/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=1.0 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:57:21,841 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:57:21,845 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:57:21,876 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:57:21,888 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:57:21,892 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:57:21,894 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:57:21,896 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:57:21,898 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:57:21,899 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:57:21,900 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:57:21,902 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:57:21,903 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:57:21,906 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:57:21,912 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:57:21,915 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:57:21,916 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:57:21,918 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:57:21,919 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:57:21,925 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:57:21,927 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:57:21,929 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:57:21,930 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:57:21,931 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:57:21,934 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:57:21,934 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:57:21,934 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:57:21,935 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:57:21,936 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:57:21,937 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:57:21,937 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:57:21,938 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:57:21,939 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:57:21,940 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:57:21,942 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:57:21,942 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:57:21,943 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:57:21,943 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:57:21,943 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:57:21,944 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:57:21,945 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:57:21,946 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 08:57:21,974 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:57:21,975 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:57:21,976 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:57:21,977 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:57:21,977 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:57:21,977 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:57:21,977 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:57:21,978 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:57:21,978 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:57:21,978 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:57:21,978 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:57:21,978 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:57:21,979 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:57:21,979 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:57:21,979 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:57:21,979 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:57:21,979 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:57:21,980 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:57:21,980 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:57:21,980 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:57:21,980 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:57:21,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:57:21,981 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:57:21,981 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:57:21,981 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:57:21,981 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:57:21,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:57:21,982 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:57:21,982 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:57:21,982 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; [2020-09-25 08:57:22,478 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:57:22,502 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:57:22,507 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:57:22,510 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:57:22,511 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:57:22,512 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-1.i [2020-09-25 08:57:22,610 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cd7b54270/11027fe9c2cc438b9723b1ac7909161f/FLAGdf8d44b8f [2020-09-25 08:57:23,274 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:57:23,275 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/heap-manipulation/dll_of_dll-1.i [2020-09-25 08:57:23,294 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cd7b54270/11027fe9c2cc438b9723b1ac7909161f/FLAGdf8d44b8f [2020-09-25 08:57:23,498 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cd7b54270/11027fe9c2cc438b9723b1ac7909161f [2020-09-25 08:57:23,511 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:57:23,516 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:57:23,517 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:57:23,517 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:57:23,522 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:57:23,523 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:57:23" (1/1) ... [2020-09-25 08:57:23,527 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58b1442d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:57:23, skipping insertion in model container [2020-09-25 08:57:23,527 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:57:23" (1/1) ... [2020-09-25 08:57:23,537 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:57:23,594 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:57:24,166 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:57:24,182 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:57:24,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:57:24,360 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:57:24,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:57:24 WrapperNode [2020-09-25 08:57:24,362 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:57:24,363 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:57:24,366 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:57:24,366 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:57:24,380 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:57:24" (1/1) ... [2020-09-25 08:57:24,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:57:24" (1/1) ... [2020-09-25 08:57:24,402 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:57:24" (1/1) ... [2020-09-25 08:57:24,402 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:57:24" (1/1) ... [2020-09-25 08:57:24,427 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:57:24" (1/1) ... [2020-09-25 08:57:24,440 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:57:24" (1/1) ... [2020-09-25 08:57:24,446 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:57:24" (1/1) ... [2020-09-25 08:57:24,455 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:57:24,456 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:57:24,456 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:57:24,456 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:57:24,458 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:57:24" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:57:24,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:57:24,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:57:24,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-09-25 08:57:24,543 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-09-25 08:57:24,543 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-09-25 08:57:24,543 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2020-09-25 08:57:24,543 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_slave [2020-09-25 08:57:24,543 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_master [2020-09-25 08:57:24,543 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_slave [2020-09-25 08:57:24,544 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_generic [2020-09-25 08:57:24,544 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_slave [2020-09-25 08:57:24,544 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_slave [2020-09-25 08:57:24,544 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_nested_lists [2020-09-25 08:57:24,544 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_reinit_nested_lists [2020-09-25 08:57:24,544 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_master [2020-09-25 08:57:24,545 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_master [2020-09-25 08:57:24,545 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_master [2020-09-25 08:57:24,545 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_base [2020-09-25 08:57:24,545 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_full [2020-09-25 08:57:24,546 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_dangling [2020-09-25 08:57:24,546 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_init [2020-09-25 08:57:24,546 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:57:24,547 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:57:24,547 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 08:57:24,547 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 08:57:24,547 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 08:57:24,547 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 08:57:24,547 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 08:57:24,548 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 08:57:24,548 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 08:57:24,548 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 08:57:24,548 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 08:57:24,548 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 08:57:24,549 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 08:57:24,549 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 08:57:24,549 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 08:57:24,549 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 08:57:24,549 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 08:57:24,549 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 08:57:24,549 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-09-25 08:57:24,550 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-09-25 08:57:24,550 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 08:57:24,550 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 08:57:24,550 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 08:57:24,550 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 08:57:24,550 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 08:57:24,551 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 08:57:24,551 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 08:57:24,551 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 08:57:24,551 