021-12-06 23:30:06,894 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 532 transitions. Word has length 49 [2021-12-06 23:30:06,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:30:06,894 INFO L470 AbstractCegarLoop]: Abstraction has 419 states and 532 transitions. [2021-12-06 23:30:06,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:30:06,895 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 532 transitions. [2021-12-06 23:30:06,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-12-06 23:30:06,895 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:30:06,895 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:30:06,902 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (35)] Ended with exit code 0 [2021-12-06 23:30:07,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:30:07,097 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:30:07,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:30:07,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1318636408, now seen corresponding path program 1 times [2021-12-06 23:30:07,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:30:07,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1543264949] [2021-12-06 23:30:07,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:30:07,099 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:30:07,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:30:07,102 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:30:07,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2021-12-06 23:30:07,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:30:07,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 23:30:07,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:30:07,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:30:07,273 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:30:07,273 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:30:07,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1543264949] [2021-12-06 23:30:07,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1543264949] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:30:07,273 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:30:07,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 23:30:07,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341913710] [2021-12-06 23:30:07,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:30:07,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 23:30:07,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:30:07,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 23:30:07,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-06 23:30:07,274 INFO L87 Difference]: Start difference. First operand 419 states and 532 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:30:07,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:30:07,467 INFO L93 Difference]: Finished difference Result 520 states and 669 transitions. [2021-12-06 23:30:07,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 23:30:07,468 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2021-12-06 23:30:07,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:30:07,470 INFO L225 Difference]: With dead ends: 520 [2021-12-06 23:30:07,470 INFO L226 Difference]: Without dead ends: 507 [2021-12-06 23:30:07,470 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-12-06 23:30:07,470 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 315 mSDsluCounter, 1324 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 1602 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 23:30:07,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [319 Valid, 1602 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 23:30:07,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2021-12-06 23:30:07,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 419. [2021-12-06 23:30:07,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 372 states have (on average 1.2580645161290323) internal successors, (468), 378 states have internal predecessors, (468), 31 states have call successors, (31), 16 states have call predecessors, (31), 15 states have return successors, (32), 25 states have call predecessors, (32), 26 states have call successors, (32) [2021-12-06 23:30:07,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 531 transitions. [2021-12-06 23:30:07,476 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 531 transitions. Word has length 49 [2021-12-06 23:30:07,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:30:07,476 INFO L470 AbstractCegarLoop]: Abstraction has 419 states and 531 transitions. [2021-12-06 23:30:07,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:30:07,476 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 531 transitions. [2021-12-06 23:30:07,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-12-06 23:30:07,477 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:30:07,477 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:30:07,484 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (36)] Ended with exit code 0 [2021-12-06 23:30:07,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:30:07,678 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:30:07,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:30:07,679 INFO L85 PathProgramCache]: Analyzing trace with hash 2007550124, now seen corresponding path program 1 times [2021-12-06 23:30:07,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:30:07,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1721081591] [2021-12-06 23:30:07,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:30:07,680 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:30:07,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:30:07,682 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:30:07,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2021-12-06 23:30:07,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:30:07,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 23:30:07,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:30:07,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:30:07,881 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:30:07,881 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:30:07,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1721081591] [2021-12-06 23:30:07,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1721081591] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:30:07,881 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:30:07,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:30:07,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285597507] [2021-12-06 23:30:07,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:30:07,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:30:07,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:30:07,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:30:07,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:30:07,882 INFO L87 Difference]: Start difference. First operand 419 states and 531 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:30:07,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:30:07,905 INFO L93 Difference]: Finished difference Result 536 states and 696 transitions. [2021-12-06 23:30:07,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 23:30:07,906 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2021-12-06 23:30:07,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:30:07,908 INFO L225 Difference]: With dead ends: 536 [2021-12-06 23:30:07,908 INFO L226 Difference]: Without dead ends: 536 [2021-12-06 23:30:07,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:30:07,908 INFO L933 BasicCegarLoop]: 359 mSDtfsCounter, 73 mSDsluCounter, 1341 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 1700 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:30:07,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 1700 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:30:07,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2021-12-06 23:30:07,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 405. [2021-12-06 23:30:07,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 360 states have (on average 1.2555555555555555) internal successors, (452), 365 states have internal predecessors, (452), 29 states have call successors, (29), 15 states have call predecessors, (29), 15 states have return successors, (30), 25 states have call predecessors, (30), 25 states have call successors, (30) [2021-12-06 23:30:07,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 511 transitions. [2021-12-06 23:30:07,914 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 511 transitions. Word has length 51 [2021-12-06 23:30:07,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:30:07,914 INFO L470 AbstractCegarLoop]: Abstraction has 405 states and 511 transitions. [2021-12-06 23:30:07,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:30:07,915 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 511 transitions. [2021-12-06 23:30:07,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-12-06 23:30:07,915 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:30:07,915 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:30:07,922 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (37)] Ended with exit code 0 [2021-12-06 23:30:08,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:30:08,117 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:30:08,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:30:08,118 INFO L85 PathProgramCache]: Analyzing trace with hash -2102580610, now seen corresponding path program 1 times [2021-12-06 23:30:08,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:30:08,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [280950139] [2021-12-06 23:30:08,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:30:08,120 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:30:08,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:30:08,122 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:30:08,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2021-12-06 23:30:08,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:30:08,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 23:30:08,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:30:08,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:30:08,300 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:30:08,300 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:30:08,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [280950139] [2021-12-06 23:30:08,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [280950139] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:30:08,300 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:30:08,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 23:30:08,300 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701689464] [2021-12-06 23:30:08,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:30:08,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 23:30:08,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:30:08,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 23:30:08,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-06 23:30:08,302 INFO L87 Difference]: Start difference. First operand 405 states and 511 transitions. Second operand has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:30:08,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:30:08,421 INFO L93 Difference]: Finished difference Result 436 states and 547 transitions. [2021-12-06 23:30:08,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 23:30:08,421 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2021-12-06 23:30:08,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:30:08,423 INFO L225 Difference]: With dead ends: 436 [2021-12-06 23:30:08,423 INFO L226 Difference]: Without dead ends: 423 [2021-12-06 23:30:08,423 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-12-06 23:30:08,423 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 22 mSDsluCounter, 1812 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2088 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:30:08,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 2088 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:30:08,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2021-12-06 23:30:08,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 411. [2021-12-06 23:30:08,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 365 states have (on average 1.252054794520548) internal successors, (457), 371 states have internal predecessors, (457), 29 states have call successors, (29), 15 states have call predecessors, (29), 16 states have return successors, (33), 25 states have call predecessors, (33), 25 states have call successors, (33) [2021-12-06 23:30:08,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 519 transitions. [2021-12-06 23:30:08,429 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 519 transitions. Word has length 50 [2021-12-06 23:30:08,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:30:08,429 INFO L470 AbstractCegarLoop]: Abstraction has 411 states and 519 transitions. [2021-12-06 23:30:08,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:30:08,430 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 519 transitions. [2021-12-06 23:30:08,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-12-06 23:30:08,430 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:30:08,431 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:30:08,437 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (38)] Ended with exit code 0 [2021-12-06 23:30:08,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:30:08,632 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:30:08,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:30:08,634 INFO L85 PathProgramCache]: Analyzing trace with hash 605803070, now seen corresponding path program 1 times [2021-12-06 23:30:08,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:30:08,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [47531258] [2021-12-06 23:30:08,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:30:08,636 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:30:08,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:30:08,638 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:30:08,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2021-12-06 23:30:08,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:30:08,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 23:30:08,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:30:08,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:30:08,813 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:30:08,813 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:30:08,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [47531258] [2021-12-06 23:30:08,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [47531258] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:30:08,813 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:30:08,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 23:30:08,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934331191] [2021-12-06 23:30:08,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:30:08,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 23:30:08,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:30:08,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 23:30:08,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-06 23:30:08,814 INFO L87 Difference]: Start difference. First operand 411 states and 519 transitions. Second operand has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:30:08,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:30:08,910 INFO L93 Difference]: Finished difference Result 429 states and 537 transitions. [2021-12-06 23:30:08,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 23:30:08,910 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2021-12-06 23:30:08,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:30:08,912 INFO L225 Difference]: With dead ends: 429 [2021-12-06 23:30:08,912 INFO L226 Difference]: Without dead ends: 412 [2021-12-06 23:30:08,912 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-12-06 23:30:08,913 INFO L933 BasicCegarLoop]: 288 mSDtfsCounter, 25 mSDsluCounter, 1608 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 1896 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:30:08,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 1896 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:30:08,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2021-12-06 23:30:08,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 400. [2021-12-06 23:30:08,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 356 states have (on average 1.2556179775280898) internal successors, (447), 361 states have internal predecessors, (447), 28 states have call successors, (28), 15 states have call predecessors, (28), 15 states have return successors, (29), 24 states have call predecessors, (29), 24 states have call successors, (29) [2021-12-06 23:30:08,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 504 transitions. [2021-12-06 23:30:08,918 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 504 transitions. Word has length 50 [2021-12-06 23:30:08,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:30:08,918 INFO L470 AbstractCegarLoop]: Abstraction has 400 states and 504 transitions. [2021-12-06 23:30:08,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:30:08,918 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 504 transitions. [2021-12-06 23:30:08,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-12-06 23:30:08,919 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:30:08,919 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:30:08,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2021-12-06 23:30:09,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:30:09,120 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:30:09,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:30:09,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1781151671, now seen corresponding path program 1 times [2021-12-06 23:30:09,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:30:09,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [288777424] [2021-12-06 23:30:09,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:30:09,124 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:30:09,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:30:09,126 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:30:09,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2021-12-06 23:30:09,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:30:09,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 23:30:09,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:30:09,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:30:09,344 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:30:09,344 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:30:09,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [288777424] [2021-12-06 23:30:09,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [288777424] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:30:09,344 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:30:09,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 23:30:09,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144909865] [2021-12-06 23:30:09,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:30:09,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 23:30:09,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:30:09,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 23:30:09,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-06 23:30:09,345 INFO L87 Difference]: Start difference. First operand 400 states and 504 transitions. Second operand has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:30:09,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:30:09,454 INFO L93 Difference]: Finished difference Result 431 states and 539 transitions. [2021-12-06 23:30:09,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 23:30:09,454 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2021-12-06 23:30:09,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:30:09,456 INFO L225 Difference]: With dead ends: 431 [2021-12-06 23:30:09,456 INFO L226 Difference]: Without dead ends: 418 [2021-12-06 23:30:09,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-12-06 23:30:09,457 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 22 mSDsluCounter, 1770 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2039 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:30:09,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 2039 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:30:09,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2021-12-06 23:30:09,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 400. [2021-12-06 23:30:09,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 356 states have (on average 1.2556179775280898) internal successors, (447), 361 states have internal predecessors, (447), 28 states have call successors, (28), 15 states have call predecessors, (28), 15 states have return successors, (29), 24 states have call predecessors, (29), 24 states have call successors, (29) [2021-12-06 23:30:09,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 504 transitions. [2021-12-06 23:30:09,462 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 504 transitions. Word has length 50 [2021-12-06 23:30:09,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:30:09,462 INFO L470 AbstractCegarLoop]: Abstraction has 400 states and 504 transitions. [2021-12-06 23:30:09,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:30:09,462 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 504 transitions. [2021-12-06 23:30:09,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-12-06 23:30:09,463 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:30:09,463 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:30:09,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2021-12-06 23:30:09,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:30:09,664 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:30:09,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:30:09,664 INFO L85 PathProgramCache]: Analyzing trace with hash 194568055, now seen corresponding path program 1 times [2021-12-06 23:30:09,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:30:09,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [348621802] [2021-12-06 23:30:09,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:30:09,665 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:30:09,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:30:09,666 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:30:09,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2021-12-06 23:30:09,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:30:09,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 23:30:09,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:30:09,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:30:09,814 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:30:09,814 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:30:09,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [348621802] [2021-12-06 23:30:09,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [348621802] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:30:09,814 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:30:09,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 23:30:09,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695076499] [2021-12-06 23:30:09,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:30:09,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 23:30:09,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:30:09,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 23:30:09,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-06 23:30:09,815 INFO L87 Difference]: Start difference. First operand 400 states and 504 transitions. Second operand has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:30:09,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:30:09,934 INFO L93 Difference]: Finished difference Result 418 states and 522 transitions. [2021-12-06 23:30:09,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 23:30:09,935 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2021-12-06 23:30:09,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:30:09,937 INFO L225 Difference]: With dead ends: 418 [2021-12-06 23:30:09,937 INFO L226 Difference]: Without dead ends: 402 [2021-12-06 23:30:09,937 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-12-06 23:30:09,938 INFO L933 BasicCegarLoop]: 268 mSDtfsCounter, 22 mSDsluCounter, 1769 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2037 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:30:09,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 2037 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:30:09,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2021-12-06 23:30:09,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 390. [2021-12-06 23:30:09,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 348 states have (on average 1.2586206896551724) internal successors, (438), 352 states have internal predecessors, (438), 27 states have call successors, (27), 15 states have call predecessors, (27), 14 states have return successors, (26), 23 states have call predecessors, (26), 23 states have call successors, (26) [2021-12-06 23:30:09,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 491 transitions. [2021-12-06 23:30:09,945 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 491 transitions. Word has length 50 [2021-12-06 23:30:09,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:30:09,945 INFO L470 AbstractCegarLoop]: Abstraction has 390 states and 491 transitions. [2021-12-06 23:30:09,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:30:09,945 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 491 transitions. [2021-12-06 23:30:09,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-12-06 23:30:09,946 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:30:09,946 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:30:09,953 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (41)] Ended with exit code 0 [2021-12-06 23:30:10,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:30:10,147 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:30:10,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:30:10,147 INFO L85 PathProgramCache]: Analyzing trace with hash 568629575, now seen corresponding path program 1 times [2021-12-06 23:30:10,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:30:10,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1249805950] [2021-12-06 23:30:10,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:30:10,148 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:30:10,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:30:10,148 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:30:10,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2021-12-06 23:30:10,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:30:10,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 23:30:10,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:30:10,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:30:10,298 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:30:10,298 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:30:10,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1249805950] [2021-12-06 23:30:10,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1249805950] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:30:10,298 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:30:10,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 23:30:10,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031433758] [2021-12-06 23:30:10,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:30:10,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 23:30:10,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:30:10,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 23:30:10,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-06 23:30:10,299 INFO L87 Difference]: Start difference. First operand 390 states and 491 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:30:10,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:30:10,493 INFO L93 Difference]: Finished difference Result 496 states and 633 transitions. [2021-12-06 23:30:10,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 23:30:10,493 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2021-12-06 23:30:10,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:30:10,495 INFO L225 Difference]: With dead ends: 496 [2021-12-06 23:30:10,495 INFO L226 Difference]: Without dead ends: 474 [2021-12-06 23:30:10,495 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-12-06 23:30:10,495 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 305 mSDsluCounter, 1491 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 1754 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 23:30:10,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [308 Valid, 1754 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 23:30:10,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2021-12-06 23:30:10,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 396. [2021-12-06 23:30:10,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 353 states have (on average 1.254957507082153) internal successors, (443), 358 states have internal