/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=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:57:11,927 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:57:11,931 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:57:11,958 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:57:11,958 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:57:11,960 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:57:11,961 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:57:11,963 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:57:11,965 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:57:11,966 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:57:11,967 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:57:11,969 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:57:11,969 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:57:11,970 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:57:11,971 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:57:11,972 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:57:11,973 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:57:11,974 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:57:11,976 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:57:11,979 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:57:11,982 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:57:11,986 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:57:11,987 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:57:11,988 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:57:11,995 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:57:11,995 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:57:11,995 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:57:11,998 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:57:11,998 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:57:12,002 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:57:12,003 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:57:12,004 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:57:12,005 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:57:12,007 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:57:12,014 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:57:12,015 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:57:12,016 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:57:12,019 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:57:12,019 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:57:12,020 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:57:12,022 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:57:12,023 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 00:57:12,074 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:57:12,074 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:57:12,077 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:57:12,077 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:57:12,077 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:57:12,077 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:57:12,078 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:57:12,078 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:57:12,078 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:57:12,078 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:57:12,079 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:57:12,080 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:57:12,080 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:57:12,080 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:57:12,081 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:57:12,081 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:57:12,081 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:57:12,081 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:57:12,082 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:57:12,082 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:57:12,082 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:57:12,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:57:12,083 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:57:12,083 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:57:12,083 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:57:12,083 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:57:12,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:57:12,084 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:57:12,084 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:57:12,084 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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;log-additional-information=true; [2020-09-25 00:57:12,602 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:57:12,620 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:57:12,624 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:57:12,626 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:57:12,626 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:57:12,627 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-1.i [2020-09-25 00:57:12,731 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/180b238db/b3ae9fb9f14b4e759bcf7ea715f290d4/FLAG1a435a0f0 [2020-09-25 00:57:13,366 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:57:13,367 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/heap-manipulation/dll_of_dll-1.i [2020-09-25 00:57:13,387 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/180b238db/b3ae9fb9f14b4e759bcf7ea715f290d4/FLAG1a435a0f0 [2020-09-25 00:57:13,617 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/180b238db/b3ae9fb9f14b4e759bcf7ea715f290d4 [2020-09-25 00:57:13,630 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:57:13,636 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:57:13,638 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:57:13,638 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:57:13,642 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:57:13,643 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:57:13" (1/1) ... [2020-09-25 00:57:13,648 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f7beb14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:57:13, skipping insertion in model container [2020-09-25 00:57:13,649 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:57:13" (1/1) ... [2020-09-25 00:57:13,658 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:57:13,715 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:57:14,304 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:57:14,320 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:57:14,379 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:57:14,443 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:57:14,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:57:14 WrapperNode [2020-09-25 00:57:14,443 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:57:14,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:57:14,445 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:57:14,445 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:57:14,467 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:57:14" (1/1) ... [2020-09-25 00:57:14,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:57:14" (1/1) ... [2020-09-25 00:57:14,490 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:57:14" (1/1) ... [2020-09-25 00:57:14,491 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:57:14" (1/1) ... [2020-09-25 00:57:14,519 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:57:14" (1/1) ... [2020-09-25 00:57:14,534 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:57:14" (1/1) ... [2020-09-25 00:57:14,539 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:57:14" (1/1) ... [2020-09-25 00:57:14,548 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:57:14,549 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:57:14,549 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:57:14,549 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:57:14,551 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:57:14" (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 00:57:14,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:57:14,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:57:14,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-09-25 00:57:14,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-09-25 00:57:14,642 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-09-25 00:57:14,642 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2020-09-25 00:57:14,642 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_slave [2020-09-25 00:57:14,643 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_master [2020-09-25 00:57:14,644 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_slave [2020-09-25 00:57:14,644 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_generic [2020-09-25 00:57:14,644 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_slave [2020-09-25 00:57:14,644 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_slave [2020-09-25 00:57:14,644 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_nested_lists [2020-09-25 00:57:14,645 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_reinit_nested_lists [2020-09-25 00:57:14,645 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_master [2020-09-25 00:57:14,646 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_master [2020-09-25 00:57:14,646 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_master [2020-09-25 00:57:14,646 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_base [2020-09-25 00:57:14,646 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_full [2020-09-25 00:57:14,647 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_dangling [2020-09-25 00:57:14,648 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_init [2020-09-25 00:57:14,648 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:57:14,649 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:57:14,649 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 00:57:14,650 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 00:57:14,651 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 00:57:14,652 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 00:57:14,652 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 00:57:14,652 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 00:57:14,652 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 00:57:14,652 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 00:57:14,652 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 00:57:14,652 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 00:57:14,652 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 00:57:14,653 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 00:57:14,653 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 00:57:14,653 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 00:57:14,653 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 00:57:14,653 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 00:57:14,653 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-09-25 00:57:14,653 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-09-25 00:57:14,654 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 00:57:14,654 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 00:57:14,654 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 00:57:14,654 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 00:57:14,654 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 00:57:14,654 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 00:57:14,655 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 00:57:14,655 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 00:57:14,655 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 00:57:14,655 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 00:57:14,655 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 00:57:14,655 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 00:57:14,656 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 00:57:14,656 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 00:57:14,656 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 00:57:14,656 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 00:57:14,656 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 00:57:14,657 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 00:57:14,657 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 00:57:14,657 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 00:57:14,657 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 00:57:14,657 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 00:57:14,657 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 00:57:14,657 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 00:57:14,658 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 00:57:14,658 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 00:57:14,658 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 00:57:14,658 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 00:57:14,658 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 00:57:14,658 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 00:57:14,659 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 00:57:14,659 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 00:57:14,659 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 00:57:14,659 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 00:57:14,659 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 00:57:14,659 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 00:57:14,660 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 00:57:14,660 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 00:57:14,660 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 00:57:14,660 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 00:57:14,660 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 00:57:14,660 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 00:57:14,661 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-25 00:57:14,661 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 00:57:14,661 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 00:57:14,661 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-25 00:57:14,661 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 00:57:14,661 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 00:57:14,662 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-25 00:57:14,662 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 00:57:14,662 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 00:57:14,662 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 00:57:14,662 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 00:57:14,662 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 00:57:14,662 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 00:57:14,663 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 00:57:14,663 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 00:57:14,663 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 00:57:14,663 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 00:57:14,663 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 00:57:14,663 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 00:57:14,664 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 00:57:14,664 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 00:57:14,664 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 00:57:14,664 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 00:57:14,664 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 00:57:14,664 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 00:57:14,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 00:57:14,665 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 00:57:14,665 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 00:57:14,665 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 00:57:14,665 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 00:57:14,665 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 00:57:14,665 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 00:57:14,665 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 00:57:14,666 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 00:57:14,666 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 00:57:14,666 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 00:57:14,666 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 00:57:14,666 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 00:57:14,666 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 00:57:14,667 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 00:57:14,667 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 00:57:14,667 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 00:57:14,667 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 00:57:14,667 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-25 00:57:14,667 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 00:57:14,668 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:57:14,668 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2020-09-25 00:57:14,668 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_slave [2020-09-25 00:57:14,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 00:57:14,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 00:57:14,669 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_master [2020-09-25 00:57:14,669 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_slave [2020-09-25 00:57:14,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 00:57:14,669 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_generic [2020-09-25 00:57:14,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 00:57:14,669 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-09-25 00:57:14,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 00:57:14,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 00:57:14,670 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_slave [2020-09-25 00:57:14,670 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_slave [2020-09-25 00:57:14,670 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_nested_lists [2020-09-25 00:57:14,670 INFO L130 BoogieDeclarations]: Found specification of procedure dll_reinit_nested_lists [2020-09-25 00:57:14,670 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_master [2020-09-25 00:57:14,671 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_master [2020-09-25 00:57:14,671 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_master [2020-09-25 00:57:14,671 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_base [2020-09-25 00:57:14,671 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_full [2020-09-25 00:57:14,671 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_dangling [2020-09-25 00:57:14,672 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_init [2020-09-25 00:57:14,672 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:57:14,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:57:14,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:57:15,674 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:57:15,674 INFO L295 CfgBuilder]: Removed 38 assume(true) statements. [2020-09-25 00:57:15,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:57:15 BoogieIcfgContainer [2020-09-25 00:57:15,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:57:15,683 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:57:15,683 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:57:15,687 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:57:15,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:57:13" (1/3) ... [2020-09-25 00:57:15,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@491c2121 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:57:15, skipping insertion in model container [2020-09-25 00:57:15,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:57:14" (2/3) ... [2020-09-25 00:57:15,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@491c2121 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:57:15, skipping insertion in model container [2020-09-25 00:57:15,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:57:15" (3/3) ... [2020-09-25 00:57:15,691 INFO L109 eAbstractionObserver]: Analyzing ICFG dll_of_dll-1.i [2020-09-25 00:57:15,704 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:57:15,716 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:57:15,739 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:57:15,773 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:57:15,774 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:57:15,774 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:57:15,774 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:57:15,774 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:57:15,774 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:57:15,775 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:57:15,775 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:57:15,804 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states. [2020-09-25 00:57:15,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 00:57:15,817 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:15,819 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 00:57:15,819 INFO L427 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:15,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:15,827 INFO L82 PathProgramCache]: Analyzing trace with hash 575468621, now seen corresponding path program 1 times [2020-09-25 00:57:15,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:15,839 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1430381163] [2020-09-25 00:57:15,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:16,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:16,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:16,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:16,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:17,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:21,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:21,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-25 00:57:21,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:57:21,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-09-25 00:57:21,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:21,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:21,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-09-25 00:57:21,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:21,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 00:57:21,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:21,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:21,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:21,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:21,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:57:21,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:21,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 00:57:21,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:21,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:21,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:21,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:21,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:21,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 00:57:21,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:21,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:21,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:21,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:21,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:22,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:26,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:26,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-25 00:57:26,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 00:57:26,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-25 00:57:26,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:26,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:26,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-09-25 00:57:26,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:26,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:57:26,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:26,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:26,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:26,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:26,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:29,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:30,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:31,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:31,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 00:57:31,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 00:57:31,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 00:57:31,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:31,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:31,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-09-25 00:57:31,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:31,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:31,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:57:31,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:31,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:31,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:31,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 00:57:31,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:31,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 00:57:31,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:31,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:31,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:31,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:31,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 00:57:31,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:57:31,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:31,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:31,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:31,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 00:57:31,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:31,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 00:57:31,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:31,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:31,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:31,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:31,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:31,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 00:57:31,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:31,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:31,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:31,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 00:57:31,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:31,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 00:57:31,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:31,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:31,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:31,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:31,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:57:31,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 00:57:31,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:31,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:31,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:31,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 00:57:31,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:31,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 00:57:31,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:31,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:31,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:31,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:31,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:31,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:57:31,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:31,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:31,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:31,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 00:57:31,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:31,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 00:57:31,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:31,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:31,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:31,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:31,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:31,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 00:57:31,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:31,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:31,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:31,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 00:57:31,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:31,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 00:57:31,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:31,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:31,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:31,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:31,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:31,634 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 00:57:31,636 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1430381163] [2020-09-25 00:57:31,638 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:31,638 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 00:57:31,639 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280284110] [2020-09-25 00:57:31,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 00:57:31,648 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:31,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 00:57:31,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 00:57:31,670 INFO L87 Difference]: Start difference. First operand 276 states. Second operand 4 states. [2020-09-25 00:57:32,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:32,334 INFO L93 Difference]: Finished difference Result 568 states and 767 transitions. [2020-09-25 00:57:32,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 00:57:32,336 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 85 [2020-09-25 00:57:32,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:32,355 INFO L225 Difference]: With dead ends: 568 [2020-09-25 00:57:32,355 INFO L226 Difference]: Without dead ends: 275 [2020-09-25 00:57:32,364 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 00:57:32,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2020-09-25 00:57:32,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 255. [2020-09-25 00:57:32,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-09-25 00:57:32,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 284 transitions. [2020-09-25 00:57:32,462 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 284 transitions. Word has length 85 [2020-09-25 00:57:32,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:32,463 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 284 transitions. [2020-09-25 00:57:32,463 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 00:57:32,463 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 284 transitions. [2020-09-25 00:57:32,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-25 00:57:32,468 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:32,468 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 00:57:32,469 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:57:32,469 INFO L427 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:32,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:32,470 INFO L82 PathProgramCache]: Analyzing trace with hash -1893520380, now seen corresponding path program 1 times [2020-09-25 00:57:32,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:32,470 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1591346371] [2020-09-25 00:57:32,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:32,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:32,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:32,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:32,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:33,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:37,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:37,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-09-25 00:57:37,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:57:37,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 00:57:37,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:37,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-25 00:57:37,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 00:57:37,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 00:57:37,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:37,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:37,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:37,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:37,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:37,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:57:37,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:37,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:57:37,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:37,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:37,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:37,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:37,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:37,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-25 00:57:37,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:37,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:37,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:38,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:40,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:42,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:42,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-25 00:57:42,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:57:42,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 00:57:42,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:42,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-25 00:57:42,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 00:57:42,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 00:57:42,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:42,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:42,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:42,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:42,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:42,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:43,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:47,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:47,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 00:57:47,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:57:47,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-25 00:57:47,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:47,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 00:57:47,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 00:57:47,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 00:57:47,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:47,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:57:47,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:47,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:47,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:48,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:48,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 00:57:48,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:57:48,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 556 [2020-09-25 00:57:48,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:48,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 00:57:48,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:48,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 00:57:48,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:48,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:57:48,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:48,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:48,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:48,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:48,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 00:57:48,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:57:48,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 361 [2020-09-25 00:57:48,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:48,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 00:57:48,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:48,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-25 00:57:48,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:48,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 00:57:48,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:48,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:48,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:49,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:49,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 00:57:49,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:57:49,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-25 00:57:49,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:49,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:57:49,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:49,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 00:57:49,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:49,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 00:57:49,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:49,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:49,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:49,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 00:57:49,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:49,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 465 [2020-09-25 00:57:49,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:49,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 00:57:49,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 00:57:49,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 00:57:49,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:57:49,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 00:57:49,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:49,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:50,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:50,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 00:57:50,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:50,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 359 [2020-09-25 00:57:50,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:50,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 00:57:50,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 00:57:50,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 00:57:50,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:50,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 00:57:50,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:50,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:50,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:50,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 00:57:50,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:50,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 00:57:50,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:50,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:57:50,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 00:57:50,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 00:57:50,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:50,835 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 5 proven. 17 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 00:57:50,836 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1591346371] [2020-09-25 00:57:50,836 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:57:50,837 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-09-25 00:57:50,837 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397421625] [2020-09-25 00:57:50,839 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-09-25 00:57:50,839 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:50,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-09-25 00:57:50,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2020-09-25 00:57:50,841 INFO L87 Difference]: Start difference. First operand 255 states and 284 transitions. Second operand 25 states. [2020-09-25 00:57:52,095 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2020-09-25 00:57:52,444 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 58 [2020-09-25 00:57:52,735 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2020-09-25 00:57:53,080 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2020-09-25 00:57:53,564 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2020-09-25 00:57:53,939 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2020-09-25 00:57:57,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:57,571 INFO L93 Difference]: Finished difference Result 545 states and 633 transitions. [2020-09-25 00:57:57,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-09-25 00:57:57,571 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 87 [2020-09-25 00:57:57,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:57,580 INFO L225 Difference]: With dead ends: 545 [2020-09-25 00:57:57,581 INFO L226 Difference]: Without dead ends: 299 [2020-09-25 00:57:57,586 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=240, Invalid=2112, Unknown=0, NotChecked=0, Total=2352 [2020-09-25 00:57:57,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2020-09-25 00:57:57,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 270. [2020-09-25 00:57:57,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-09-25 00:57:57,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 310 transitions. [2020-09-25 00:57:57,665 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 310 transitions. Word has length 87 [2020-09-25 00:57:57,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:57,668 INFO L479 AbstractCegarLoop]: Abstraction has 270 states and 310 transitions. [2020-09-25 00:57:57,668 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-09-25 00:57:57,668 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 310 transitions. [2020-09-25 00:57:57,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-09-25 00:57:57,674 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:57,674 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:57:57,678 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:57:57,678 INFO L427 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:57,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:57,679 INFO L82 PathProgramCache]: Analyzing trace with hash -860291591, now seen corresponding path program 1 times [2020-09-25 00:57:57,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:57,679 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [376433191] [2020-09-25 00:57:57,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:57,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:57,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:57,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:57,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:58,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:59,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking...