/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 SequenceOfStatements --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=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=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-adbd35c [2020-10-12 15:40:54,782 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 15:40:54,786 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 15:40:54,831 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 15:40:54,831 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 15:40:54,839 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 15:40:54,841 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 15:40:54,845 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 15:40:54,847 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 15:40:54,849 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 15:40:54,850 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 15:40:54,851 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 15:40:54,851 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 15:40:54,852 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 15:40:54,853 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 15:40:54,854 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 15:40:54,854 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 15:40:54,855 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 15:40:54,857 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 15:40:54,858 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 15:40:54,860 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 15:40:54,861 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 15:40:54,862 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 15:40:54,862 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 15:40:54,865 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 15:40:54,865 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 15:40:54,865 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 15:40:54,866 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 15:40:54,866 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 15:40:54,867 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 15:40:54,867 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 15:40:54,868 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 15:40:54,869 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 15:40:54,869 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 15:40:54,870 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 15:40:54,870 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 15:40:54,871 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 15:40:54,871 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 15:40:54,872 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 15:40:54,872 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 15:40:54,873 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 15:40:54,874 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 [2020-10-12 15:40:54,895 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 15:40:54,895 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 15:40:54,897 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 15:40:54,897 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 15:40:54,897 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 15:40:54,897 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 15:40:54,898 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 15:40:54,898 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 15:40:54,898 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 15:40:54,898 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 15:40:54,898 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 15:40:54,898 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 15:40:54,899 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 15:40:54,899 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 15:40:54,899 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 15:40:54,899 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 15:40:54,899 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 15:40:54,900 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 15:40:54,900 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 15:40:54,900 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 15:40:54,900 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 15:40:54,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 15:40:54,901 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 15:40:54,901 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 15:40:54,901 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 15:40:54,901 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 15:40:54,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 15:40:54,902 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 15:40:54,902 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 15:40:54,902 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 -> SequenceOfStatements 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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 15:40:55,247 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 15:40:55,271 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 15:40:55,274 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 15:40:55,276 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 15:40:55,278 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 15:40:55,278 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-1.i [2020-10-12 15:40:55,340 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/915b00160/26ea7aa56e144537b95f2b20ecebb8d6/FLAG859135040 [2020-10-12 15:40:55,841 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 15:40:55,842 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/heap-manipulation/dll_of_dll-1.i [2020-10-12 15:40:55,867 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/915b00160/26ea7aa56e144537b95f2b20ecebb8d6/FLAG859135040 [2020-10-12 15:40:56,142 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/915b00160/26ea7aa56e144537b95f2b20ecebb8d6 [2020-10-12 15:40:56,152 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 15:40:56,154 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 15:40:56,155 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 15:40:56,155 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 15:40:56,158 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 15:40:56,159 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 03:40:56" (1/1) ... [2020-10-12 15:40:56,162 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65eeb70f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:40:56, skipping insertion in model container [2020-10-12 15:40:56,163 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 03:40:56" (1/1) ... [2020-10-12 15:40:56,171 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 15:40:56,227 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 15:40:56,777 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 15:40:56,788 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 15:40:56,898 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 15:40:56,968 INFO L208 MainTranslator]: Completed translation [2020-10-12 15:40:56,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:40:56 WrapperNode [2020-10-12 15:40:56,969 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 15:40:56,969 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 15:40:56,970 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 15:40:56,970 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 15:40:56,984 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:40:56" (1/1) ... [2020-10-12 15:40:56,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:40:56" (1/1) ... [2020-10-12 15:40:57,004 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:40:56" (1/1) ... [2020-10-12 15:40:57,005 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:40:56" (1/1) ... [2020-10-12 15:40:57,062 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:40:56" (1/1) ... [2020-10-12 15:40:57,076 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:40:56" (1/1) ... [2020-10-12 15:40:57,081 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:40:56" (1/1) ... [2020-10-12 15:40:57,090 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 15:40:57,090 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 15:40:57,091 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 15:40:57,091 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 15:40:57,092 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:40:56" (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 [2020-10-12 15:40:57,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 15:40:57,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 15:40:57,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-12 15:40:57,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-12 15:40:57,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-12 15:40:57,163 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2020-10-12 15:40:57,163 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_slave [2020-10-12 15:40:57,164 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_master [2020-10-12 15:40:57,165 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_slave [2020-10-12 15:40:57,165 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_generic [2020-10-12 15:40:57,165 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_slave [2020-10-12 15:40:57,165 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_slave [2020-10-12 15:40:57,165 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_nested_lists [2020-10-12 15:40:57,165 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_reinit_nested_lists [2020-10-12 15:40:57,165 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_master [2020-10-12 15:40:57,166 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_master [2020-10-12 15:40:57,166 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_master [2020-10-12 15:40:57,166 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_base [2020-10-12 15:40:57,167 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_full [2020-10-12 15:40:57,167 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_dangling [2020-10-12 15:40:57,167 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_init [2020-10-12 15:40:57,167 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 15:40:57,168 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 15:40:57,168 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-12 15:40:57,169 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-12 15:40:57,170 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-12 15:40:57,170 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-12 15:40:57,170 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-12 15:40:57,170 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-12 15:40:57,170 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-12 15:40:57,171 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-12 15:40:57,171 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-12 15:40:57,171 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-12 15:40:57,171 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-12 15:40:57,171 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-12 15:40:57,171 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-12 15:40:57,171 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-12 15:40:57,171 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-12 15:40:57,171 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-12 15:40:57,172 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-12 15:40:57,172 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-12 15:40:57,172 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-12 15:40:57,172 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-12 15:40:57,172 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-12 15:40:57,172 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-12 15:40:57,173 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-12 15:40:57,173 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-12 15:40:57,173 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-12 15:40:57,173 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-12 15:40:57,174 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-12 15:40:57,174 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-12 15:40:57,174 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-12 15:40:57,174 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-12 15:40:57,174 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-12 15:40:57,175 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-12 15:40:57,175 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-12 15:40:57,175 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-12 15:40:57,175 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-12 15:40:57,175 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-12 15:40:57,175 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-12 15:40:57,175 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-12 15:40:57,175 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-12 15:40:57,176 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-12 15:40:57,176 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-12 15:40:57,176 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-12 15:40:57,176 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-12 15:40:57,176 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-12 15:40:57,177 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-12 15:40:57,177 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-12 15:40:57,177 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-12 15:40:57,177 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-12 15:40:57,178 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-12 15:40:57,179 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-12 15:40:57,179 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-12 15:40:57,179 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-12 15:40:57,179 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-12 15:40:57,179 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-12 15:40:57,180 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-12 15:40:57,180 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-12 15:40:57,180 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-12 15:40:57,180 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-12 15:40:57,180 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-12 15:40:57,180 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-12 15:40:57,180 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-12 15:40:57,180 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 15:40:57,180 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-12 15:40:57,180 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-12 15:40:57,180 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-12 15:40:57,181 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 15:40:57,181 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-12 15:40:57,181 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-12 15:40:57,181 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-12 15:40:57,181 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-12 15:40:57,181 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-12 15:40:57,181 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-12 15:40:57,181 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-12 15:40:57,181 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-12 15:40:57,181 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-12 15:40:57,182 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-12 15:40:57,182 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-12 15:40:57,182 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-12 15:40:57,182 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-12 15:40:57,182 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-12 15:40:57,182 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-12 15:40:57,182 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-12 15:40:57,182 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-12 15:40:57,182 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-12 15:40:57,182 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-12 15:40:57,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-12 15:40:57,183 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-12 15:40:57,183 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-12 15:40:57,183 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-12 15:40:57,183 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-12 15:40:57,183 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-12 15:40:57,183 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-12 15:40:57,183 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-12 15:40:57,183 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-12 15:40:57,183 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-12 15:40:57,184 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-12 15:40:57,184 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-12 15:40:57,184 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-12 15:40:57,184 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-12 15:40:57,184 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-12 15:40:57,184 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-12 15:40:57,185 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-12 15:40:57,185 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-12 15:40:57,186 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-12 15:40:57,192 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-12 15:40:57,192 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 15:40:57,192 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2020-10-12 15:40:57,193 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_slave [2020-10-12 15:40:57,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-12 15:40:57,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-12 15:40:57,193 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_master [2020-10-12 15:40:57,193 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_slave [2020-10-12 15:40:57,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-12 15:40:57,194 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_generic [2020-10-12 15:40:57,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-12 15:40:57,194 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-12 15:40:57,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-12 15:40:57,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 15:40:57,195 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_slave [2020-10-12 15:40:57,195 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_slave [2020-10-12 15:40:57,202 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_nested_lists [2020-10-12 15:40:57,202 INFO L130 BoogieDeclarations]: Found specification of procedure dll_reinit_nested_lists [2020-10-12 15:40:57,202 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_master [2020-10-12 15:40:57,202 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_master [2020-10-12 15:40:57,203 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_master [2020-10-12 15:40:57,203 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_base [2020-10-12 15:40:57,204 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_full [2020-10-12 15:40:57,204 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_dangling [2020-10-12 15:40:57,204 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_init [2020-10-12 15:40:57,204 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 15:40:57,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 15:40:57,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 15:40:58,003 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 15:40:58,004 INFO L295 CfgBuilder]: Removed 38 assume(true) statements. [2020-10-12 15:40:58,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 03:40:58 BoogieIcfgContainer [2020-10-12 15:40:58,009 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 15:40:58,010 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 15:40:58,010 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 15:40:58,013 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 15:40:58,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 03:40:56" (1/3) ... [2020-10-12 15:40:58,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50d83251 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 03:40:58, skipping insertion in model container [2020-10-12 15:40:58,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:40:56" (2/3) ... [2020-10-12 15:40:58,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50d83251 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 03:40:58, skipping insertion in model container [2020-10-12 15:40:58,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 03:40:58" (3/3) ... [2020-10-12 15:40:58,017 INFO L109 eAbstractionObserver]: Analyzing ICFG dll_of_dll-1.i [2020-10-12 15:40:58,027 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 15:40:58,034 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 15:40:58,046 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 15:40:58,070 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 15:40:58,070 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 15:40:58,070 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 15:40:58,070 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 15:40:58,070 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 15:40:58,071 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 15:40:58,071 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 15:40:58,071 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 15:40:58,094 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states. [2020-10-12 15:40:58,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-12 15:40:58,103 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:40:58,104 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-12 15:40:58,105 INFO L427 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:40:58,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:40:58,111 INFO L82 PathProgramCache]: Analyzing trace with hash -1405399524, now seen corresponding path program 1 times [2020-10-12 15:40:58,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:40:58,121 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [612255457] [2020-10-12 15:40:58,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:40:58,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:58,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:58,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:58,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:58,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:58,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:59,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:01,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:02,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:03,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:41:03,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-12 15:41:03,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 15:41:03,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-12 15:41:03,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:41:03,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-12 15:41:03,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-12 15:41:03,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-12 15:41:03,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 15:41:03,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:41:03,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:41:03,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:03,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:41:03,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:41:03,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:41:03,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:41:03,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:41:03,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:41:03,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:41:03,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:41:03,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:41:03,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 15:41:03,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:41:03,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:03,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:03,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:03,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:03,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:04,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:05,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:05,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:08,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:41:08,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-12 15:41:08,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 15:41:08,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-12 15:41:08,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:41:08,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-12 15:41:08,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:41:08,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-12 15:41:08,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:41:08,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:41:08,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:41:08,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:08,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:08,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:08,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:09,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:09,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:09,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:09,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:11,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:13,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:41:13,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-12 15:41:13,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-12 15:41:13,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 15:41:13,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:41:13,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-12 15:41:13,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:41:13,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-12 15:41:13,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-12 15:41:13,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 15:41:13,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:41:13,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:13,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:13,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:41:13,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-12 15:41:13,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:41:13,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-12 15:41:13,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:41:13,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 15:41:13,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:41:13,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-12 15:41:13,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:41:13,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 15:41:13,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:41:13,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:13,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:13,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:41:13,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-12 15:41:13,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:41:13,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-12 15:41:13,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:41:13,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 15:41:13,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:41:13,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 15:41:13,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:41:14,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 15:41:14,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:41:14,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:14,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:14,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:41:14,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 15:41:14,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:41:14,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 15:41:14,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:41:14,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 15:41:14,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:41:14,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 15:41:14,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:41:14,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 15:41:14,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:41:14,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:14,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:14,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:41:14,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-12 15:41:14,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:41:14,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-12 15:41:14,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:41:14,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-12 15:41:14,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:41:14,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-12 15:41:14,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:41:14,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 15:41:14,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:41:14,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:14,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:14,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:41:14,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-12 15:41:14,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:41:14,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-12 15:41:14,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:41:14,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 15:41:14,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:41:14,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-12 15:41:14,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:41:14,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 15:41:14,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:41:14,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:14,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:14,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:41:14,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 15:41:14,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:41:14,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 15:41:14,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:41:14,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:41:14,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:41:14,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 15:41:14,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:41:15,045 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-12 15:41:15,047 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [612255457] [2020-10-12 15:41:15,048 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:41:15,049 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2020-10-12 15:41:15,050 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005930752] [2020-10-12 15:41:15,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-10-12 15:41:15,057 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:41:15,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-10-12 15:41:15,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=977, Unknown=0, NotChecked=0, Total=1056 [2020-10-12 15:41:15,076 INFO L87 Difference]: Start difference. First operand 169 states. Second operand 33 states. [2020-10-12 15:41:18,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:41:18,973 INFO L93 Difference]: Finished difference Result 474 states and 806 transitions. [2020-10-12 15:41:18,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-12 15:41:18,980 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 59 [2020-10-12 15:41:18,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:41:18,995 INFO L225 Difference]: With dead ends: 474 [2020-10-12 15:41:18,996 INFO L226 Difference]: Without dead ends: 293 [2020-10-12 15:41:19,004 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 515 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=289, Invalid=3017, Unknown=0, NotChecked=0, Total=3306 [2020-10-12 15:41:19,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-10-12 15:41:19,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 217. [2020-10-12 15:41:19,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-10-12 15:41:19,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 264 transitions. [2020-10-12 15:41:19,084 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 264 transitions. Word has length 59 [2020-10-12 15:41:19,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:41:19,084 INFO L479 AbstractCegarLoop]: Abstraction has 217 states and 264 transitions. [2020-10-12 15:41:19,084 INFO L480 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-10-12 15:41:19,085 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 264 transitions. [2020-10-12 15:41:19,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-12 15:41:19,088 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:41:19,088 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-12 15:41:19,088 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 15:41:19,089 INFO L427 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:41:19,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:41:19,089 INFO L82 PathProgramCache]: Analyzing trace with hash 65445028, now seen corresponding path program 1 times [2020-10-12 15:41:19,089 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:41:19,090 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1059711423] [2020-10-12 15:41:19,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:41:19,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:41:19,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:19,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:19,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:19,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:21,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:21,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:23,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:41:23,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-12 15:41:23,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 15:41:23,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4317 [2020-10-12 15:41:23,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:41:23,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-12 15:41:23,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-12 15:41:23,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 15:41:23,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:41:23,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:41:23,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:41:23,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:23,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:41:23,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:41:23,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:41:23,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:41:23,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:41:23,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:41:23,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:41:23,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:41:23,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:41:23,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 15:41:23,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:41:23,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:23,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:23,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:23,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:26,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:27,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:41:27,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-12 15:41:27,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 15:41:27,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4016 [2020-10-12 15:41:27,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:41:27,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-12 15:41:27,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:41:27,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-12 15:41:27,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:41:27,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:41:27,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:41:27,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:27,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:27,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:27,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:29,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:30,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:41:30,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 15:41:30,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 15:41:30,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2934 [2020-10-12 15:41:30,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:41:30,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-12 15:41:30,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:41:30,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-12 15:41:30,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:41:30,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 15:41:30,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:41:30,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:30,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:41:30,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-12 15:41:30,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:41:30,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-12 15:41:30,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:41:30,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 15:41:30,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:41:30,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-12 15:41:30,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:41:30,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 15:41:30,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:41:30,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:30,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:41:30,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-12 15:41:30,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:41:30,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-12 15:41:30,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:41:30,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 15:41:30,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:41:30,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 15:41:30,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:41:31,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 15:41:31,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:41:31,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:31,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:41:31,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 15:41:31,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:41:31,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 15:41:31,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:41:31,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 15:41:31,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:41:31,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 15:41:31,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:41:31,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 15:41:31,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:41:31,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:31,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:31,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:41:31,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-12 15:41:31,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:41:31,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-10-12 15:41:31,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:41:31,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-12 15:41:31,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:41:31,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-12 15:41:31,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:41:31,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 15:41:31,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:41:31,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:31,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:41:31,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-12 15:41:31,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:41:31,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-12 15:41:31,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:41:31,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 15:41:31,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:41:31,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-12 15:41:31,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:41:31,698 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 36 [2020-10-12 15:41:31,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 15:41:31,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:41:31,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:31,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:41:31,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 15:41:31,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:41:31,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 15:41:31,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:41:31,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:41:31,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:41:31,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 15:41:31,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:41:31,927 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-12 15:41:31,927 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1059711423] [2020-10-12 15:41:31,928 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:41:31,928 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2020-10-12 15:41:31,928 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575294508] [2020-10-12 15:41:31,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-10-12 15:41:31,930 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:41:31,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-10-12 15:41:31,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=982, Unknown=0, NotChecked=0, Total=1056 [2020-10-12 15:41:31,931 INFO L87 Difference]: Start difference. First operand 217 states and 264 transitions. Second operand 33 states. [2020-10-12 15:41:36,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:41:36,641 INFO L93 Difference]: Finished difference Result 346 states and 441 transitions. [2020-10-12 15:41:36,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-12 15:41:36,642 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 63 [2020-10-12 15:41:36,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:41:36,647 INFO L225 Difference]: With dead ends: 346 [2020-10-12 15:41:36,647 INFO L226 Difference]: Without dead ends: 343 [2020-10-12 15:41:36,649 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=231, Invalid=2739, Unknown=0, NotChecked=0, Total=2970 [2020-10-12 15:41:36,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2020-10-12 15:41:36,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 284. [2020-10-12 15:41:36,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2020-10-12 15:41:36,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 354 transitions. [2020-10-12 15:41:36,693 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 354 transitions. Word has length 63 [2020-10-12 15:41:36,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:41:36,694 INFO L479 AbstractCegarLoop]: Abstraction has 284 states and 354 transitions. [2020-10-12 15:41:36,694 INFO L480 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-10-12 15:41:36,694 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 354 transitions. [2020-10-12 15:41:36,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-12 15:41:36,697 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:41:36,697 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-12 15:41:36,697 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 15:41:36,697 INFO L427 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:41:36,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:41:36,698 INFO L82 PathProgramCache]: Analyzing trace with hash -75103582, now seen corresponding path program 1 times [2020-10-12 15:41:36,698 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:41:36,698 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1031746372] [2020-10-12 15:41:36,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:41:36,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:41:36,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:36,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:36,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:37,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:37,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:39,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:39,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:41,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:41:41,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-12 15:41:41,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 15:41:41,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-12 15:41:41,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:41:41,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-12 15:41:41,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-12 15:41:41,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 15:41:41,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:41:41,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:41:41,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:41:41,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:41,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:41:41,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:41:41,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:41:41,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:41:41,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:41:41,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:41:41,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:41:41,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:41:41,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:41:41,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-12 15:41:41,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:41:41,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:41,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:42,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:42,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:42,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:42,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:43,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:46,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:41:46,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-12 15:41:46,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 15:41:46,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 15:41:46,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:41:46,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-12 15:41:46,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:41:46,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-12 15:41:46,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:41:46,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:41:46,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:41:46,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:46,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:47,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:47,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:47,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:50,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:41:50,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 15:41:50,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 15:41:50,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3370 [2020-10-12 15:41:50,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:41:50,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-12 15:41:50,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:41:50,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-12 15:41:50,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:41:50,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 15:41:50,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:41:50,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:50,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:50,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:41:50,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-12 15:41:50,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:41:50,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-12 15:41:50,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:41:50,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 15:41:50,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:41:50,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-12 15:41:50,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:41:50,941 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2020-10-12 15:41:50,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 15:41:50,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:41:50,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:41:51,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:41:51,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-12 15:41:51,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:41:51,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-10-12 15:41:51,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:41:51,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 15:41:51,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:41:51,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-12 15:41:51,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:41:51,121 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 15:41:51,122 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: No Interpolants at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.getInterpolants(InterpolatingTraceCheckCraig.java:272) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:398) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:378) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:378) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:378) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-10-12 15:41:51,127 INFO L168 Benchmark]: Toolchain (without parser) took 54973.12 ms. Allocated memory was 146.3 MB in the beginning and 856.7 MB in the end (delta: 710.4 MB). Free memory was 100.9 MB in the beginning and 330.7 MB in the end (delta: -229.8 MB). Peak memory consumption was 480.6 MB. Max. memory is 7.1 GB. [2020-10-12 15:41:51,128 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 146.3 MB. Free memory was 120.9 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-12 15:41:51,129 INFO L168 Benchmark]: CACSL2BoogieTranslator took 814.49 ms. Allocated memory was 146.3 MB in the beginning and 204.5 MB in the end (delta: 58.2 MB). Free memory was 100.7 MB in the beginning and 164.2 MB in the end (delta: -63.5 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. [2020-10-12 15:41:51,130 INFO L168 Benchmark]: Boogie Preprocessor took 120.71 ms. Allocated memory is still 204.5 MB. Free memory was 164.2 MB in the beginning and 160.1 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-10-12 15:41:51,131 INFO L168 Benchmark]: RCFGBuilder took 918.46 ms. Allocated memory was 204.5 MB in the beginning and 237.0 MB in the end (delta: 32.5 MB). Free memory was 160.1 MB in the beginning and 201.6 MB in the end (delta: -41.5 MB). Peak memory consumption was 76.0 MB. Max. memory is 7.1 GB. [2020-10-12 15:41:51,131 INFO L168 Benchmark]: TraceAbstraction took 53115.08 ms. Allocated memory was 237.0 MB in the beginning and 856.7 MB in the end (delta: 619.7 MB). Free memory was 201.6 MB in the beginning and 330.7 MB in the end (delta: -129.1 MB). Peak memory consumption was 490.6 MB. Max. memory is 7.1 GB. [2020-10-12 15:41:51,136 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 146.3 MB. Free memory was 120.9 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 814.49 ms. Allocated memory was 146.3 MB in the beginning and 204.5 MB in the end (delta: 58.2 MB). Free memory was 100.7 MB in the beginning and 164.2 MB in the end (delta: -63.5 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.71 ms. Allocated memory is still 204.5 MB. Free memory was 164.2 MB in the beginning and 160.1 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 918.46 ms. Allocated memory was 204.5 MB in the beginning and 237.0 MB in the end (delta: 32.5 MB). Free memory was 160.1 MB in the beginning and 201.6 MB in the end (delta: -41.5 MB). Peak memory consumption was 76.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 53115.08 ms. Allocated memory was 237.0 MB in the beginning and 856.7 MB in the end (delta: 619.7 MB). Free memory was 201.6 MB in the beginning and 330.7 MB in the end (delta: -129.1 MB). Peak memory consumption was 490.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: No Interpolants de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: No Interpolants: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.getInterpolants(InterpolatingTraceCheckCraig.java:272) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...