/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=0.8 --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 07:48:27,744 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:48:27,748 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:48:27,775 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:48:27,775 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:48:27,777 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:48:27,778 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:48:27,780 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:48:27,782 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:48:27,783 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:48:27,784 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:48:27,786 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:48:27,786 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:48:27,787 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:48:27,789 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:48:27,790 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:48:27,791 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:48:27,793 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:48:27,795 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:48:27,797 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:48:27,798 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:48:27,800 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:48:27,801 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:48:27,802 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:48:27,804 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:48:27,804 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:48:27,805 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:48:27,806 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:48:27,806 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:48:27,807 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:48:27,807 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:48:27,808 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:48:27,809 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:48:27,810 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:48:27,811 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:48:27,812 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:48:27,812 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:48:27,813 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:48:27,813 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:48:27,814 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:48:27,815 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:48:27,816 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 07:48:27,844 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:48:27,844 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:48:27,845 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:48:27,846 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:48:27,846 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:48:27,846 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:48:27,846 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:48:27,847 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:48:27,847 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:48:27,847 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:48:27,847 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:48:27,847 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:48:27,848 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:48:27,848 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:48:27,848 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:48:27,848 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:48:27,848 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:48:27,849 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:48:27,849 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:48:27,849 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:48:27,849 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:48:27,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:48:27,850 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:48:27,850 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:48:27,850 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:48:27,850 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:48:27,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:48:27,851 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:48:27,851 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:48:27,851 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=0.8;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=0.8;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=0.8;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=0.8;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=0.8;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=0.8;log-additional-information=true; [2020-09-25 07:48:28,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:48:28,397 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:48:28,402 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:48:28,404 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:48:28,406 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:48:28,407 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i [2020-09-25 07:48:28,502 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bb13a35fe/c7b373dd807d441e929ef4ac2c084474/FLAGd68f66ff3 [2020-09-25 07:48:29,216 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:48:29,217 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i [2020-09-25 07:48:29,232 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bb13a35fe/c7b373dd807d441e929ef4ac2c084474/FLAGd68f66ff3 [2020-09-25 07:48:29,427 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bb13a35fe/c7b373dd807d441e929ef4ac2c084474 [2020-09-25 07:48:29,441 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:48:29,447 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:48:29,449 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:48:29,449 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:48:29,453 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:48:29,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:48:29" (1/1) ... [2020-09-25 07:48:29,459 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bd36ef8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:48:29, skipping insertion in model container [2020-09-25 07:48:29,460 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:48:29" (1/1) ... [2020-09-25 07:48:29,469 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:48:29,518 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:48:30,042 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:48:30,058 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:48:30,163 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:48:30,225 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:48:30,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:48:30 WrapperNode [2020-09-25 07:48:30,225 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:48:30,226 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:48:30,226 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:48:30,227 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:48:30,244 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:48:30" (1/1) ... [2020-09-25 07:48:30,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:48:30" (1/1) ... [2020-09-25 07:48:30,266 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:48:30" (1/1) ... [2020-09-25 07:48:30,267 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:48:30" (1/1) ... [2020-09-25 07:48:30,296 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:48:30" (1/1) ... [2020-09-25 07:48:30,310 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:48:30" (1/1) ... [2020-09-25 07:48:30,316 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:48:30" (1/1) ... [2020-09-25 07:48:30,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:48:30,326 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:48:30,326 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:48:30,326 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:48:30,327 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:48:30" (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 07:48:30,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:48:30,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:48:30,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-09-25 07:48:30,404 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-09-25 07:48:30,405 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-09-25 07:48:30,405 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2020-09-25 07:48:30,405 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_slave [2020-09-25 07:48:30,405 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_master [2020-09-25 07:48:30,405 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_slave [2020-09-25 07:48:30,406 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_generic [2020-09-25 07:48:30,406 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_slave [2020-09-25 07:48:30,406 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_slave [2020-09-25 07:48:30,406 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_nested_lists [2020-09-25 07:48:30,406 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_reinit_nested_lists [2020-09-25 07:48:30,407 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_master [2020-09-25 07:48:30,407 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_master [2020-09-25 07:48:30,407 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_master [2020-09-25 07:48:30,407 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_base [2020-09-25 07:48:30,408 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_full [2020-09-25 07:48:30,408 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_dangling [2020-09-25 07:48:30,408 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_init [2020-09-25 07:48:30,408 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:48:30,409 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:48:30,409 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 07:48:30,409 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 07:48:30,409 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 07:48:30,409 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 07:48:30,410 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 07:48:30,410 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 07:48:30,410 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 07:48:30,410 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 07:48:30,410 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 07:48:30,410 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 07:48:30,411 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 07:48:30,411 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 07:48:30,411 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 07:48:30,411 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 07:48:30,411 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 07:48:30,411 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 07:48:30,412 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-09-25 07:48:30,412 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-09-25 07:48:30,412 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 07:48:30,412 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 07:48:30,412 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 07:48:30,412 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 07:48:30,413 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 07:48:30,413 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 07:48:30,413 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 07:48:30,413 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 07:48:30,413 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 07:48:30,414 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 07:48:30,414 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 07:48:30,414 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 07:48:30,414 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 07:48:30,414 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 07:48:30,414 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 07:48:30,415 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 07:48:30,415 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 07:48:30,415 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 07:48:30,415 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 07:48:30,415 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 07:48:30,415 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 07:48:30,416 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 07:48:30,416 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 07:48:30,416 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 07:48:30,416 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 07:48:30,416 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 07:48:30,416 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 07:48:30,417 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 07:48:30,417 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 07:48:30,417 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 07:48:30,417 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 07:48:30,417 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 07:48:30,418 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 07:48:30,418 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 07:48:30,418 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:48:30,418 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 07:48:30,418 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 07:48:30,418 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:48:30,419 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 07:48:30,419 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 07:48:30,419 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 07:48:30,419 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 07:48:30,419 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-25 07:48:30,419 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 07:48:30,420 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 07:48:30,420 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-25 07:48:30,420 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 07:48:30,420 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 07:48:30,420 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-25 07:48:30,420 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 07:48:30,420 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 07:48:30,421 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 07:48:30,421 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 07:48:30,421 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 07:48:30,421 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 07:48:30,421 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 07:48:30,421 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 07:48:30,422 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 07:48:30,422 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 07:48:30,422 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 07:48:30,422 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 07:48:30,422 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 07:48:30,422 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 07:48:30,422 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 07:48:30,423 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 07:48:30,423 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 07:48:30,423 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 07:48:30,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 07:48:30,423 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 07:48:30,423 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 07:48:30,424 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 07:48:30,424 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 07:48:30,424 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 07:48:30,424 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 07:48:30,424 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 07:48:30,424 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 07:48:30,425 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 07:48:30,425 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 07:48:30,425 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 07:48:30,425 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 07:48:30,425 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 07:48:30,425 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 07:48:30,426 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 07:48:30,426 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 07:48:30,426 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 07:48:30,426 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-25 07:48:30,426 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 07:48:30,427 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:48:30,427 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2020-09-25 07:48:30,427 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_slave [2020-09-25 07:48:30,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:48:30,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:48:30,428 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_master [2020-09-25 07:48:30,428 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_slave [2020-09-25 07:48:30,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:48:30,428 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_generic [2020-09-25 07:48:30,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:48:30,428 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-09-25 07:48:30,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 07:48:30,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:48:30,429 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_slave [2020-09-25 07:48:30,429 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_slave [2020-09-25 07:48:30,429 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_nested_lists [2020-09-25 07:48:30,429 INFO L130 BoogieDeclarations]: Found specification of procedure dll_reinit_nested_lists [2020-09-25 07:48:30,429 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_master [2020-09-25 07:48:30,430 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_master [2020-09-25 07:48:30,430 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_master [2020-09-25 07:48:30,430 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_base [2020-09-25 07:48:30,430 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_full [2020-09-25 07:48:30,430 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_dangling [2020-09-25 07:48:30,430 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_init [2020-09-25 07:48:30,431 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:48:30,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:48:30,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:48:31,334 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:48:31,334 INFO L295 CfgBuilder]: Removed 38 assume(true) statements. [2020-09-25 07:48:31,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:48:31 BoogieIcfgContainer [2020-09-25 07:48:31,341 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:48:31,343 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:48:31,343 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:48:31,347 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:48:31,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:48:29" (1/3) ... [2020-09-25 07:48:31,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62726786 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:48:31, skipping insertion in model container [2020-09-25 07:48:31,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:48:30" (2/3) ... [2020-09-25 07:48:31,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62726786 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:48:31, skipping insertion in model container [2020-09-25 07:48:31,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:48:31" (3/3) ... [2020-09-25 07:48:31,351 INFO L109 eAbstractionObserver]: Analyzing ICFG dll_of_dll-2.i [2020-09-25 07:48:31,364 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:48:31,376 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:48:31,399 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:48:31,433 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:48:31,434 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:48:31,434 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:48:31,434 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:48:31,434 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:48:31,434 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:48:31,434 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:48:31,434 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:48:31,463 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states. [2020-09-25 07:48:31,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 07:48:31,477 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:48:31,478 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 07:48:31,479 INFO L427 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:48:31,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:48:31,487 INFO L82 PathProgramCache]: Analyzing trace with hash 575468621, now seen corresponding path program 1 times [2020-09-25 07:48:31,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:48:31,499 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [586617710] [2020-09-25 07:48:31,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:48:31,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:31,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:32,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:32,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:33,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:36,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:36,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-25 07:48:36,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:48:36,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-25 07:48:36,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:36,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:36,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:36,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-09-25 07:48:36,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:36,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 07:48:36,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:36,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:36,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:36,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:36,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:48:36,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:36,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 07:48:36,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:36,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:36,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:36,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:36,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:36,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:36,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 07:48:36,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:36,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:36,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:37,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:37,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:38,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:41,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:41,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-25 07:48:41,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:48:41,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-09-25 07:48:41,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:41,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:41,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:41,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-09-25 07:48:41,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:41,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:41,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:41,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:41,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:42,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:42,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:45,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:45,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:46,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:46,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 07:48:46,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:48:46,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 07:48:46,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:46,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:46,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:46,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-09-25 07:48:46,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:46,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:46,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:48:46,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:46,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:47,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:47,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 07:48:47,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:47,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 07:48:47,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:47,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:47,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:47,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:47,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:47,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 07:48:47,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:48:47,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:47,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:47,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:47,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 07:48:47,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:47,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 07:48:47,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:47,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:47,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:47,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:47,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:47,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:48:47,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:48:47,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:47,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:47,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:47,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 07:48:47,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:47,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 07:48:47,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:47,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:47,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:47,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:47,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:47,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:47,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 07:48:47,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:47,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:47,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:47,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 07:48:47,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:47,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 07:48:47,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:47,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:47,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:47,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:47,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:47,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:47,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:48:47,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:47,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:47,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:47,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 07:48:47,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:47,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 07:48:47,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:47,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:47,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:47,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:47,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:47,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:47,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:48:47,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:47,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:47,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:47,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 07:48:47,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:47,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:48:47,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:47,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:47,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:47,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:47,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:47,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:47,289 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 07:48:47,290 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [586617710] [2020-09-25 07:48:47,293 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:48:47,294 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:48:47,295 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946500133] [2020-09-25 07:48:47,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:48:47,306 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:48:47,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:48:47,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:48:47,333 INFO L87 Difference]: Start difference. First operand 276 states. Second operand 4 states. [2020-09-25 07:48:48,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:48:48,299 INFO L93 Difference]: Finished difference Result 568 states and 767 transitions. [2020-09-25 07:48:48,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:48:48,305 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 85 [2020-09-25 07:48:48,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:48:48,341 INFO L225 Difference]: With dead ends: 568 [2020-09-25 07:48:48,341 INFO L226 Difference]: Without dead ends: 275 [2020-09-25 07:48:48,354 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 07:48:48,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2020-09-25 07:48:48,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 255. [2020-09-25 07:48:48,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-09-25 07:48:48,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 284 transitions. [2020-09-25 07:48:48,497 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 284 transitions. Word has length 85 [2020-09-25 07:48:48,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:48:48,498 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 284 transitions. [2020-09-25 07:48:48,498 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:48:48,498 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 284 transitions. [2020-09-25 07:48:48,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-25 07:48:48,510 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:48:48,511 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 07:48:48,511 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:48:48,511 INFO L427 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:48:48,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:48:48,512 INFO L82 PathProgramCache]: Analyzing trace with hash -1893520380, now seen corresponding path program 1 times [2020-09-25 07:48:48,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:48:48,512 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [801737901] [2020-09-25 07:48:48,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:48:48,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:48,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:48,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:48,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:49,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:53,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:53,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-09-25 07:48:53,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:48:53,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-09-25 07:48:53,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:53,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:53,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:48:53,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 07:48:53,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 07:48:53,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:48:53,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:53,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:53,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:53,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:53,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:48:53,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:53,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:48:53,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:53,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:53,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:53,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:53,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:53,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:53,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 07:48:53,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:53,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:53,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:54,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:55,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:58,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:58,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-25 07:48:58,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:48:58,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 07:48:58,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:58,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:58,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:48:58,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 07:48:58,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 07:48:58,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:58,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:58,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:58,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:58,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:58,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:59,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:03,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:03,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 07:49:03,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:49:03,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 07:49:03,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:03,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:03,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:49:03,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:49:03,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 07:49:03,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:49:03,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:49:03,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:03,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:03,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:03,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 07:49:03,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:03,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-25 07:49:03,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:03,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:03,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:49:03,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:03,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 07:49:03,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:03,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:49:03,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:03,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:03,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:03,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 07:49:03,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:03,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 07:49:03,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:03,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:03,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:03,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:03,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:03,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:03,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:49:03,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:03,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:03,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:03,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 07:49:03,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:03,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 07:49:03,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:03,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:03,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:03,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:03,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:03,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:04,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 07:49:04,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:04,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:04,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:04,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 07:49:04,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:04,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-09-25 07:49:04,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:04,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:04,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:49:04,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:04,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 07:49:04,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:04,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:49:04,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:04,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:04,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:04,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 07:49:04,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:04,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-25 07:49:04,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:04,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:04,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:49:04,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:04,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 07:49:04,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:04,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 07:49:04,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:04,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:04,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:04,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 07:49:04,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:04,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 07:49:04,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:04,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:04,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:04,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:04,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:04,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:04,300 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-09-25 07:49:04,300 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [801737901] [2020-09-25 07:49:04,301 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:49:04,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 07:49:04,301 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669086757] [2020-09-25 07:49:04,304 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 07:49:04,304 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:49:04,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 07:49:04,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:49:04,305 INFO L87 Difference]: Start difference. First operand 255 states and 284 transitions. Second operand 7 states. [2020-09-25 07:49:05,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:49:05,571 INFO L93 Difference]: Finished difference Result 542 states and 621 transitions. [2020-09-25 07:49:05,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 07:49:05,572 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 87 [2020-09-25 07:49:05,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:49:05,579 INFO L225 Difference]: With dead ends: 542 [2020-09-25 07:49:05,579 INFO L226 Difference]: Without dead ends: 296 [2020-09-25 07:49:05,585 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-09-25 07:49:05,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-09-25 07:49:05,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 276. [2020-09-25 07:49:05,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-09-25 07:49:05,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 307 transitions. [2020-09-25 07:49:05,613 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 307 transitions. Word has length 87 [2020-09-25 07:49:05,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:49:05,613 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 307 transitions. [2020-09-25 07:49:05,613 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 07:49:05,614 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 307 transitions. [2020-09-25 07:49:05,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-09-25 07:49:05,616 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:49:05,616 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 07:49:05,617 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:49:05,617 INFO L427 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:49:05,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:49:05,617 INFO L82 PathProgramCache]: Analyzing trace with hash 1671014528, now seen corresponding path program 1 times [2020-09-25 07:49:05,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:49:05,618 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [80730304] [2020-09-25 07:49:05,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:49:05,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:05,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:06,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:06,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:06,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:08,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:10,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:10,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 296 [2020-09-25 07:49:10,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:49:10,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5153 [2020-09-25 07:49:10,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:10,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:10,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-25 07:49:10,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 07:49:10,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-09-25 07:49:10,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:11,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:49:11,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:11,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:11,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:11,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:49:11,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:11,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:49:11,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:11,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:11,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:11,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:11,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:11,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:11,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 07:49:11,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:11,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:11,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:13,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:16,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:16,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 270 [2020-09-25 07:49:16,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:49:16,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-25 07:49:16,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:16,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:16,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-25 07:49:16,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 07:49:16,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-09-25 07:49:16,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1