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 08:57:24,551 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 08:57:24,551 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 08:57:24,552 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 08:57:24,552 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 08:57:24,552 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 08:57:24,552 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 08:57:24,552 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 08:57:24,552 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 08:57:24,553 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 08:57:24,553 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 08:57:24,553 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 08:57:24,553 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 08:57:24,553 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 08:57:24,554 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 08:57:24,554 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 08:57:24,554 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 08:57:24,554 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 08:57:24,555 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 08:57:24,555 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 08:57:24,556 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 08:57:24,556 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 08:57:24,557 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 08:57:24,558 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 08:57:24,558 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 08:57:24,558 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 08:57:24,558 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 08:57:24,558 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 08:57:24,558 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 08:57:24,558 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 08:57:24,558 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 08:57:24,558 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 08:57:24,559 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 08:57:24,559 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 08:57:24,559 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-25 08:57:24,560 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 08:57:24,560 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 08:57:24,560 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-25 08:57:24,560 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 08:57:24,560 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 08:57:24,560 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-25 08:57:24,560 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 08:57:24,560 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 08:57:24,560 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 08:57:24,560 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 08:57:24,561 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 08:57:24,561 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 08:57:24,561 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 08:57:24,561 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 08:57:24,561 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 08:57:24,561 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 08:57:24,561 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 08:57:24,561 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 08:57:24,561 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 08:57:24,562 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 08:57:24,562 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 08:57:24,562 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 08:57:24,562 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 08:57:24,562 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 08:57:24,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 08:57:24,562 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 08:57:24,562 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 08:57:24,562 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 08:57:24,562 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 08:57:24,563 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 08:57:24,563 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 08:57:24,563 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 08:57:24,564 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 08:57:24,564 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 08:57:24,564 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 08:57:24,565 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 08:57:24,565 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 08:57:24,565 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 08:57:24,565 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 08:57:24,565 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 08:57:24,565 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 08:57:24,566 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 08:57:24,570 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-25 08:57:24,573 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 08:57:24,573 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:57:24,573 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2020-09-25 08:57:24,573 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_slave [2020-09-25 08:57:24,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 08:57:24,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 08:57:24,574 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_master [2020-09-25 08:57:24,575 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_slave [2020-09-25 08:57:24,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 08:57:24,575 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_generic [2020-09-25 08:57:24,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 08:57:24,576 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-09-25 08:57:24,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 08:57:24,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 08:57:24,576 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_slave [2020-09-25 08:57:24,576 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_slave [2020-09-25 08:57:24,583 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_nested_lists [2020-09-25 08:57:24,583 INFO L130 BoogieDeclarations]: Found specification of procedure dll_reinit_nested_lists [2020-09-25 08:57:24,583 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_master [2020-09-25 08:57:24,583 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_master [2020-09-25 08:57:24,584 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_master [2020-09-25 08:57:24,584 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_base [2020-09-25 08:57:24,584 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_full [2020-09-25 08:57:24,584 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_dangling [2020-09-25 08:57:24,584 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_init [2020-09-25 08:57:24,584 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:57:24,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:57:24,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:57:25,557 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:57:25,557 INFO L295 CfgBuilder]: Removed 38 assume(true) statements. [2020-09-25 08:57:25,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:57:25 BoogieIcfgContainer [2020-09-25 08:57:25,575 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:57:25,578 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:57:25,578 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:57:25,582 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:57:25,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:57:23" (1/3) ... [2020-09-25 08:57:25,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@415ae77e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:57:25, skipping insertion in model container [2020-09-25 08:57:25,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:57:24" (2/3) ... [2020-09-25 08:57:25,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@415ae77e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:57:25, skipping insertion in model container [2020-09-25 08:57:25,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:57:25" (3/3) ... [2020-09-25 08:57:25,587 INFO L109 eAbstractionObserver]: Analyzing ICFG dll_of_dll-1.i [2020-09-25 08:57:25,600 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:57:25,614 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:57:25,639 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:57:25,683 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:57:25,683 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:57:25,684 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:57:25,684 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:57:25,684 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:57:25,684 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:57:25,684 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:57:25,684 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:57:25,718 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states. [2020-09-25 08:57:25,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 08:57:25,731 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:57:25,733 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:57:25,734 INFO L427 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:57:25,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:57:25,741 INFO L82 PathProgramCache]: Analyzing trace with hash 575468621, now seen corresponding path program 1 times [2020-09-25 08:57:25,750 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:57:25,751 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2127145702] [2020-09-25 08:57:25,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:57:26,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:26,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:26,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:26,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:27,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:31,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:31,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-25 08:57:31,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:57:31,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 08:57:31,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:31,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:31,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:31,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-09-25 08:57:31,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:31,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 08:57:31,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:57:31,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:31,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:31,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:31,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:57:31,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:31,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 08:57:31,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:31,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:31,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:31,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:31,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:31,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:31,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 08:57:31,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:31,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:31,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:31,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:31,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:34,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:36,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:36,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-25 08:57:36,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:57:36,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-09-25 08:57:36,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:36,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:36,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:36,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-09-25 08:57:36,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:36,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:36,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:57:36,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:36,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:36,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:36,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:39,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:39,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:41,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:41,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 08:57:41,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:57:41,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 08:57:41,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:41,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:41,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:41,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-09-25 08:57:41,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:41,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:41,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:57:41,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:41,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:41,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:41,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 08:57:41,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:41,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 08:57:41,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:41,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:41,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:41,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:41,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:41,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:41,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:57:41,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:41,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:41,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:41,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 08:57:41,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:41,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 08:57:41,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:41,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:41,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:41,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:41,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:41,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:41,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:57:41,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:41,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:41,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:41,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 08:57:41,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:41,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 08:57:41,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:41,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:41,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:41,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:41,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:41,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:41,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 08:57:41,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:41,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:41,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:41,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 08:57:41,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:41,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 08:57:41,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:41,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:41,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:41,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:41,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:41,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:41,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:57:41,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:41,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:41,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:41,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 08:57:41,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:41,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 08:57:41,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:41,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:41,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:41,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:41,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:41,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:41,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:57:41,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:41,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:41,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:41,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 08:57:41,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:41,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 08:57:41,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:41,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:41,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:41,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:41,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:41,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:41,550 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-09-25 08:57:41,551 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2127145702] [2020-09-25 08:57:41,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:57:41,554 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 08:57:41,555 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621750426] [2020-09-25 08:57:41,561 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 08:57:41,562 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:57:41,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 08:57:41,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 08:57:41,583 INFO L87 Difference]: Start difference. First operand 276 states. Second operand 4 states. [2020-09-25 08:57:42,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:57:42,297 INFO L93 Difference]: Finished difference Result 568 states and 767 transitions. [2020-09-25 08:57:42,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 08:57:42,299 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 85 [2020-09-25 08:57:42,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:57:42,326 INFO L225 Difference]: With dead ends: 568 [2020-09-25 08:57:42,327 INFO L226 Difference]: Without dead ends: 275 [2020-09-25 08:57:42,339 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:57:42,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2020-09-25 08:57:42,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 255. [2020-09-25 08:57:42,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-09-25 08:57:42,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 284 transitions. [2020-09-25 08:57:42,459 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 284 transitions. Word has length 85 [2020-09-25 08:57:42,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:57:42,460 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 284 transitions. [2020-09-25 08:57:42,460 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 08:57:42,460 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 284 transitions. [2020-09-25 08:57:42,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-25 08:57:42,465 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:57:42,465 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:57:42,466 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:57:42,466 INFO L427 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:57:42,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:57:42,466 INFO L82 PathProgramCache]: Analyzing trace with hash -1893520380, now seen corresponding path program 1 times [2020-09-25 08:57:42,467 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:57:42,467 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [604041297] [2020-09-25 08:57:42,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:57:42,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:42,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:42,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:42,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:43,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:47,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:47,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-09-25 08:57:47,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:57:47,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-25 08:57:47,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:47,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:47,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:57:47,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 08:57:47,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 08:57:47,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:47,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:57:47,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:47,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:47,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:47,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:57:47,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:47,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:57:47,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:47,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:47,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:47,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:47,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:47,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:57:47,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 08:57:47,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:47,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:47,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:47,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:48,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:52,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:52,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-25 08:57:52,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:57:52,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 08:57:52,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:52,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:52,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:57:52,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 08:57:52,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 08:57:52,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:57:52,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:57:52,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:52,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:52,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:52,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:53,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:57,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:57,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 08:57:57,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:57:57,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-25 08:57:57,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:57,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:57,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:57:57,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:57:57,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 08:57:57,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:57,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:57:57,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:57,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:57,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:57,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 08:57:57,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:57,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-25 08:57:57,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:57,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:57,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:57:57,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:57,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 08:57:57,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:57,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:57:57,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:57,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:57,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:57,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 08:57:57,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:57,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-25 08:57:57,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:57,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:57,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:57:57,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:57,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 08:57:57,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:57,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:57:57,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:57,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:58,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:58,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 08:57:58,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:58,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 08:57:58,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:58,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:58,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:58,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:58,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:58,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:58,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 08:57:58,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:58,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:58,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:58,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 08:57:58,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:58,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-25 08:57:58,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:58,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:58,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:57:58,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:58,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 08:57:58,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:58,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:57:58,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:58,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:58,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:58,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 08:57:58,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:58,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 08:57:58,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:58,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:58,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:58,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:58,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:58,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:58,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:57:58,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:58,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:58,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:58,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 08:57:58,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:58,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 08:57:58,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:58,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:58,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:58,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:58,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:58,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:57:58,216 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-09-25 08:57:58,217 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [604041297] [2020-09-25 08:57:58,217 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:57:58,218 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 08:57:58,218 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029055766] [2020-09-25 08:57:58,221 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 08:57:58,221 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:57:58,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 08:57:58,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:57:58,222 INFO L87 Difference]: Start difference. First operand 255 states and 284 transitions. Second operand 7 states. [2020-09-25 08:57:59,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:57:59,533 INFO L93 Difference]: Finished difference Result 542 states and 621 transitions. [2020-09-25 08:57:59,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 08:57:59,534 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 87 [2020-09-25 08:57:59,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:57:59,539 INFO L225 Difference]: With dead ends: 542 [2020-09-25 08:57:59,539 INFO L226 Difference]: Without dead ends: 296 [2020-09-25 08:57:59,541 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-09-25 08:57:59,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-09-25 08:57:59,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 276. [2020-09-25 08:57:59,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-09-25 08:57:59,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 307 transitions. [2020-09-25 08:57:59,570 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 307 transitions. Word has length 87 [2020-09-25 08:57:59,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:57:59,571 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 307 transitions. [2020-09-25 08:57:59,571 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 08:57:59,571 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 307 transitions. [2020-09-25 08:57:59,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-09-25 08:57:59,580 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:57:59,580 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:57:59,581 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:57:59,581 INFO L427 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:57:59,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:57:59,581 INFO L82 PathProgramCache]: Analyzing trace with hash 1671014528, now seen corresponding path program 1 times [2020-09-25 08:57:59,581 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:57:59,582 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [400983633] [2020-09-25 08:57:59,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:57:59,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:59,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:00,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:00,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:00,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:02,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:04,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:04,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 296 [2020-09-25 08:58:04,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:58:04,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-09-25 08:58:04,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:04,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:04,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-25 08:58:04,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 08:58:04,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-09-25 08:58:04,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:58:04,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:58:04,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:04,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:04,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:04,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:58:04,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:04,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:58:04,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:04,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:04,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:58:04,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:04,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:58:04,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:04,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 08:58:04,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:05,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:05,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:05,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:08,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:09,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:09,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 270 [2020-09-25 08:58:09,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:58:09,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-09-25 08:58:09,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:09,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:09,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-25 08:58:09,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 08:58:09,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-09-25 08:58:09,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:58:10,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:58:10,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:10,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:10,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:10,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:11,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking...