/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 --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 interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:24:14,837 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:24:14,840 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:24:14,868 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:24:14,868 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:24:14,870 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:24:14,871 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:24:14,873 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:24:14,875 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:24:14,876 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:24:14,877 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:24:14,878 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:24:14,879 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:24:14,880 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:24:14,881 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:24:14,882 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:24:14,883 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:24:14,885 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:24:14,886 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:24:14,888 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:24:14,890 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:24:14,891 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:24:14,892 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:24:14,893 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:24:14,898 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:24:14,899 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:24:14,899 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:24:14,900 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:24:14,900 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:24:14,903 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:24:14,904 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:24:14,904 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:24:14,905 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:24:14,908 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:24:14,909 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:24:14,910 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:24:14,910 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:24:14,912 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:24:14,912 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:24:14,913 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:24:14,915 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:24:14,916 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 [2020-09-21 11:24:14,973 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:24:14,973 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:24:14,977 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:24:14,978 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:24:14,978 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:24:14,978 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:24:14,978 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:24:14,978 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:24:14,979 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:24:14,980 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:24:14,980 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:24:14,980 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:24:14,980 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:24:14,980 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:24:14,981 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:24:14,981 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:24:14,981 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:24:14,981 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:24:14,981 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:24:14,982 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:24:14,983 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:24:14,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:24:14,983 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:24:14,983 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:24:14,984 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:24:14,984 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:24:14,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:24:14,985 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:24:14,985 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:24:14,985 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.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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:24:15,444 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:24:15,479 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:24:15,485 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:24:15,488 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:24:15,488 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:24:15,489 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i [2020-09-21 11:24:15,583 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4c54eaaf0/4f35865e46cf45118bbaefcdfa64b1aa/FLAG0764f34dc [2020-09-21 11:24:16,269 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:24:16,270 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i [2020-09-21 11:24:16,284 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4c54eaaf0/4f35865e46cf45118bbaefcdfa64b1aa/FLAG0764f34dc [2020-09-21 11:24:16,512 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4c54eaaf0/4f35865e46cf45118bbaefcdfa64b1aa [2020-09-21 11:24:16,526 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:24:16,532 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:24:16,533 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:24:16,533 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:24:16,538 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:24:16,539 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:24:16" (1/1) ... [2020-09-21 11:24:16,543 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bdfc9a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:24:16, skipping insertion in model container [2020-09-21 11:24:16,544 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:24:16" (1/1) ... [2020-09-21 11:24:16,553 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:24:16,600 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:24:17,201 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:24:17,213 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:24:17,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:24:17,322 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:24:17,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:24:17 WrapperNode [2020-09-21 11:24:17,324 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:24:17,325 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:24:17,325 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:24:17,325 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:24:17,339 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:24:17" (1/1) ... [2020-09-21 11:24:17,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:24:17" (1/1) ... [2020-09-21 11:24:17,359 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:24:17" (1/1) ... [2020-09-21 11:24:17,359 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:24:17" (1/1) ... [2020-09-21 11:24:17,378 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:24:17" (1/1) ... [2020-09-21 11:24:17,387 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:24:17" (1/1) ... [2020-09-21 11:24:17,391 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:24:17" (1/1) ... [2020-09-21 11:24:17,398 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:24:17,399 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:24:17,399 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:24:17,399 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:24:17,401 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:24:17" (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 [2020-09-21 11:24:17,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:24:17,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:24:17,475 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:24:17,475 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-21 11:24:17,475 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-21 11:24:17,475 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-21 11:24:17,475 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-21 11:24:17,476 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-21 11:24:17,476 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-21 11:24:17,477 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-21 11:24:17,477 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-21 11:24:17,477 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-21 11:24:17,478 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-21 11:24:17,478 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-21 11:24:17,478 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-21 11:24:17,479 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-21 11:24:17,479 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-21 11:24:17,479 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-21 11:24:17,479 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-21 11:24:17,480 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-21 11:24:17,481 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-21 11:24:17,481 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-21 11:24:17,481 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-21 11:24:17,481 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-21 11:24:17,482 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-21 11:24:17,484 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-21 11:24:17,484 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-21 11:24:17,484 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-21 11:24:17,485 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-21 11:24:17,485 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-21 11:24:17,485 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-21 11:24:17,485 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-21 11:24:17,485 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-21 11:24:17,485 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-21 11:24:17,485 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-21 11:24:17,486 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-21 11:24:17,486 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-21 11:24:17,486 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-21 11:24:17,486 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-21 11:24:17,486 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-21 11:24:17,487 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-21 11:24:17,487 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-21 11:24:17,487 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-21 11:24:17,487 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-21 11:24:17,487 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-21 11:24:17,487 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-21 11:24:17,487 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-21 11:24:17,488 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-21 11:24:17,488 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-21 11:24:17,488 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-21 11:24:17,488 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-21 11:24:17,488 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-21 11:24:17,488 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-21 11:24:17,489 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 11:24:17,489 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-21 11:24:17,489 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-21 11:24:17,490 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 11:24:17,490 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-21 11:24:17,491 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-21 11:24:17,491 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-21 11:24:17,491 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-21 11:24:17,491 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-21 11:24:17,491 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-21 11:24:17,491 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-21 11:24:17,492 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-21 11:24:17,492 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-21 11:24:17,492 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-21 11:24:17,493 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-21 11:24:17,493 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-21 11:24:17,493 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-21 11:24:17,493 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-21 11:24:17,494 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-21 11:24:17,495 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-21 11:24:17,495 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-21 11:24:17,495 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-21 11:24:17,496 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-21 11:24:17,497 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-21 11:24:17,497 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-21 11:24:17,497 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-21 11:24:17,497 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-21 11:24:17,497 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-21 11:24:17,497 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-21 11:24:17,498 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-21 11:24:17,498 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-21 11:24:17,498 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-21 11:24:17,499 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-21 11:24:17,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-21 11:24:17,499 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-21 11:24:17,499 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-21 11:24:17,499 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-21 11:24:17,499 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-21 11:24:17,499 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-21 11:24:17,500 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-21 11:24:17,500 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-21 11:24:17,500 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-21 11:24:17,500 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-21 11:24:17,500 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-21 11:24:17,500 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-21 11:24:17,500 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-21 11:24:17,501 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-21 11:24:17,501 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-21 11:24:17,501 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-21 11:24:17,501 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-21 11:24:17,501 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-21 11:24:17,501 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-21 11:24:17,502 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-21 11:24:17,502 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:24:17,502 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:24:17,502 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:24:17,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 11:24:17,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 11:24:17,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 11:24:17,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 11:24:17,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 11:24:17,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:24:17,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:24:17,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:24:18,204 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:24:18,205 INFO L295 CfgBuilder]: Removed 17 assume(true) statements. [2020-09-21 11:24:18,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:24:18 BoogieIcfgContainer [2020-09-21 11:24:18,213 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:24:18,214 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:24:18,215 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:24:18,219 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:24:18,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:24:16" (1/3) ... [2020-09-21 11:24:18,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@df800e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:24:18, skipping insertion in model container [2020-09-21 11:24:18,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:24:17" (2/3) ... [2020-09-21 11:24:18,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@df800e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:24:18, skipping insertion in model container [2020-09-21 11:24:18,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:24:18" (3/3) ... [2020-09-21 11:24:18,225 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-rb-sentinel-1.i [2020-09-21 11:24:18,240 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:24:18,250 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2020-09-21 11:24:18,270 INFO L251 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-09-21 11:24:18,298 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:24:18,298 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:24:18,298 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:24:18,298 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:24:18,298 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:24:18,298 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:24:18,299 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:24:18,299 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:24:18,321 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states. [2020-09-21 11:24:18,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-21 11:24:18,330 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:24:18,331 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:24:18,332 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:24:18,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:24:18,340 INFO L82 PathProgramCache]: Analyzing trace with hash -1255802584, now seen corresponding path program 1 times [2020-09-21 11:24:18,349 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:24:18,350 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1080840696] [2020-09-21 11:24:18,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:24:18,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:18,528 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:24:18,528 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:24:18,528 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:24:18,529 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:18,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:24:18,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:18,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:24:18,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:18,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:24:18,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:24:18,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:24:18,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:24:18,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:24:18,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:18,628 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:24:18,629 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:24:18,629 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:24:18,629 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:18,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:24:18,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:18,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:24:18,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:18,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:24:18,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:24:18,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:24:18,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:24:18,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:24:18,647 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1080840696] [2020-09-21 11:24:18,649 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:24:18,650 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:24:18,651 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247483726] [2020-09-21 11:24:18,657 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 11:24:18,658 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:24:18,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 11:24:18,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:24:18,679 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 3 states. [2020-09-21 11:24:18,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:24:18,894 INFO L93 Difference]: Finished difference Result 98 states and 156 transitions. [2020-09-21 11:24:18,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 11:24:18,896 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-09-21 11:24:18,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:24:18,908 INFO L225 Difference]: With dead ends: 98 [2020-09-21 11:24:18,909 INFO L226 Difference]: Without dead ends: 45 [2020-09-21 11:24:18,913 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:24:18,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-09-21 11:24:18,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-09-21 11:24:18,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-09-21 11:24:18,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 48 transitions. [2020-09-21 11:24:18,957 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 48 transitions. Word has length 10 [2020-09-21 11:24:18,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:24:18,957 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 48 transitions. [2020-09-21 11:24:18,957 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 11:24:18,957 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 48 transitions. [2020-09-21 11:24:18,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-21 11:24:18,958 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:24:18,958 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:24:18,959 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:24:18,959 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:24:18,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:24:18,960 INFO L82 PathProgramCache]: Analyzing trace with hash -338068956, now seen corresponding path program 1 times [2020-09-21 11:24:18,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:24:18,960 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [948975602] [2020-09-21 11:24:18,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:24:19,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:19,064 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:24:19,064 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:24:19,065 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:24:19,065 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:19,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 11:24:19,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:19,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-21 11:24:19,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:19,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:24:19,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 11:24:19,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:24:19,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:24:19,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:24:19,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:19,150 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:24:19,150 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:24:19,151 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:24:19,152 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:19,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:24:19,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:19,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:24:19,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:19,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:24:19,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:24:19,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:24:19,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:24:19,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:24:19,174 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [948975602] [2020-09-21 11:24:19,174 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:24:19,175 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 11:24:19,175 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783059508] [2020-09-21 11:24:19,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:24:19,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:24:19,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:24:19,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:24:19,182 INFO L87 Difference]: Start difference. First operand 45 states and 48 transitions. Second operand 5 states. [2020-09-21 11:24:19,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:24:19,377 INFO L93 Difference]: Finished difference Result 51 states and 56 transitions. [2020-09-21 11:24:19,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:24:19,378 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-09-21 11:24:19,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:24:19,379 INFO L225 Difference]: With dead ends: 51 [2020-09-21 11:24:19,380 INFO L226 Difference]: Without dead ends: 49 [2020-09-21 11:24:19,381 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:24:19,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-09-21 11:24:19,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2020-09-21 11:24:19,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-09-21 11:24:19,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 46 transitions. [2020-09-21 11:24:19,389 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 46 transitions. Word has length 11 [2020-09-21 11:24:19,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:24:19,389 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 46 transitions. [2020-09-21 11:24:19,390 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:24:19,390 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 46 transitions. [2020-09-21 11:24:19,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-21 11:24:19,390 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:24:19,391 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:24:19,391 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:24:19,391 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:24:19,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:24:19,392 INFO L82 PathProgramCache]: Analyzing trace with hash -1890143313, now seen corresponding path program 1 times [2020-09-21 11:24:19,392 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:24:19,392 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [797291020] [2020-09-21 11:24:19,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:24:19,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:19,504 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:24:19,504 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:24:19,504 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:24:19,505 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:19,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:24:19,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:19,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-21 11:24:19,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:19,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:24:19,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-21 11:24:19,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:24:19,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:24:19,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:24:19,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:19,559 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:24:19,559 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:24:19,559 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:24:19,560 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:19,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:24:19,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:19,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:24:19,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:19,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:24:19,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:24:19,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:24:19,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:24:19,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:24:19,568 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [797291020] [2020-09-21 11:24:19,568 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:24:19,568 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 11:24:19,568 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562952612] [2020-09-21 11:24:19,569 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:24:19,569 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:24:19,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:24:19,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:24:19,570 INFO L87 Difference]: Start difference. First operand 43 states and 46 transitions. Second operand 5 states. [2020-09-21 11:24:19,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:24:19,730 INFO L93 Difference]: Finished difference Result 43 states and 46 transitions. [2020-09-21 11:24:19,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:24:19,731 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-09-21 11:24:19,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:24:19,732 INFO L225 Difference]: With dead ends: 43 [2020-09-21 11:24:19,732 INFO L226 Difference]: Without dead ends: 41 [2020-09-21 11:24:19,733 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:24:19,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-09-21 11:24:19,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-09-21 11:24:19,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-09-21 11:24:19,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2020-09-21 11:24:19,741 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 12 [2020-09-21 11:24:19,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:24:19,741 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2020-09-21 11:24:19,742 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:24:19,742 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2020-09-21 11:24:19,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-21 11:24:19,742 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:24:19,743 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:24:19,743 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:24:19,743 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:24:19,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:24:19,744 INFO L82 PathProgramCache]: Analyzing trace with hash 290038970, now seen corresponding path program 1 times [2020-09-21 11:24:19,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:24:19,744 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1558263453] [2020-09-21 11:24:19,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:24:19,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:19,825 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:24:19,825 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:24:19,826 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:24:19,826 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:19,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-21 11:24:19,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:19,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-21 11:24:19,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:19,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:24:19,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 11:24:19,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:24:19,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:24:19,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:24:19,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:19,920 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:24:19,920 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:24:19,920 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:24:19,921 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:19,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:24:19,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:19,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:24:19,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:19,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:24:19,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:24:19,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:24:19,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:24:19,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:24:19,926 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1558263453] [2020-09-21 11:24:19,927 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:24:19,927 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 11:24:19,927 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666051554] [2020-09-21 11:24:19,927 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 11:24:19,928 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:24:19,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 11:24:19,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:24:19,928 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand 6 states. [2020-09-21 11:24:20,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:24:20,166 INFO L93 Difference]: Finished difference Result 66 states and 72 transitions. [2020-09-21 11:24:20,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 11:24:20,167 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-09-21 11:24:20,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:24:20,168 INFO L225 Difference]: With dead ends: 66 [2020-09-21 11:24:20,169 INFO L226 Difference]: Without dead ends: 64 [2020-09-21 11:24:20,169 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:24:20,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-09-21 11:24:20,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 48. [2020-09-21 11:24:20,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-09-21 11:24:20,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2020-09-21 11:24:20,178 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 14 [2020-09-21 11:24:20,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:24:20,179 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2020-09-21 11:24:20,179 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 11:24:20,179 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2020-09-21 11:24:20,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-21 11:24:20,180 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:24:20,180 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:24:20,180 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:24:20,181 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:24:20,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:24:20,181 INFO L82 PathProgramCache]: Analyzing trace with hash 2060721718, now seen corresponding path program 1 times [2020-09-21 11:24:20,182 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:24:20,182 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [633605984] [2020-09-21 11:24:20,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:24:20,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:20,253 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:24:20,254 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:24:20,254 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:24:20,254 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:20,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 11:24:20,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:20,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-21 11:24:20,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:20,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:24:20,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-21 11:24:20,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:24:20,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:24:20,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:24:20,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:20,353 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:24:20,354 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:24:20,354 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:24:20,355 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:20,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:24:20,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:20,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:24:20,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:20,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:24:20,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:24:20,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:24:20,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:24:20,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:24:20,363 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [633605984] [2020-09-21 11:24:20,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:24:20,363 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 11:24:20,363 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113424617] [2020-09-21 11:24:20,364 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:24:20,364 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:24:20,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:24:20,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:24:20,365 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand 5 states. [2020-09-21 11:24:20,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:24:20,644 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions. [2020-09-21 11:24:20,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:24:20,644 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-09-21 11:24:20,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:24:20,645 INFO L225 Difference]: With dead ends: 48 [2020-09-21 11:24:20,647 INFO L226 Difference]: Without dead ends: 46 [2020-09-21 11:24:20,647 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:24:20,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-09-21 11:24:20,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-09-21 11:24:20,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-09-21 11:24:20,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2020-09-21 11:24:20,659 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 15 [2020-09-21 11:24:20,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:24:20,659 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2020-09-21 11:24:20,659 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:24:20,660 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2020-09-21 11:24:20,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-21 11:24:20,663 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:24:20,663 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:24:20,663 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:24:20,663 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:24:20,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:24:20,664 INFO L82 PathProgramCache]: Analyzing trace with hash 373775322, now seen corresponding path program 1 times [2020-09-21 11:24:20,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:24:20,665 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [808229079] [2020-09-21 11:24:20,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:24:20,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:20,901 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:24:20,901 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:24:20,901 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:24:20,902 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:20,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-21 11:24:20,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:20,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-09-21 11:24:20,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:20,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:24:20,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 11:24:20,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:24:20,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:24:20,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:24:20,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:20,975 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:24:20,975 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:24:20,976 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:24:20,976 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:24:20,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:24:20,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:24:20,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:24:20,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:24:20,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:24:20,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:24:20,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:24:20,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:24:20,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:24:20,983 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [808229079] [2020-09-21 11:24:20,984 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:24:20,984 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 11:24:20,985 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63892792] [2020-09-21 11:24:20,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:24:20,985 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:24:20,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:24:20,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:24:20,987 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand 5 states. [2020-09-21 11:24:21,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:24:21,144 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2020-09-21 11:24:21,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:24:21,145 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-21 11:24:21,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:24:21,146 INFO L225 Difference]: With dead ends: 46 [2020-09-21 11:24:21,146 INFO L226 Difference]: Without dead ends: 44 [2020-09-21 11:24:21,147 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:24:21,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-21 11:24:21,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2020-09-21 11:24:21,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-09-21 11:24:21,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2020-09-21 11:24:21,162 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 17 [2020-09-21 11:24:21,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:24:21,162 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2020-09-21 11:24:21,163 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:24:21,163 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2020-09-21 11:24:21,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-21 11:24:21,164 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:24:21,164 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:24:21,164 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:24:21,164 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:24:21,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:24:21,165 INFO L82 PathProgramCache]: Analyzing trace with hash 1568846049, now seen corresponding path program 1 times [2020-09-21 11:24:21,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:24:21,167 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [33267828] [2020-09-21 11:24:21,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:24:21,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:24:21,199 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 11:24:21,200 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Something went wrong, the set of all crits should be unsatisfiable! at de.uni_freiburg.informatik.ultimate.smtinterpol.muses.Shrinking.shrink(Shrinking.java:196) at de.uni_freiburg.informatik.ultimate.smtinterpol.muses.MusEnumerationScript.shrinkVanillaUnsatCore(MusEnumerationScript.java:414) at de.uni_freiburg.informatik.ultimate.smtinterpol.muses.MusEnumerationScript.getInterpolants(MusEnumerationScript.java:205) at de.uni_freiburg.informatik.ultimate.smtinterpol.muses.MusEnumerationScript.getInterpolants(MusEnumerationScript.java:150) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:191) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:166) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:326) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-09-21 11:24:21,210 INFO L168 Benchmark]: Toolchain (without parser) took 4679.90 ms. Allocated memory was 139.5 MB in the beginning and 246.4 MB in the end (delta: 107.0 MB). Free memory was 101.3 MB in the beginning and 153.9 MB in the end (delta: -52.6 MB). Peak memory consumption was 54.3 MB. Max. memory is 7.1 GB. [2020-09-21 11:24:21,213 INFO L168 Benchmark]: CDTParser took 0.97 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-21 11:24:21,219 INFO L168 Benchmark]: CACSL2BoogieTranslator took 791.33 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 100.8 MB in the beginning and 168.7 MB in the end (delta: -67.8 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. [2020-09-21 11:24:21,220 INFO L168 Benchmark]: Boogie Preprocessor took 73.84 ms. Allocated memory is still 202.4 MB. Free memory was 168.7 MB in the beginning and 165.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-09-21 11:24:21,220 INFO L168 Benchmark]: RCFGBuilder took 814.10 ms. Allocated memory is still 202.4 MB. Free memory was 165.2 MB in the beginning and 113.5 MB in the end (delta: 51.7 MB). Peak memory consumption was 51.7 MB. Max. memory is 7.1 GB. [2020-09-21 11:24:21,221 INFO L168 Benchmark]: TraceAbstraction took 2990.96 ms. Allocated memory was 202.4 MB in the beginning and 246.4 MB in the end (delta: 44.0 MB). Free memory was 112.8 MB in the beginning and 153.9 MB in the end (delta: -41.1 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2020-09-21 11:24:21,235 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.97 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 791.33 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 100.8 MB in the beginning and 168.7 MB in the end (delta: -67.8 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 73.84 ms. Allocated memory is still 202.4 MB. Free memory was 168.7 MB in the beginning and 165.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 814.10 ms. Allocated memory is still 202.4 MB. Free memory was 165.2 MB in the beginning and 113.5 MB in the end (delta: 51.7 MB). Peak memory consumption was 51.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2990.96 ms. Allocated memory was 202.4 MB in the beginning and 246.4 MB in the end (delta: 44.0 MB). Free memory was 112.8 MB in the beginning and 153.9 MB in the end (delta: -41.1 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Something went wrong, the set of all crits should be unsatisfiable! de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Something went wrong, the set of all crits should be unsatisfiable!: de.uni_freiburg.informatik.ultimate.smtinterpol.muses.Shrinking.shrink(Shrinking.java:196) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...