predecessors, (443), 27 states have call successors, (27), 15 states have call predecessors, (27), 15 states have return successors, (27), 23 states have call predecessors, (27), 23 states have call successors, (27) [2021-12-06 23:30:10,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 497 transitions. [2021-12-06 23:30:10,501 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 497 transitions. Word has length 53 [2021-12-06 23:30:10,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:30:10,501 INFO L470 AbstractCegarLoop]: Abstraction has 396 states and 497 transitions. [2021-12-06 23:30:10,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:30:10,501 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 497 transitions. [2021-12-06 23:30:10,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-12-06 23:30:10,502 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:30:10,502 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:30:10,509 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (42)] Ended with exit code 0 [2021-12-06 23:30:10,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:30:10,703 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:30:10,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:30:10,704 INFO L85 PathProgramCache]: Analyzing trace with hash 300087504, now seen corresponding path program 1 times [2021-12-06 23:30:10,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:30:10,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [219012082] [2021-12-06 23:30:10,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:30:10,706 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:30:10,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:30:10,708 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:30:10,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2021-12-06 23:30:10,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:30:10,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 23:30:10,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:30:10,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:30:10,881 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:30:10,881 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:30:10,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [219012082] [2021-12-06 23:30:10,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [219012082] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:30:10,881 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:30:10,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 23:30:10,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040289125] [2021-12-06 23:30:10,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:30:10,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 23:30:10,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:30:10,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 23:30:10,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-06 23:30:10,882 INFO L87 Difference]: Start difference. First operand 396 states and 497 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:30:10,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:30:10,986 INFO L93 Difference]: Finished difference Result 436 states and 544 transitions. [2021-12-06 23:30:10,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 23:30:10,987 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 54 [2021-12-06 23:30:10,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:30:10,988 INFO L225 Difference]: With dead ends: 436 [2021-12-06 23:30:10,988 INFO L226 Difference]: Without dead ends: 414 [2021-12-06 23:30:10,989 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-12-06 23:30:10,989 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 30 mSDsluCounter, 1729 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 1993 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:30:10,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 1993 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:30:10,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2021-12-06 23:30:10,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 396. [2021-12-06 23:30:10,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 353 states have (on average 1.254957507082153) internal successors, (443), 358 states have internal predecessors, (443), 27 states have call successors, (27), 15 states have call predecessors, (27), 15 states have return successors, (27), 23 states have call predecessors, (27), 23 states have call successors, (27) [2021-12-06 23:30:10,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 497 transitions. [2021-12-06 23:30:10,994 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 497 transitions. Word has length 54 [2021-12-06 23:30:10,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:30:10,994 INFO L470 AbstractCegarLoop]: Abstraction has 396 states and 497 transitions. [2021-12-06 23:30:10,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:30:10,994 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 497 transitions. [2021-12-06 23:30:10,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-12-06 23:30:10,995 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:30:10,995 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:30:11,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2021-12-06 23:30:11,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:30:11,196 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:30:11,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:30:11,197 INFO L85 PathProgramCache]: Analyzing trace with hash 502675728, now seen corresponding path program 1 times [2021-12-06 23:30:11,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:30:11,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [949943395] [2021-12-06 23:30:11,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:30:11,199 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:30:11,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:30:11,201 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:30:11,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2021-12-06 23:30:11,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:30:11,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 23:30:11,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:30:11,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:30:11,359 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:30:11,359 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:30:11,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [949943395] [2021-12-06 23:30:11,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [949943395] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:30:11,360 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:30:11,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 23:30:11,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594502395] [2021-12-06 23:30:11,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:30:11,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 23:30:11,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:30:11,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 23:30:11,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-06 23:30:11,361 INFO L87 Difference]: Start difference. First operand 396 states and 497 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:30:11,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:30:11,452 INFO L93 Difference]: Finished difference Result 414 states and 515 transitions. [2021-12-06 23:30:11,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 23:30:11,453 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 54 [2021-12-06 23:30:11,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:30:11,454 INFO L225 Difference]: With dead ends: 414 [2021-12-06 23:30:11,454 INFO L226 Difference]: Without dead ends: 380 [2021-12-06 23:30:11,455 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-12-06 23:30:11,455 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 33 mSDsluCounter, 1466 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 1727 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:30:11,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 1727 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:30:11,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2021-12-06 23:30:11,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 368. [2021-12-06 23:30:11,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 329 states have (on average 1.2583586626139818) internal successors, (414), 333 states have internal predecessors, (414), 25 states have call successors, (25), 14 states have call predecessors, (25), 13 states have return successors, (24), 21 states have call predecessors, (24), 21 states have call successors, (24) [2021-12-06 23:30:11,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 463 transitions. [2021-12-06 23:30:11,460 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 463 transitions. Word has length 54 [2021-12-06 23:30:11,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:30:11,460 INFO L470 AbstractCegarLoop]: Abstraction has 368 states and 463 transitions. [2021-12-06 23:30:11,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:30:11,460 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 463 transitions. [2021-12-06 23:30:11,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-12-06 23:30:11,461 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:30:11,461 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:30:11,468 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (44)] Ended with exit code 0 [2021-12-06 23:30:11,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:30:11,662 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:30:11,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:30:11,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1974701816, now seen corresponding path program 1 times [2021-12-06 23:30:11,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:30:11,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [154292335] [2021-12-06 23:30:11,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:30:11,662 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:30:11,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:30:11,663 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:30:11,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2021-12-06 23:30:11,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:30:11,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 23:30:11,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:30:11,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:30:11,781 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:30:11,781 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:30:11,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [154292335] [2021-12-06 23:30:11,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [154292335] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:30:11,781 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:30:11,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 23:30:11,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206384716] [2021-12-06 23:30:11,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:30:11,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 23:30:11,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:30:11,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 23:30:11,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:30:11,782 INFO L87 Difference]: Start difference. First operand 368 states and 463 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 23:30:11,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:30:11,903 INFO L93 Difference]: Finished difference Result 481 states and 587 transitions. [2021-12-06 23:30:11,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 23:30:11,903 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 63 [2021-12-06 23:30:11,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:30:11,905 INFO L225 Difference]: With dead ends: 481 [2021-12-06 23:30:11,905 INFO L226 Difference]: Without dead ends: 481 [2021-12-06 23:30:11,905 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:30:11,906 INFO L933 BasicCegarLoop]: 292 mSDtfsCounter, 273 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 808 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:30:11,906 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [279 Valid, 808 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:30:11,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2021-12-06 23:30:11,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 462. [2021-12-06 23:30:11,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 413 states have (on average 1.2445520581113803) internal successors, (514), 419 states have internal predecessors, (514), 27 states have call successors, (27), 20 states have call predecessors, (27), 21 states have return successors, (27), 23 states have call predecessors, (27), 23 states have call successors, (27) [2021-12-06 23:30:11,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 568 transitions. [2021-12-06 23:30:11,912 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 568 transitions. Word has length 63 [2021-12-06 23:30:11,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:30:11,912 INFO L470 AbstractCegarLoop]: Abstraction has 462 states and 568 transitions. [2021-12-06 23:30:11,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 23:30:11,912 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 568 transitions. [2021-12-06 23:30:11,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-12-06 23:30:11,913 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:30:11,913 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:30:11,920 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (45)] Ended with exit code 0 [2021-12-06 23:30:12,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:30:12,113 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:30:12,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:30:12,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1711382279, now seen corresponding path program 1 times [2021-12-06 23:30:12,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:30:12,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1978143673] [2021-12-06 23:30:12,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:30:12,114 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:30:12,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:30:12,115 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:30:12,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2021-12-06 23:30:12,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:30:12,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-06 23:30:12,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:30:12,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:30:12,242 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:30:12,242 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:30:12,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1978143673] [2021-12-06 23:30:12,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1978143673] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:30:12,242 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:30:12,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 23:30:12,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671040281] [2021-12-06 23:30:12,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:30:12,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 23:30:12,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:30:12,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 23:30:12,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 23:30:12,243 INFO L87 Difference]: Start difference. First operand 462 states and 568 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 23:30:12,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:30:12,324 INFO L93 Difference]: Finished difference Result 506 states and 616 transitions. [2021-12-06 23:30:12,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 23:30:12,324 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 63 [2021-12-06 23:30:12,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:30:12,326 INFO L225 Difference]: With dead ends: 506 [2021-12-06 23:30:12,326 INFO L226 Difference]: Without dead ends: 490 [2021-12-06 23:30:12,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-12-06 23:30:12,326 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 281 mSDsluCounter, 1131 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 1373 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:30:12,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [286 Valid, 1373 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 23:30:12,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2021-12-06 23:30:12,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 470. [2021-12-06 23:30:12,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 420 states have (on average 1.2404761904761905) internal successors, (521), 426 states have internal predecessors, (521), 27 states have call successors, (27), 20 states have call predecessors, (27), 22 states have return successors, (29), 24 states have call predecessors, (29), 23 states have call successors, (29) [2021-12-06 23:30:12,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 577 transitions. [2021-12-06 23:30:12,332 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 577 transitions. Word has length 63 [2021-12-06 23:30:12,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:30:12,332 INFO L470 AbstractCegarLoop]: Abstraction has 470 states and 577 transitions. [2021-12-06 23:30:12,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 23:30:12,332 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 577 transitions. [2021-12-06 23:30:12,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-12-06 23:30:12,333 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:30:12,333 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:30:12,340 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (46)] Ended with exit code 0 [2021-12-06 23:30:12,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:30:12,534 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:30:12,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:30:12,534 INFO L85 PathProgramCache]: Analyzing trace with hash -259200957, now seen corresponding path program 1 times [2021-12-06 23:30:12,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:30:12,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [889017774] [2021-12-06 23:30:12,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:30:12,535 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:30:12,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:30:12,536 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:30:12,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2021-12-06 23:30:12,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:30:12,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 23:30:12,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:30:12,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:30:12,688 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:30:12,689 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:30:12,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [889017774] [2021-12-06 23:30:12,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [889017774] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:30:12,689 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:30:12,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 23:30:12,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599752074] [2021-12-06 23:30:12,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:30:12,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:30:12,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:30:12,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:30:12,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:30:12,690 INFO L87 Difference]: Start difference. First operand 470 states and 577 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 23:30:12,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:30:12,702 INFO L93 Difference]: Finished difference Result 472 states and 575 transitions. [2021-12-06 23:30:12,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:30:12,703 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 64 [2021-12-06 23:30:12,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:30:12,705 INFO L225 Difference]: With dead ends: 472 [2021-12-06 23:30:12,705 INFO L226 Difference]: Without dead ends: 472 [2021-12-06 23:30:12,705 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:30:12,706 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 20 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:30:12,706 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 469 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:30:12,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2021-12-06 23:30:12,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 470. [2021-12-06 23:30:12,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 420 states have (on average 1.2333333333333334) internal successors, (518), 426 states have internal predecessors, (518), 27 states have call successors, (27), 20 states have call predecessors, (27), 22 states have return successors, (29), 24 states have call predecessors, (29), 23 states have call successors, (29) [2021-12-06 23:30:12,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 574 transitions. [2021-12-06 23:30:12,712 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 574 transitions. Word has length 64 [2021-12-06 23:30:12,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:30:12,712 INFO L470 AbstractCegarLoop]: Abstraction has 470 states and 574 transitions. [2021-12-06 23:30:12,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 23:30:12,712 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 574 transitions. [2021-12-06 23:30:12,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-12-06 23:30:12,713 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:30:12,713 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:30:12,720 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (47)] Ended with exit code 0 [2021-12-06 23:30:12,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:30:12,914 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:30:12,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:30:12,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1980841952, now seen corresponding path program 1 times [2021-12-06 23:30:12,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:30:12,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1255648475] [2021-12-06 23:30:12,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:30:12,917 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:30:12,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:30:12,919 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:30:12,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2021-12-06 23:30:13,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:30:13,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-06 23:30:13,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 23:30:13,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:30:13,099 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 23:30:13,099 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 23:30:13,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1255648475] [2021-12-06 23:30:13,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1255648475] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:30:13,100 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:30:13,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 23:30:13,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284602266] [2021-12-06 23:30:13,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:30:13,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 23:30:13,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 23:30:13,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 23:30:13,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 23:30:13,100 INFO L87 Difference]: Start difference. First operand 470 states and 574 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 7 states have internal predecessors, (59), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 23:30:13,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:30:13,161 INFO L93 Difference]: Finished difference Result 506 states and 612 transitions. [2021-12-06 23:30:13,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 23:30:13,161 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 7 states have internal predecessors, (59), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 64 [2021-12-06 23:30:13,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:30:13,163 INFO L225 Difference]: With dead ends: 506 [2021-12-06 23:30:13,163 INFO L226 Difference]: Without dead ends: 490 [2021-12-06 23:30:13,163 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-12-06 23:30:13,164 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 27 mSDsluCounter, 1487 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 1746 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:30:13,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 1746 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:30:13,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2021-12-06 23:30:13,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 462. [2021-12-06 23:30:13,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 413 states have (on average 1.234866828087167) internal successors, (510), 419 states have internal predecessors, (510), 27 states have call successors, (27), 20 states have call predecessors, (27), 21 states have return successors, (27), 23 states have call predecessors, (27), 23 states have call successors, (27) [2021-12-06 23:30:13,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 564 transitions. [2021-12-06 23:30:13,169 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 564 transitions. Word has length 64 [2021-12-06 23:30:13,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:30:13,169 INFO L470 AbstractCegarLoop]: Abstraction has 462 states and 564 transitions. [2021-12-06 23:30:13,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 7 states have internal predecessors, (59), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 23:30:13,170 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 564 transitions. [2021-12-06 23:30:13,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-12-06 23:30:13,170 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:30:13,170 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:30:13,177 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (48)] Ended with exit code 0 [2021-12-06 23:30:13,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:30:13,371 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-06 23:30:13,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:30:13,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1972927547, now seen corresponding path program 1 times [2021-12-06 23:30:13,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 23:30:13,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1033035060] [2021-12-06 23:30:13,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:30:13,372 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 23:30:13,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 23:30:13,372 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 23:30:13,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2021-12-06 23:30:13,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 23:30:13,431 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 23:30:13,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 23:30:13,575 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-12-06 23:30:13,575 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 23:30:13,575 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2021-12-06 23:30:13,577 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2021-12-06 23:30:13,584 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (49)] Ended with exit code 0 [2021-12-06 23:30:13,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 23:30:13,783 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:30:13,785 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 23:30:13,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 11:30:13 BoogieIcfgContainer [2021-12-06 23:30:13,864 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 23:30:13,864 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 23:30:13,864 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 23:30:13,865 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 23:30:13,865 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:29:50" (3/4) ... [2021-12-06 23:30:13,867 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 23:30:13,867 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 23:30:13,867 INFO L158 Benchmark]: Toolchain (without parser) took 24720.47ms. Allocated memory was 65.0MB in the beginning and 107.0MB in the end (delta: 41.9MB). Free memory was 46.4MB in the beginning and 35.9MB in the end (delta: 10.4MB). Peak memory consumption was 51.5MB. Max. memory is 16.1GB. [2021-12-06 23:30:13,867 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 65.0MB. Free memory was 46.2MB in the beginning and 46.1MB in the end (delta: 95.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 23:30:13,868 INFO L158 Benchmark]: CACSL2BoogieTranslator took 322.71ms. Allocated memory is still 65.0MB. Free memory was 46.2MB in the beginning and 39.0MB in the end (delta: 7.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-06 23:30:13,868 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.48ms. Allocated memory is still 65.0MB. Free memory was 39.0MB in the beginning and 34.5MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-06 23:30:13,868 INFO L158 Benchmark]: Boogie Preprocessor took 59.06ms. Allocated memory is still 65.0MB. Free memory was 34.5MB in the beginning and 31.6MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 23:30:13,868 INFO L158 Benchmark]: RCFGBuilder took 676.45ms. Allocated memory was 65.0MB in the beginning and 88.1MB in the end (delta: 23.1MB). Free memory was 31.3MB in the beginning and 64.9MB in the end (delta: -33.6MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. [2021-12-06 23:30:13,868 INFO L158 Benchmark]: TraceAbstraction took 23584.83ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 64.3MB in the beginning and 35.9MB in the end (delta: 28.3MB). Peak memory consumption was 46.6MB. Max. memory is 16.1GB. [2021-12-06 23:30:13,868 INFO L158 Benchmark]: Witness Printer took 2.61ms. Allocated memory is still 107.0MB. Free memory is still 35.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 23:30:13,869 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 65.0MB. Free memory was 46.2MB in the beginning and 46.1MB in the end (delta: 95.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 322.71ms. Allocated memory is still 65.0MB. Free memory was 46.2MB in the beginning and 39.0MB in the end (delta: 7.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.48ms. Allocated memory is still 65.0MB. Free memory was 39.0MB in the beginning and 34.5MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.06ms. Allocated memory is still 65.0MB. Free memory was 34.5MB in the beginning and 31.6MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 676.45ms. Allocated memory was 65.0MB in the beginning and 88.1MB in the end (delta: 23.1MB). Free memory was 31.3MB in the beginning and 64.9MB in the end (delta: -33.6MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. * TraceAbstraction took 23584.83ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 64.3MB in the beginning and 35.9MB in the end (delta: 28.3MB). Peak memory consumption was 46.6MB. Max. memory is 16.1GB. * Witness Printer took 2.61ms. Allocated memory is still 107.0MB. Free memory is still 35.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 65. Possible FailurePath: [L36] int FloppyThread ; [L37] int KernelMode ; [L38] int Suspended ; [L39] int Executive ; [L40] int DiskController ; [L41] int FloppyDiskPeripheral ; [L42] int FlConfigCallBack ; [L43] int MaximumInterfaceType ; [L44] int MOUNTDEV_MOUNTED_DEVICE_GUID ; [L45] int myStatus ; [L46] int s ; [L47] int UNLOADED ; [L48] int NP ; [L49] int DC ; [L50] int SKIP1 ; [L51] int SKIP2 ; [L52] int MPR1 ; [L53] int MPR3 ; [L54] int IPC ; [L55] int pended ; [L56] int compRegistered ; [L57] int lowerDriverReturn ; [L58] int setEventCalled ; [L59] int customIrp ; [L91] int PagingReferenceCount = 0; [L92] int PagingMutex = 0; VAL [compRegistered=0, customIrp=0, DC=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=0, MPR3=0, myStatus=0, NP=0, PagingMutex=0, PagingReferenceCount=0, pended=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, Suspended=0, UNLOADED=0] [L671] int status ; [L672] int irp = __VERIFIER_nondet_int() ; [L673] int pirp ; [L674] int pirp__IoStatus__Status ; [L675] int irp_choice = __VERIFIER_nondet_int() ; [L676] int devobj = __VERIFIER_nondet_int() ; [L677] int __cil_tmp8 ; [L679] FloppyThread = 0 [L680] KernelMode = 0 [L681] Suspended = 0 [L682] Executive = 0 [L683] DiskController = 0 [L684] FloppyDiskPeripheral = 0 [L685] FlConfigCallBack = 0 [L686] MaximumInterfaceType = 0 [L687] MOUNTDEV_MOUNTED_DEVICE_GUID = 0 [L688] myStatus = 0 [L689] s = 0 [L690] UNLOADED = 0 [L691] NP = 0 [L692] DC = 0 [L693] SKIP1 = 0 [L694] SKIP2 = 0 [L695] MPR1 = 0 [L696] MPR3 = 0 [L697] IPC = 0 [L698] pended = 0 [L699] compRegistered = 0 [L700] lowerDriverReturn = 0 [L701] setEventCalled = 0 [L702] customIrp = 0 [L706] status = 0 [L707] pirp = irp [L708] CALL _BLAST_init() [L74] UNLOADED = 0 [L75] NP = 1 [L76] DC = 2 [L77] SKIP1 = 3 [L78] SKIP2 = 4 [L79] MPR1 = 5 [L80] MPR3 = 6 [L81] IPC = 7 [L82] s = UNLOADED [L83] pended = 0 [L84] compRegistered = 0 [L85] lowerDriverReturn = 0 [L86] setEventCalled = 0 [L87] customIrp = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L708] RET _BLAST_init() [L710] COND TRUE status >= 0 [L711] s = NP [L712] customIrp = 0 [L713] setEventCalled = customIrp [L714] lowerDriverReturn = setEventCalled [L715] compRegistered = lowerDriverReturn [L716] pended = compRegistered [L717] pirp__IoStatus__Status = 0 [L718] myStatus = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=9, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=9, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, UNLOADED=0] [L719] COND TRUE irp_choice == 0 [L720] pirp__IoStatus__Status = -1073741637 [L721] myStatus = -1073741637 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=9, pirp__IoStatus__Status=3221225659, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, UNLOADED=0] [L724] CALL stub_driver_init() [L661] s = NP [L662] pended = 0 [L663] compRegistered = 0 [L664] lowerDriverReturn = 0 [L665] setEventCalled = 0 [L666] customIrp = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L724] RET stub_driver_init() [L727] COND FALSE !(status < 0) [L731] int tmp_ndt_1; [L732] tmp_ndt_1 = __VERIFIER_nondet_int() [L733] COND TRUE tmp_ndt_1 == 3 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=9, pirp__IoStatus__Status=3221225659, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L740] CALL, EXPR FloppyPnp(devobj, pirp) [L164] int DeviceObject__DeviceExtension = __VERIFIER_nondet_int() ; [L165] int Irp__Tail__Overlay__CurrentStackLocation = __VERIFIER_nondet_int() ; [L166] int Irp__IoStatus__Information ; [L167] int Irp__IoStatus__Status ; [L168] int Irp__CurrentLocation = __VERIFIER_nondet_int() ; [L169] int disketteExtension__IsRemoved = __VERIFIER_nondet_int() ; [L170] int disketteExtension__IsStarted = __VERIFIER_nondet_int() ; [L171] int disketteExtension__TargetObject = __VERIFIER_nondet_int() ; [L172] int disketteExtension__HoldNewRequests ; [L173] int disketteExtension__FloppyThread = __VERIFIER_nondet_int() ; [L174] int disketteExtension__InterfaceString__Buffer = __VERIFIER_nondet_int() ; [L175] int disketteExtension__InterfaceString = __VERIFIER_nondet_int() ; [L176] int disketteExtension__ArcName__Length = __VERIFIER_nondet_int() ; [L177] int disketteExtension__ArcName = __VERIFIER_nondet_int() ; [L178] int irpSp__MinorFunction = __VERIFIER_nondet_int() ; [L179] int IoGetConfigurationInformation__FloppyCount = __VERIFIER_nondet_int() ; [L180] int irpSp ; [L181] int disketteExtension ; [L182] int ntStatus ; [L183] int doneEvent = __VERIFIER_nondet_int() ; [L184] int irpSp___0 ; [L185] int nextIrpSp ; [L186] int nextIrpSp__Control ; [L187] int irpSp___1 ; [L188] int irpSp__Context ; [L189] int irpSp__Control ; [L190] long __cil_tmp29 ; [L191] long __cil_tmp30 ; [L194] ntStatus = 0 [L195] PagingReferenceCount ++ VAL [\old(DeviceObject)=8, \old(Irp)=9, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L196] COND TRUE PagingReferenceCount == 1 VAL [\old(DeviceObject)=8, \old(Irp)=9, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L199] disketteExtension = DeviceObject__DeviceExtension [L200] irpSp = Irp__Tail__Overlay__CurrentStackLocation VAL [\old(DeviceObject)=8, \old(Irp)=9, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L201] COND FALSE !(\read(disketteExtension__IsRemoved)) VAL [\old(DeviceObject)=8, \old(Irp)=9, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__IsRemoved=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L210] COND FALSE !(irpSp__MinorFunction == 0) VAL [\old(DeviceObject)=8, \old(Irp)=9, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__IsRemoved=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L213] COND TRUE irpSp__MinorFunction == 5 VAL [\old(DeviceObject)=8, \old(Irp)=9, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__IsRemoved=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L239] COND TRUE irpSp__MinorFunction == 5 VAL [\old(DeviceObject)=8, \old(Irp)=9, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__IsRemoved=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L242] COND FALSE !(! disketteExtension__IsStarted) [L258] disketteExtension__HoldNewRequests = 1 [L259] CALL, EXPR FlQueueIrpToThread(Irp, disketteExtension) [L101] int status ; [L102] int threadHandle = __VERIFIER_nondet_int() ; [L103] int DisketteExtension__PoweringDown = __VERIFIER_nondet_int() ; [L104] int DisketteExtension__ThreadReferenceCount = __VERIFIER_nondet_int() ; [L105] int DisketteExtension__FloppyThread = __VERIFIER_nondet_int() ; [L106] int Irp__IoStatus__Status ; [L107] int Irp__IoStatus__Information ; [L108] int Irp__Tail__Overlay__CurrentStackLocation__Control ; [L109] int ObjAttributes = __VERIFIER_nondet_int() ; [L110] int __cil_tmp12 ; [L111] int __cil_tmp13 ; VAL [\old(DisketteExtension)=10, \old(Irp)=9, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=10, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L114] COND FALSE !(DisketteExtension__PoweringDown == 1) [L120] DisketteExtension__ThreadReferenceCount ++ VAL [\old(DisketteExtension)=10, \old(Irp)=9, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=10, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L121] COND FALSE !(DisketteExtension__ThreadReferenceCount == 0) VAL [\old(DisketteExtension)=10, \old(Irp)=9, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=10, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L153] COND TRUE pended == 0 [L154] pended = 1 VAL [\old(DisketteExtension)=10, \old(Irp)=9, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=10, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L160] return (259); VAL [\old(DisketteExtension)=10, \old(Irp)=9, \result=259, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=10, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L259] RET, EXPR FlQueueIrpToThread(Irp, disketteExtension) [L259] ntStatus = FlQueueIrpToThread(Irp, disketteExtension) [L262] __cil_tmp29 = (long )ntStatus VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__HoldNewRequests=1, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L263] COND TRUE __cil_tmp29 == 259L VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__HoldNewRequests=1, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L265-L266] CALL KeWaitForSingleObject(disketteExtension__FloppyThread, Executive, KernelMode, 0, 0) VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=2147483648, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1036] COND FALSE !(s == MPR3) VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=2147483648, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, Object=2147483648, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1045] COND FALSE !(customIrp == 1) VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=2147483648, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, Object=2147483648, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1049] COND FALSE !(s == MPR3) VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=2147483648, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, Object=2147483648, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1056] int tmp_ndt_8; [L1057] tmp_ndt_8 = __VERIFIER_nondet_int() [L1058] COND TRUE tmp_ndt_8 == 0 VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=2147483648, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, Object=2147483648, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, tmp_ndt_8=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1064] return (0); VAL [\old(Alertable)=0, \old(customIrp)=0, \old(Object)=2147483648, \old(s)=1, \old(setEventCalled)=0, \old(Timeout)=0, \old(WaitMode)=0, \old(WaitReason)=0, \result=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, Object=2147483648, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, tmp_ndt_8=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L265-L266] RET KeWaitForSingleObject(disketteExtension__FloppyThread, Executive, KernelMode, 0, 0) VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__FloppyThread=2147483648, disketteExtension__HoldNewRequests=1, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, KeWaitForSingleObject(disketteExtension__FloppyThread, Executive, KernelMode, 0, 0)=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L268] COND TRUE disketteExtension__FloppyThread != 0 VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__FloppyThread=2147483648, disketteExtension__HoldNewRequests=1, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L271] disketteExtension__FloppyThread = 0 [L272] Irp__IoStatus__Status = 0 [L273] myStatus = 0 VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L274] COND TRUE s == NP [L275] s = SKIP1 VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L282] Irp__CurrentLocation ++ [L283] Irp__Tail__Overlay__CurrentStackLocation ++ VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L284] CALL, EXPR IofCallDriver(disketteExtension__TargetObject, Irp) VAL [\old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L938] int returnVal2 ; [L939] int compRetStatus1 ; [L940] int lcontext = __VERIFIER_nondet_int() ; [L941] unsigned long __cil_tmp7 ; VAL [\old(DeviceObject)=11, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=11, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lcontext=13, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L944] COND FALSE !(\read(compRegistered)) VAL [\old(DeviceObject)=11, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=11, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lcontext=13, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L957] int tmp_ndt_12; [L958] tmp_ndt_12 = __VERIFIER_nondet_int() [L959] COND TRUE tmp_ndt_12 == 0 VAL [\old(DeviceObject)=11, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=11, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lcontext=13, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_12=0, UNLOADED=0] [L970] returnVal2 = 0 VAL [\old(DeviceObject)=11, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=11, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lcontext=13, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_12=0, UNLOADED=0] [L983] COND FALSE !(s == NP) VAL [\old(DeviceObject)=11, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=11, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lcontext=13, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_12=0, UNLOADED=0] [L987] COND FALSE !(s == MPR1) VAL [\old(DeviceObject)=11, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=11, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lcontext=13, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_12=0, UNLOADED=0] [L996] COND TRUE s == SKIP1 [L997] s = SKIP2 [L998] lowerDriverReturn = returnVal2 VAL [\old(DeviceObject)=11, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=11, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lcontext=13, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_12=0, UNLOADED=0] [L1006] return (returnVal2); VAL [\old(DeviceObject)=11, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(s)=3, \old(setEventCalled)=0, \result=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=11, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, KernelMode=0, lcontext=13, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_12=0, UNLOADED=0] [L284] RET, EXPR IofCallDriver(disketteExtension__TargetObject, Irp) VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2, disketteExtension__TargetObject=11, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IofCallDriver(disketteExtension__TargetObject, Irp)=0, IPC=7, Irp=9, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L284] ntStatus = IofCallDriver(disketteExtension__TargetObject, Irp) [L430] PagingReferenceCount -- VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2, disketteExtension__TargetObject=11, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L431] COND TRUE PagingReferenceCount == 0 VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2, disketteExtension__TargetObject=11, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L434] return (ntStatus); VAL [\old(DeviceObject)=8, \old(Irp)=9, \result=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceObject__DeviceExtension=10, DiskController=0, disketteExtension=10, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=2, disketteExtension__TargetObject=11, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=9, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L740] RET, EXPR FloppyPnp(devobj, pirp) [L740] status = FloppyPnp(devobj, pirp) [L750] COND TRUE pended == 1 VAL [compRegistered=0, customIrp=0, DC=2, devobj=8, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L751] COND FALSE !(s == NP) VAL [compRegistered=0, customIrp=0, DC=2, devobj=8, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L758] COND TRUE pended == 1 VAL [compRegistered=0, customIrp=0, DC=2, devobj=8, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L759] COND FALSE !(s == MPR3) VAL [compRegistered=0, customIrp=0, DC=2, devobj=8, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L766] COND TRUE s != UNLOADED VAL [compRegistered=0, customIrp=0, DC=2, devobj=8, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L767] COND TRUE status != -1 VAL [compRegistered=0, customIrp=0, DC=2, devobj=8, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L768] COND FALSE !(s != SKIP2) VAL [compRegistered=0, customIrp=0, DC=2, devobj=8, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L782] COND TRUE pended == 1 VAL [compRegistered=0, customIrp=0, DC=2, devobj=8, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L783] COND TRUE status != 259 VAL [compRegistered=0, customIrp=0, DC=2, devobj=8, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=3, UNLOADED=0] [L784] CALL errorFn() VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L65] reach_error() VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] - UnprovableResult [Line: 670]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 239 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 23.5s, OverallIterations: 48, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7518 SdHoareTripleChecker+Valid, 3.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7410 mSDsluCounter, 52270 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 38180 mSDsCounter, 464 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4757 IncrementalHoareTripleChecker+Invalid, 5221 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 464 mSolverCounterUnsat, 14090 mSDtfsCounter, 4757 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1992 GetRequests, 1744 SyntacticMatches, 0 SemanticMatches, 248 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=574occurred in iteration=13, InterpolantAutomatonStates: 270, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 47 MinimizatonAttempts, 1102 StatesRemovedByMinimization, 41 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 2026 NumberOfCodeBlocks, 2026 NumberOfCodeBlocksAsserted, 48 NumberOfCheckSat, 1913 ConstructedInterpolants, 0 QuantifiedInterpolants, 5714 SizeOfPredicates, 85 NumberOfNonLiveVariables, 7245 ConjunctsInSsa, 244 ConjunctsInUnsatCore, 47 InterpolantComputations, 47 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-12-06 23:30:13,905 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6329217b-4022-4001-a9fd-5301db493f68/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample