/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-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:57:22,031 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:57:22,035 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:57:22,078 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:57:22,079 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:57:22,091 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:57:22,093 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:57:22,097 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:57:22,100 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:57:22,104 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:57:22,105 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:57:22,106 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:57:22,107 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:57:22,111 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:57:22,113 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:57:22,115 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:57:22,117 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:57:22,118 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:57:22,120 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:57:22,131 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:57:22,133 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:57:22,135 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:57:22,136 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:57:22,137 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:57:22,140 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:57:22,140 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:57:22,140 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:57:22,145 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:57:22,145 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:57:22,147 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:57:22,147 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:57:22,148 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:57:22,149 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:57:22,150 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:57:22,151 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:57:22,151 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:57:22,152 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:57:22,152 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:57:22,152 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:57:22,154 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:57:22,155 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:57:22,156 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 08:57:22,208 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:57:22,209 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:57:22,211 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:57:22,211 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:57:22,212 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:57:22,212 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:57:22,212 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:57:22,213 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:57:22,213 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:57:22,213 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:57:22,214 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:57:22,214 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:57:22,214 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:57:22,215 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:57:22,215 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:57:22,215 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:57:22,215 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:57:22,216 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:57:22,216 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:57:22,216 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:57:22,216 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:57:22,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:57:22,217 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:57:22,217 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:57:22,217 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:57:22,218 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:57:22,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:57:22,218 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:57:22,218 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:57:22,218 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 08:57:22,730 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:57:22,757 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:57:22,763 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:57:22,765 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:57:22,767 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:57:22,768 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i [2020-09-25 08:57:22,854 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1f52e891b/e0a295db88da470f871eab1d0f48cf2e/FLAG541fc43f9 [2020-09-25 08:57:23,489 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:57:23,490 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i [2020-09-25 08:57:23,510 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1f52e891b/e0a295db88da470f871eab1d0f48cf2e/FLAG541fc43f9 [2020-09-25 08:57:23,749 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1f52e891b/e0a295db88da470f871eab1d0f48cf2e [2020-09-25 08:57:23,762 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:57:23,768 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:57:23,770 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:57:23,770 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:57:23,776 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:57:23,777 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:57:23" (1/1) ... [2020-09-25 08:57:23,783 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@794240ac 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 08:57:23,783 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:57:23" (1/1) ... [2020-09-25 08:57:23,793 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:57:23,877 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:57:24,398 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:57:24,412 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:57:24,507 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:57:24,590 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:57:24,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:57:24 WrapperNode [2020-09-25 08:57:24,591 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:57:24,592 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:57:24,592 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:57:24,592 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:57:24,611 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 08:57:24,611 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 08:57:24,633 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 08:57:24,634 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 08:57:24,664 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 08:57:24,679 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 08:57:24,688 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 08:57:24,708 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:57:24,709 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:57:24,709 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:57:24,709 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:57:24,710 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 08:57:24,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:57:24,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:57:24,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-09-25 08:57:24,802 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-09-25 08:57:24,803 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-09-25 08:57:24,803 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2020-09-25 08:57:24,803 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_slave [2020-09-25 08:57:24,803 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_master [2020-09-25 08:57:24,803 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_slave [2020-09-25 08:57:24,804 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_generic [2020-09-25 08:57:24,804 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_slave [2020-09-25 08:57:24,804 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_slave [2020-09-25 08:57:24,804 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_nested_lists [2020-09-25 08:57:24,804 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_reinit_nested_lists [2020-09-25 08:57:24,804 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_master [2020-09-25 08:57:24,805 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_master [2020-09-25 08:57:24,805 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_master [2020-09-25 08:57:24,805 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_base [2020-09-25 08:57:24,805 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_full [2020-09-25 08:57:24,806 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_dangling [2020-09-25 08:57:24,806 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_init [2020-09-25 08:57:24,806 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:57:24,806 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:57:24,806 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 08:57:24,807 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 08:57:24,807 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 08:57:24,807 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 08:57:24,807 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 08:57:24,807 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 08:57:24,807 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 08:57:24,808 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 08:57:24,808 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 08:57:24,808 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 08:57:24,808 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 08:57:24,808 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 08:57:24,808 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 08:57:24,809 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 08:57:24,809 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 08:57:24,809 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 08:57:24,809 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-09-25 08:57:24,809 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-09-25 08:57:24,809 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 08:57:24,809 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 08:57:24,810 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 08:57:24,810 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 08:57:24,810 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 08:57:24,810 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 08:57:24,810 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 08:57:24,811 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 08:57:24,811 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 08:57:24,811 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 08:57:24,811 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 08:57:24,811 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 08:57:24,811 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 08:57:24,812 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 08:57:24,812 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 08:57:24,812 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 08:57:24,812 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 08:57:24,812 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 08:57:24,812 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 08:57:24,813 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 08:57:24,813 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 08:57:24,813 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 08:57:24,813 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 08:57:24,813 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 08:57:24,813 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 08:57:24,814 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 08:57:24,814 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 08:57:24,814 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 08:57:24,814 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 08:57:24,814 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 08:57:24,814 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 08:57:24,815 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 08:57:24,815 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 08:57:24,815 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 08:57:24,815 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 08:57:24,815 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 08:57:24,815 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 08:57:24,816 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 08:57:24,816 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 08:57:24,816 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 08:57:24,816 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 08:57:24,816 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 08:57:24,816 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-25 08:57:24,816 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 08:57:24,817 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 08:57:24,817 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-25 08:57:24,817 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 08:57:24,817 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 08:57:24,817 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-25 08:57:24,817 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 08:57:24,818 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 08:57:24,818 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 08:57:24,818 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 08:57:24,818 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 08:57:24,818 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 08:57:24,818 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 08:57:24,818 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 08:57:24,819 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 08:57:24,819 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 08:57:24,819 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 08:57:24,819 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 08:57:24,819 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 08:57:24,819 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 08:57:24,819 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 08:57:24,820 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 08:57:24,820 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 08:57:24,820 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 08:57:24,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 08:57:24,820 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 08:57:24,820 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 08:57:24,821 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 08:57:24,821 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 08:57:24,821 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 08:57:24,821 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 08:57:24,821 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 08:57:24,821 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 08:57:24,821 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 08:57:24,822 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 08:57:24,822 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 08:57:24,822 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 08:57:24,822 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 08:57:24,822 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 08:57:24,822 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 08:57:24,823 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 08:57:24,823 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 08:57:24,823 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-25 08:57:24,823 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 08:57:24,823 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:57:24,824 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2020-09-25 08:57:24,824 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_slave [2020-09-25 08:57:24,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 08:57:24,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 08:57:24,824 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_master [2020-09-25 08:57:24,824 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_slave [2020-09-25 08:57:24,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 08:57:24,825 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_generic [2020-09-25 08:57:24,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 08:57:24,825 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-09-25 08:57:24,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 08:57:24,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 08:57:24,825 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_slave [2020-09-25 08:57:24,826 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_slave [2020-09-25 08:57:24,826 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_nested_lists [2020-09-25 08:57:24,826 INFO L130 BoogieDeclarations]: Found specification of procedure dll_reinit_nested_lists [2020-09-25 08:57:24,826 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_master [2020-09-25 08:57:24,826 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_master [2020-09-25 08:57:24,826 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_master [2020-09-25 08:57:24,827 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_base [2020-09-25 08:57:24,827 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_full [2020-09-25 08:57:24,827 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_dangling [2020-09-25 08:57:24,827 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_init [2020-09-25 08:57:24,827 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:57:24,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:57:24,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:57:25,823 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:57:25,824 INFO L295 CfgBuilder]: Removed 38 assume(true) statements. [2020-09-25 08:57:25,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:57:25 BoogieIcfgContainer [2020-09-25 08:57:25,832 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:57:25,833 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:57:25,834 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:57:25,837 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:57:25,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:57:23" (1/3) ... [2020-09-25 08:57:25,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@712c7631 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 08:57:25,839 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 08:57:25,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@712c7631 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 08:57:25,840 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 08:57:25,842 INFO L109 eAbstractionObserver]: Analyzing ICFG dll_of_dll-2.i [2020-09-25 08:57:25,854 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:57:25,866 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:57:25,890 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:57:25,924 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:57:25,925 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:57:25,925 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:57:25,925 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:57:25,925 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:57:25,925 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:57:25,926 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:57:25,926 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:57:25,957 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states. [2020-09-25 08:57:25,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 08:57:25,971 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:57:25,973 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 08:57:25,973 INFO L427 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:57:25,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:57:25,982 INFO L82 PathProgramCache]: Analyzing trace with hash 575468621, now seen corresponding path program 1 times [2020-09-25 08:57:25,992 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:57:25,993 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1328994860] [2020-09-25 08:57:25,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:57:26,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:26,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:26,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:26,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:27,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:31,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:31,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-25 08:57:31,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:57:31,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 08:57:31,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:31,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:31,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:31,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-09-25 08:57:31,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:31,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 08:57:31,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:57:31,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:31,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:31,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:31,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:57:31,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:31,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:57:31,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:31,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:31,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:31,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:31,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:31,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:31,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 08:57:31,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:31,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:31,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:31,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:31,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:32,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:36,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:36,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-25 08:57:36,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:57:36,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 08:57:36,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:36,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:36,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:36,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-09-25 08:57:36,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:36,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:36,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:57:36,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:36,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:36,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:37,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:39,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:39,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:41,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:41,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 08:57:41,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:57:41,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-25 08:57:41,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:41,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:41,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:41,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-09-25 08:57:41,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:41,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:41,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:57:41,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:41,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:41,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:41,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 08:57:41,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:41,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 08:57:41,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:41,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:41,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:41,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:41,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:41,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:41,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:57:41,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:41,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:41,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:41,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 08:57:41,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:41,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 08:57:41,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:41,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:41,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:41,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:41,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:41,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:41,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:57:41,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:41,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:41,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:41,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 08:57:41,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:41,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 08:57:41,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:41,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:41,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:41,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:41,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:41,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:41,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 08:57:41,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:41,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:41,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:41,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 08:57:41,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:41,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 08:57:41,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:41,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:41,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:41,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:41,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:41,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:41,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:57:41,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:41,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:41,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:41,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 08:57:41,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:41,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 08:57:41,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:41,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:41,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:41,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:41,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:41,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:41,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:57:41,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:41,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:41,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:41,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 08:57:41,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:41,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 08:57:41,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:41,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:41,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:41,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:41,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:41,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:41,696 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 08:57:41,697 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1328994860] [2020-09-25 08:57:41,699 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:57:41,699 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 08:57:41,701 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654949170] [2020-09-25 08:57:41,708 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 08:57:41,708 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:57:41,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 08:57:41,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 08:57:41,731 INFO L87 Difference]: Start difference. First operand 276 states. Second operand 4 states. [2020-09-25 08:57:42,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:57:42,324 INFO L93 Difference]: Finished difference Result 568 states and 767 transitions. [2020-09-25 08:57:42,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 08:57:42,326 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 85 [2020-09-25 08:57:42,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:57:42,344 INFO L225 Difference]: With dead ends: 568 [2020-09-25 08:57:42,344 INFO L226 Difference]: Without dead ends: 275 [2020-09-25 08:57:42,357 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 08:57:42,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2020-09-25 08:57:42,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 255. [2020-09-25 08:57:42,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-09-25 08:57:42,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 284 transitions. [2020-09-25 08:57:42,450 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 284 transitions. Word has length 85 [2020-09-25 08:57:42,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:57:42,451 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 284 transitions. [2020-09-25 08:57:42,451 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 08:57:42,451 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 284 transitions. [2020-09-25 08:57:42,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-25 08:57:42,456 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:57:42,456 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 08:57:42,456 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:57:42,457 INFO L427 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:57:42,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:57:42,457 INFO L82 PathProgramCache]: Analyzing trace with hash -1893520380, now seen corresponding path program 1 times [2020-09-25 08:57:42,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:57:42,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1674536071] [2020-09-25 08:57:42,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:57:42,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:42,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:42,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:42,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:43,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:47,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:47,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-09-25 08:57:47,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:57:47,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 08:57:47,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:47,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:47,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:57:47,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 08:57:47,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 08:57:47,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:47,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:57:47,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:47,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:47,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:47,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:57:47,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:47,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:57:47,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:47,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:47,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:47,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:47,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:47,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [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 08:57:47,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:48,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:48,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:52,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:52,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-25 08:57:52,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:57:52,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 08:57:52,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:52,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:52,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:57:52,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 08:57:52,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 08:57:52,614 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 08:57:52,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:52,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:52,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:53,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:54,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:57,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:57,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 08:57:57,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:57:57,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [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 08:57:57,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:57:57,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 08:57:57,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:57:57,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:57:57,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:57,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:57,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:57,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 08:57:57,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:57,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-25 08:57:57,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:57,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:57,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:57:57,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:57,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 08:57:57,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:57,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:57:57,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:57,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:58,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:58,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 08:57:58,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:58,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-25 08:57:58,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:58,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:58,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:57:58,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:58,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 08:57:58,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:58,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:57:58,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:58,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:58,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:58,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 08:57:58,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:58,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 08:57:58,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:58,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:58,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:58,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:58,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:58,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:58,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 08:57:58,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:58,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:58,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:58,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 08:57:58,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:58,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 08:57:58,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:58,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:58,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:57:58,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:58,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 08:57:58,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:57:58,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:57:58,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:58,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:58,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:58,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 08:57:58,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:58,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 08:57:58,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:58,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:58,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:58,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:58,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:58,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:58,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:57:58,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:58,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:57:58,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:57:58,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 08:57:58,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:57:58,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 08:57:58,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:57:58,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:57:58,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:57:58,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:57:58,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:57:58,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:57:58,244 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 08:57:58,245 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1674536071] [2020-09-25 08:57:58,245 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:57:58,246 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 08:57:58,246 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525257006] [2020-09-25 08:57:58,248 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 08:57:58,248 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:57:58,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 08:57:58,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:57:58,249 INFO L87 Difference]: Start difference. First operand 255 states and 284 transitions. Second operand 7 states. [2020-09-25 08:57:59,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:57:59,503 INFO L93 Difference]: Finished difference Result 542 states and 621 transitions. [2020-09-25 08:57:59,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 08:57:59,504 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 87 [2020-09-25 08:57:59,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:57:59,509 INFO L225 Difference]: With dead ends: 542 [2020-09-25 08:57:59,510 INFO L226 Difference]: Without dead ends: 296 [2020-09-25 08:57:59,516 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-09-25 08:57:59,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-09-25 08:57:59,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 276. [2020-09-25 08:57:59,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-09-25 08:57:59,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 307 transitions. [2020-09-25 08:57:59,582 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 307 transitions. Word has length 87 [2020-09-25 08:57:59,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:57:59,583 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 307 transitions. [2020-09-25 08:57:59,583 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 08:57:59,583 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 307 transitions. [2020-09-25 08:57:59,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-09-25 08:57:59,586 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:57:59,587 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 08:57:59,587 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:57:59,587 INFO L427 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:57:59,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:57:59,588 INFO L82 PathProgramCache]: Analyzing trace with hash 1671014528, now seen corresponding path program 1 times [2020-09-25 08:57:59,588 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:57:59,588 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [282693132] [2020-09-25 08:57:59,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:57:59,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:57:59,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:00,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:00,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:00,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:02,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:04,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:04,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 296 [2020-09-25 08:58:04,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:58:04,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5052 [2020-09-25 08:58:04,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:04,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:04,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-25 08:58:04,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 08:58:04,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-09-25 08:58:04,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:04,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:58:04,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:04,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:04,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:04,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:58:04,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:58:04,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:58:04,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:04,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:04,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:58:04,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:58:04,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:58:04,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:04,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 08:58:04,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:05,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:05,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:06,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:06,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:58:10,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:58:10,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 270 [2020-09-25 08:58:10,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:58:10,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 08:58:10,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:58:10,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:58:10,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-25 08:58:10,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 08:58:10,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-09-25 08:58:10,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:58:10,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:58:10,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:58:10,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking...