/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=WIDEST --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-sorted-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 03:15:09,744 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 03:15:09,748 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 03:15:09,794 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 03:15:09,794 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 03:15:09,802 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 03:15:09,804 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 03:15:09,807 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 03:15:09,810 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 03:15:09,813 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 03:15:09,814 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 03:15:09,815 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 03:15:09,815 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 03:15:09,818 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 03:15:09,820 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 03:15:09,822 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 03:15:09,824 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 03:15:09,825 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 03:15:09,826 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 03:15:09,835 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 03:15:09,837 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 03:15:09,838 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 03:15:09,839 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 03:15:09,840 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 03:15:09,858 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 03:15:09,858 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 03:15:09,858 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 03:15:09,860 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 03:15:09,860 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 03:15:09,864 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 03:15:09,864 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 03:15:09,866 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 03:15:09,866 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 03:15:09,869 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 03:15:09,870 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 03:15:09,870 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 03:15:09,871 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 03:15:09,871 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 03:15:09,871 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 03:15:09,873 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 03:15:09,874 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 03:15:09,875 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 03:15:09,917 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 03:15:09,917 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 03:15:09,919 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 03:15:09,919 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 03:15:09,919 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 03:15:09,919 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 03:15:09,920 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 03:15:09,920 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 03:15:09,920 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 03:15:09,920 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 03:15:09,920 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 03:15:09,921 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 03:15:09,921 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 03:15:09,921 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 03:15:09,921 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 03:15:09,921 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 03:15:09,922 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 03:15:09,922 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 03:15:09,922 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 03:15:09,922 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 03:15:09,922 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 03:15:09,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:15:09,923 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 03:15:09,923 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 03:15:09,923 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 03:15:09,924 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 03:15:09,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 03:15:09,924 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 03:15:09,924 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 03:15:09,924 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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;log-additional-information=true; [2020-09-25 03:15:10,412 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 03:15:10,439 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 03:15:10,443 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 03:15:10,446 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 03:15:10,447 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 03:15:10,448 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-sorted-1.i [2020-09-25 03:15:10,528 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ac43f9c52/6f722d46ade9458b82bd831709d042c4/FLAG0afb1adc1 [2020-09-25 03:15:11,131 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 03:15:11,132 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/forester-heap/dll-sorted-1.i [2020-09-25 03:15:11,148 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ac43f9c52/6f722d46ade9458b82bd831709d042c4/FLAG0afb1adc1 [2020-09-25 03:15:11,369 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ac43f9c52/6f722d46ade9458b82bd831709d042c4 [2020-09-25 03:15:11,385 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 03:15:11,392 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 03:15:11,394 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 03:15:11,394 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 03:15:11,398 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 03:15:11,399 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:15:11" (1/1) ... [2020-09-25 03:15:11,406 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d5d5e76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:15:11, skipping insertion in model container [2020-09-25 03:15:11,406 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:15:11" (1/1) ... [2020-09-25 03:15:11,418 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 03:15:11,493 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 03:15:12,044 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:15:12,057 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 03:15:12,109 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:15:12,176 INFO L208 MainTranslator]: Completed translation [2020-09-25 03:15:12,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:15:12 WrapperNode [2020-09-25 03:15:12,178 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 03:15:12,179 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 03:15:12,179 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 03:15:12,179 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 03:15:12,196 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:15:12" (1/1) ... [2020-09-25 03:15:12,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:15:12" (1/1) ... [2020-09-25 03:15:12,219 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:15:12" (1/1) ... [2020-09-25 03:15:12,220 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:15:12" (1/1) ... [2020-09-25 03:15:12,240 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:15:12" (1/1) ... [2020-09-25 03:15:12,249 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:15:12" (1/1) ... [2020-09-25 03:15:12,253 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:15:12" (1/1) ... [2020-09-25 03:15:12,260 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 03:15:12,261 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 03:15:12,261 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 03:15:12,262 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 03:15:12,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:15:12" (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 03:15:12,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 03:15:12,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 03:15:12,340 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 03:15:12,341 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 03:15:12,341 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 03:15:12,341 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 03:15:12,341 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 03:15:12,341 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 03:15:12,342 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 03:15:12,342 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 03:15:12,342 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 03:15:12,342 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 03:15:12,343 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 03:15:12,343 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 03:15:12,343 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 03:15:12,343 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 03:15:12,343 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 03:15:12,344 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 03:15:12,344 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 03:15:12,344 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 03:15:12,344 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 03:15:12,344 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 03:15:12,344 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 03:15:12,345 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 03:15:12,345 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 03:15:12,345 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 03:15:12,345 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 03:15:12,345 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 03:15:12,345 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 03:15:12,346 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 03:15:12,346 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 03:15:12,346 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 03:15:12,346 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 03:15:12,346 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 03:15:12,346 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 03:15:12,346 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 03:15:12,346 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 03:15:12,347 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 03:15:12,347 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 03:15:12,347 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 03:15:12,347 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 03:15:12,347 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 03:15:12,347 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 03:15:12,347 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 03:15:12,348 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 03:15:12,348 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 03:15:12,348 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 03:15:12,348 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 03:15:12,348 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 03:15:12,348 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 03:15:12,348 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 03:15:12,348 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 03:15:12,349 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 03:15:12,349 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 03:15:12,349 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 03:15:12,349 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 03:15:12,349 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 03:15:12,349 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 03:15:12,349 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 03:15:12,349 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 03:15:12,349 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 03:15:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-25 03:15:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 03:15:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 03:15:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-25 03:15:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 03:15:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 03:15:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-25 03:15:12,351 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 03:15:12,351 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 03:15:12,351 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 03:15:12,351 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 03:15:12,351 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 03:15:12,351 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 03:15:12,352 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 03:15:12,352 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 03:15:12,352 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 03:15:12,352 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 03:15:12,352 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 03:15:12,352 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 03:15:12,352 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 03:15:12,353 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 03:15:12,353 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 03:15:12,353 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 03:15:12,353 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 03:15:12,353 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 03:15:12,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 03:15:12,354 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 03:15:12,354 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 03:15:12,354 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 03:15:12,354 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 03:15:12,354 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 03:15:12,354 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 03:15:12,355 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 03:15:12,355 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 03:15:12,355 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 03:15:12,355 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 03:15:12,355 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 03:15:12,355 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 03:15:12,355 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 03:15:12,356 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 03:15:12,356 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 03:15:12,356 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 03:15:12,356 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 03:15:12,356 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-25 03:15:12,356 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 03:15:12,357 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 03:15:12,357 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 03:15:12,357 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 03:15:12,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 03:15:12,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 03:15:12,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 03:15:12,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 03:15:12,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 03:15:12,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 03:15:12,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 03:15:12,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 03:15:13,134 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 03:15:13,134 INFO L295 CfgBuilder]: Removed 18 assume(true) statements. [2020-09-25 03:15:13,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:15:13 BoogieIcfgContainer [2020-09-25 03:15:13,141 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 03:15:13,143 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 03:15:13,143 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 03:15:13,147 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 03:15:13,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:15:11" (1/3) ... [2020-09-25 03:15:13,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a0e1f6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:15:13, skipping insertion in model container [2020-09-25 03:15:13,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:15:12" (2/3) ... [2020-09-25 03:15:13,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a0e1f6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:15:13, skipping insertion in model container [2020-09-25 03:15:13,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:15:13" (3/3) ... [2020-09-25 03:15:13,151 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-sorted-1.i [2020-09-25 03:15:13,160 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 03:15:13,170 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-09-25 03:15:13,192 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-09-25 03:15:13,224 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 03:15:13,225 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 03:15:13,225 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 03:15:13,225 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 03:15:13,225 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 03:15:13,226 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 03:15:13,226 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 03:15:13,226 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 03:15:13,255 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states. [2020-09-25 03:15:13,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-25 03:15:13,264 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:15:13,265 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:15:13,266 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:15:13,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:15:13,275 INFO L82 PathProgramCache]: Analyzing trace with hash 815166367, now seen corresponding path program 1 times [2020-09-25 03:15:13,286 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:15:13,287 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [797621925] [2020-09-25 03:15:13,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:15:13,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:15:13,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:13,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:13,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:15:13,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 03:15:13,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:15:13,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 344 [2020-09-25 03:15:13,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:15:13,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:15:13,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 03:15:13,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 03:15:13,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 03:15:13,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:15:13,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:15:13,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:13,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:15:13,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:15:13,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:15:13,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 03:15:13,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:15:13,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:15:13,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:15:13,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:15:13,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:15:13,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:15:13,949 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [797621925] [2020-09-25 03:15:13,951 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:15:13,952 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 03:15:13,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355637981] [2020-09-25 03:15:13,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 03:15:13,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:15:13,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 03:15:13,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 03:15:13,980 INFO L87 Difference]: Start difference. First operand 156 states. Second operand 6 states. [2020-09-25 03:15:14,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:15:14,490 INFO L93 Difference]: Finished difference Result 390 states and 486 transitions. [2020-09-25 03:15:14,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 03:15:14,493 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-09-25 03:15:14,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:15:14,510 INFO L225 Difference]: With dead ends: 390 [2020-09-25 03:15:14,510 INFO L226 Difference]: Without dead ends: 246 [2020-09-25 03:15:14,516 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 [2020-09-25 03:15:14,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2020-09-25 03:15:14,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 142. [2020-09-25 03:15:14,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-09-25 03:15:14,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 152 transitions. [2020-09-25 03:15:14,585 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 152 transitions. Word has length 18 [2020-09-25 03:15:14,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:15:14,586 INFO L479 AbstractCegarLoop]: Abstraction has 142 states and 152 transitions. [2020-09-25 03:15:14,586 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 03:15:14,586 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 152 transitions. [2020-09-25 03:15:14,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-25 03:15:14,588 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:15:14,588 INFO L422 BasicCegarLoop]: trace histogram [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, 1] [2020-09-25 03:15:14,589 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 03:15:14,589 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:15:14,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:15:14,590 INFO L82 PathProgramCache]: Analyzing trace with hash -1753263237, now seen corresponding path program 1 times [2020-09-25 03:15:14,590 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:15:14,590 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1530791796] [2020-09-25 03:15:14,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:15:14,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:15:14,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:14,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:14,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:14,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:15,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:17,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:15:17,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 03:15:17,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 03:15:17,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2892 [2020-09-25 03:15:17,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:15:17,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:15:17,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 03:15:17,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 03:15:17,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:15:17,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:15:17,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:15:17,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:17,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:15:17,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:15:17,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:15:17,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 03:15:17,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:15:17,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:15:17,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:15:17,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:15:17,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:15:17,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:15:17,645 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1530791796] [2020-09-25 03:15:17,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:15:17,646 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 03:15:17,646 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717294930] [2020-09-25 03:15:17,648 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 03:15:17,649 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:15:17,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 03:15:17,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 03:15:17,650 INFO L87 Difference]: Start difference. First operand 142 states and 152 transitions. Second operand 7 states. [2020-09-25 03:15:18,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:15:18,163 INFO L93 Difference]: Finished difference Result 309 states and 335 transitions. [2020-09-25 03:15:18,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 03:15:18,163 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 43 [2020-09-25 03:15:18,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:15:18,166 INFO L225 Difference]: With dead ends: 309 [2020-09-25 03:15:18,166 INFO L226 Difference]: Without dead ends: 224 [2020-09-25 03:15:18,168 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-25 03:15:18,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2020-09-25 03:15:18,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 164. [2020-09-25 03:15:18,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-09-25 03:15:18,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 177 transitions. [2020-09-25 03:15:18,188 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 177 transitions. Word has length 43 [2020-09-25 03:15:18,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:15:18,188 INFO L479 AbstractCegarLoop]: Abstraction has 164 states and 177 transitions. [2020-09-25 03:15:18,188 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 03:15:18,189 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 177 transitions. [2020-09-25 03:15:18,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-25 03:15:18,191 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:15:18,191 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:15:18,192 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 03:15:18,192 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:15:18,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:15:18,193 INFO L82 PathProgramCache]: Analyzing trace with hash 1161635121, now seen corresponding path program 1 times [2020-09-25 03:15:18,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:15:18,194 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1181912751] [2020-09-25 03:15:18,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:15:18,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:15:18,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:18,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:18,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:18,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:18,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:22,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:15:22,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-09-25 03:15:22,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 03:15:22,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4440 [2020-09-25 03:15:22,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:15:22,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:15:22,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 03:15:22,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 03:15:22,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:15:22,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:15:22,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:15:22,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:22,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:15:22,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:15:22,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:15:22,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 03:15:22,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:15:22,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:15:22,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:15:22,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:15:22,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:15:22,785 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:15:22,786 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1181912751] [2020-09-25 03:15:22,786 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:15:22,787 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 03:15:22,787 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461072498] [2020-09-25 03:15:22,788 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 03:15:22,788 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:15:22,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 03:15:22,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 03:15:22,789 INFO L87 Difference]: Start difference. First operand 164 states and 177 transitions. Second operand 7 states. [2020-09-25 03:15:23,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:15:23,221 INFO L93 Difference]: Finished difference Result 287 states and 309 transitions. [2020-09-25 03:15:23,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 03:15:23,221 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2020-09-25 03:15:23,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:15:23,223 INFO L225 Difference]: With dead ends: 287 [2020-09-25 03:15:23,223 INFO L226 Difference]: Without dead ends: 172 [2020-09-25 03:15:23,225 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-09-25 03:15:23,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-09-25 03:15:23,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 162. [2020-09-25 03:15:23,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-09-25 03:15:23,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 173 transitions. [2020-09-25 03:15:23,238 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 173 transitions. Word has length 56 [2020-09-25 03:15:23,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:15:23,238 INFO L479 AbstractCegarLoop]: Abstraction has 162 states and 173 transitions. [2020-09-25 03:15:23,238 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 03:15:23,239 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 173 transitions. [2020-09-25 03:15:23,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-09-25 03:15:23,241 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:15:23,241 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:15:23,241 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 03:15:23,241 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:15:23,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:15:23,242 INFO L82 PathProgramCache]: Analyzing trace with hash 964312838, now seen corresponding path program 1 times [2020-09-25 03:15:23,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:15:23,243 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1312383496] [2020-09-25 03:15:23,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:15:23,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:15:23,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:23,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:23,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:23,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:24,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:25,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:27,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:15:27,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-25 03:15:27,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 03:15:27,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4404 [2020-09-25 03:15:27,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:15:27,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 03:15:27,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 03:15:27,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 03:15:27,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:15:28,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:15:28,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:15:28,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:28,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:15:28,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:15:28,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:15:28,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 03:15:28,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:15:28,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:15:28,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:15:28,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:15:28,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:15:28,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:15:28,121 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1312383496] [2020-09-25 03:15:28,122 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:15:28,122 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 03:15:28,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908648767] [2020-09-25 03:15:28,123 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 03:15:28,123 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:15:28,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 03:15:28,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2020-09-25 03:15:28,128 INFO L87 Difference]: Start difference. First operand 162 states and 173 transitions. Second operand 13 states. [2020-09-25 03:15:29,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:15:29,026 INFO L93 Difference]: Finished difference Result 280 states and 297 transitions. [2020-09-25 03:15:29,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 03:15:29,027 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 59 [2020-09-25 03:15:29,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:15:29,031 INFO L225 Difference]: With dead ends: 280 [2020-09-25 03:15:29,031 INFO L226 Difference]: Without dead ends: 277 [2020-09-25 03:15:29,032 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2020-09-25 03:15:29,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-09-25 03:15:29,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 189. [2020-09-25 03:15:29,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-09-25 03:15:29,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 203 transitions. [2020-09-25 03:15:29,066 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 203 transitions. Word has length 59 [2020-09-25 03:15:29,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:15:29,067 INFO L479 AbstractCegarLoop]: Abstraction has 189 states and 203 transitions. [2020-09-25 03:15:29,067 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 03:15:29,067 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 203 transitions. [2020-09-25 03:15:29,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-09-25 03:15:29,069 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:15:29,069 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:15:29,070 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 03:15:29,070 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:15:29,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:15:29,071 INFO L82 PathProgramCache]: Analyzing trace with hash -249552179, now seen corresponding path program 1 times [2020-09-25 03:15:29,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:15:29,071 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1252170089] [2020-09-25 03:15:29,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:15:29,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:15:29,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:29,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:29,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:29,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:29,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:29,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:29,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:31,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:15:31,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-25 03:15:31,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 03:15:31,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2617 [2020-09-25 03:15:31,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:15:31,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:15:31,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 03:15:31,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 03:15:31,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:15:31,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:15:31,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:15:31,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:31,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:15:31,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:15:31,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:15:31,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 03:15:31,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:15:31,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:15:31,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:15:31,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:15:31,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:15:31,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:15:31,788 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1252170089] [2020-09-25 03:15:31,788 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:15:31,788 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 03:15:31,789 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308378907] [2020-09-25 03:15:31,789 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 03:15:31,789 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:15:31,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 03:15:31,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 03:15:31,790 INFO L87 Difference]: Start difference. First operand 189 states and 203 transitions. Second operand 7 states. [2020-09-25 03:15:32,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:15:32,182 INFO L93 Difference]: Finished difference Result 343 states and 367 transitions. [2020-09-25 03:15:32,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 03:15:32,183 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 60 [2020-09-25 03:15:32,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:15:32,186 INFO L225 Difference]: With dead ends: 343 [2020-09-25 03:15:32,186 INFO L226 Difference]: Without dead ends: 291 [2020-09-25 03:15:32,187 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-09-25 03:15:32,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2020-09-25 03:15:32,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 191. [2020-09-25 03:15:32,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-09-25 03:15:32,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 204 transitions. [2020-09-25 03:15:32,207 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 204 transitions. Word has length 60 [2020-09-25 03:15:32,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:15:32,209 INFO L479 AbstractCegarLoop]: Abstraction has 191 states and 204 transitions. [2020-09-25 03:15:32,209 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 03:15:32,209 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 204 transitions. [2020-09-25 03:15:32,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-25 03:15:32,216 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:15:32,217 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:15:32,217 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 03:15:32,217 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:15:32,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:15:32,218 INFO L82 PathProgramCache]: Analyzing trace with hash 2033546672, now seen corresponding path program 1 times [2020-09-25 03:15:32,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:15:32,219 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [169409495] [2020-09-25 03:15:32,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:15:32,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:15:32,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:32,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:33,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:34,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:15:34,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-25 03:15:34,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:15:34,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2079 [2020-09-25 03:15:34,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:15:34,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 03:15:34,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 03:15:34,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 03:15:34,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:15:34,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:15:34,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:15:34,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:34,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:15:34,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:15:34,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:15:34,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:15:34,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:15:34,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:15:34,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:15:34,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:15:34,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:15:34,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:15:34,802 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [169409495] [2020-09-25 03:15:34,804 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:15:34,804 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-25 03:15:34,804 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466614971] [2020-09-25 03:15:34,805 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 03:15:34,805 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:15:34,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 03:15:34,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-09-25 03:15:34,806 INFO L87 Difference]: Start difference. First operand 191 states and 204 transitions. Second operand 14 states. [2020-09-25 03:15:35,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:15:35,923 INFO L93 Difference]: Finished difference Result 280 states and 296 transitions. [2020-09-25 03:15:35,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 03:15:35,924 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 62 [2020-09-25 03:15:35,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:15:35,928 INFO L225 Difference]: With dead ends: 280 [2020-09-25 03:15:35,928 INFO L226 Difference]: Without dead ends: 260 [2020-09-25 03:15:35,929 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=170, Invalid=430, Unknown=0, NotChecked=0, Total=600 [2020-09-25 03:15:35,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-09-25 03:15:35,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 191. [2020-09-25 03:15:35,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-09-25 03:15:35,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 203 transitions. [2020-09-25 03:15:35,948 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 203 transitions. Word has length 62 [2020-09-25 03:15:35,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:15:35,948 INFO L479 AbstractCegarLoop]: Abstraction has 191 states and 203 transitions. [2020-09-25 03:15:35,948 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 03:15:35,948 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 203 transitions. [2020-09-25 03:15:35,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-25 03:15:35,949 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:15:35,949 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:15:35,950 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 03:15:35,950 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:15:35,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:15:35,950 INFO L82 PathProgramCache]: Analyzing trace with hash -411491553, now seen corresponding path program 1 times [2020-09-25 03:15:35,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:15:35,951 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [952841429] [2020-09-25 03:15:35,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:15:35,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:15:35,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:36,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:36,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:36,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:37,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:37,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:40,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:15:40,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-25 03:15:40,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 03:15:40,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 03:15:40,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:15:40,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 03:15:40,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 03:15:40,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 03:15:40,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:15:41,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:15:41,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:15:41,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:41,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:15:41,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:15:41,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:15:41,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:15:41,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:15:41,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:15:41,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:15:41,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:15:41,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:15:41,233 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:15:41,234 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [952841429] [2020-09-25 03:15:41,234 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:15:41,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 03:15:41,235 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241877552] [2020-09-25 03:15:41,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 03:15:41,236 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:15:41,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 03:15:41,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-09-25 03:15:41,236 INFO L87 Difference]: Start difference. First operand 191 states and 203 transitions. Second operand 15 states. [2020-09-25 03:15:42,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:15:42,482 INFO L93 Difference]: Finished difference Result 486 states and 520 transitions. [2020-09-25 03:15:42,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 03:15:42,483 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 62 [2020-09-25 03:15:42,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:15:42,485 INFO L225 Difference]: With dead ends: 486 [2020-09-25 03:15:42,486 INFO L226 Difference]: Without dead ends: 393 [2020-09-25 03:15:42,487 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=186, Invalid=684, Unknown=0, NotChecked=0, Total=870 [2020-09-25 03:15:42,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2020-09-25 03:15:42,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 219. [2020-09-25 03:15:42,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2020-09-25 03:15:42,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 234 transitions. [2020-09-25 03:15:42,498 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 234 transitions. Word has length 62 [2020-09-25 03:15:42,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:15:42,498 INFO L479 AbstractCegarLoop]: Abstraction has 219 states and 234 transitions. [2020-09-25 03:15:42,498 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 03:15:42,498 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 234 transitions. [2020-09-25 03:15:42,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-25 03:15:42,499 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:15:42,499 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:15:42,500 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 03:15:42,500 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:15:42,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:15:42,500 INFO L82 PathProgramCache]: Analyzing trace with hash 1053070700, now seen corresponding path program 1 times [2020-09-25 03:15:42,500 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:15:42,501 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1028868262] [2020-09-25 03:15:42,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:15:42,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:15:42,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:42,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:42,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:44,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:15:44,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 03:15:44,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:15:44,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1645 [2020-09-25 03:15:44,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:15:44,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 03:15:44,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 03:15:44,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-25 03:15:44,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:15:44,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:15:44,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:15:44,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:15:44,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:15:44,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:15:44,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:15:44,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:15:44,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:15:44,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:15:44,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:15:44,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:15:44,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:15:44,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:15:44,512 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1028868262] [2020-09-25 03:15:44,512 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:15:44,512 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-25 03:15:44,512 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637155160] [2020-09-25 03:15:44,512 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 03:15:44,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:15:44,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 03:15:44,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2020-09-25 03:15:44,513 INFO L87 Difference]: Start difference. First operand 219 states and 234 transitions. Second operand 14 states. [2020-09-25 03:15:45,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:15:45,201 INFO L93 Difference]: Finished difference Result 386 states and 417 transitions. [2020-09-25 03:15:45,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 03:15:45,201 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 63 [2020-09-25 03:15:45,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:15:45,203 INFO L225 Difference]: With dead ends: 386 [2020-09-25 03:15:45,204 INFO L226 Difference]: Without dead ends: 200 [2020-09-25 03:15:45,205 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2020-09-25 03:15:45,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2020-09-25 03:15:45,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 190. [2020-09-25 03:15:45,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-09-25 03:15:45,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 204 transitions. [2020-09-25 03:15:45,213 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 204 transitions. Word has length 63 [2020-09-25 03:15:45,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:15:45,214 INFO L479 AbstractCegarLoop]: Abstraction has 190 states and 204 transitions. [2020-09-25 03:15:45,214 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 03:15:45,214 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 204 transitions. [2020-09-25 03:15:45,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-09-25 03:15:45,215 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:15:45,215 INFO L422 BasicCegarLoop]: trace histogram [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, 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 03:15:45,215 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 03:15:45,215 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:15:45,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:15:45,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1072824646, now seen corresponding path program 1 times [2020-09-25 03:15:45,216 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:15:45,216 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1575075335] [2020-09-25 03:15:45,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:15:45,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 03:15:45,239 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 03:15:45,239 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 03:15:45,244 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 03:15:45,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 03:15:45 BoogieIcfgContainer [2020-09-25 03:15:45,267 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 03:15:45,270 INFO L168 Benchmark]: Toolchain (without parser) took 33882.17 ms. Allocated memory was 138.9 MB in the beginning and 458.2 MB in the end (delta: 319.3 MB). Free memory was 100.0 MB in the beginning and 112.7 MB in the end (delta: -12.6 MB). Peak memory consumption was 306.7 MB. Max. memory is 7.1 GB. [2020-09-25 03:15:45,271 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 138.9 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 03:15:45,272 INFO L168 Benchmark]: CACSL2BoogieTranslator took 784.57 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 99.4 MB in the beginning and 169.6 MB in the end (delta: -70.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. [2020-09-25 03:15:45,273 INFO L168 Benchmark]: Boogie Preprocessor took 82.14 ms. Allocated memory is still 203.4 MB. Free memory was 169.6 MB in the beginning and 166.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-09-25 03:15:45,274 INFO L168 Benchmark]: RCFGBuilder took 880.25 ms. Allocated memory is still 203.4 MB. Free memory was 166.2 MB in the beginning and 105.7 MB in the end (delta: 60.5 MB). Peak memory consumption was 60.5 MB. Max. memory is 7.1 GB. [2020-09-25 03:15:45,275 INFO L168 Benchmark]: TraceAbstraction took 32124.19 ms. Allocated memory was 203.4 MB in the beginning and 458.2 MB in the end (delta: 254.8 MB). Free memory was 105.0 MB in the beginning and 112.7 MB in the end (delta: -7.6 MB). Peak memory consumption was 247.2 MB. Max. memory is 7.1 GB. [2020-09-25 03:15:45,279 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 138.9 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 784.57 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 99.4 MB in the beginning and 169.6 MB in the end (delta: -70.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 82.14 ms. Allocated memory is still 203.4 MB. Free memory was 169.6 MB in the beginning and 166.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 880.25 ms. Allocated memory is still 203.4 MB. Free memory was 166.2 MB in the beginning and 105.7 MB in the end (delta: 60.5 MB). Peak memory consumption was 60.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 32124.19 ms. Allocated memory was 203.4 MB in the beginning and 458.2 MB in the end (delta: 254.8 MB). Free memory was 105.0 MB in the beginning and 112.7 MB in the end (delta: -7.6 MB). Peak memory consumption was 247.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1027]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L986] SLL* head = malloc(sizeof(SLL)); [L987] head->next = ((void*)0) [L988] head->prev = ((void*)0) [L989] head->data = 0 [L991] SLL* x = head; [L992] int marked = 0; [L995] COND TRUE __VERIFIER_nondet_int() || !marked [L998] x->next = malloc(sizeof(SLL)) [L999] EXPR x->next [L999] x->next->prev = x [L1000] EXPR x->next [L1000] x = x->next [L1001] x->next = ((void*)0) [L1003] COND TRUE __VERIFIER_nondet_int() [L1005] marked = 1 [L1008] COND TRUE \read(marked) [L1009] x->data = 1 [L995] COND FALSE !(__VERIFIER_nondet_int() || !marked) [L1014] x = head [L1016] COND FALSE !(!(((void*)0) != x)) [L1017] marked = 0 [L1019] EXPR x->next [L1019] x->next != ((void*)0) && x->next->data == 0 [L1019] EXPR x->next [L1019] EXPR x->next->data [L1019] x->next != ((void*)0) && x->next->data == 0 [L1019] COND FALSE !(x->next != ((void*)0) && x->next->data == 0) [L1024] EXPR x->next [L1024] x->next != ((void*)0) && __VERIFIER_nondet_int() [L1024] x->next != ((void*)0) && __VERIFIER_nondet_int() [L1024] COND TRUE x->next != ((void*)0) && __VERIFIER_nondet_int() [L1026] EXPR x->next [L1026] x = x->next [L1027] EXPR x->data [L1027] COND TRUE !(x->data != 1) [L1027] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 156 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 32.0s, OverallIterations: 9, TraceHistogramMax: 2, AutomataDifference: 5.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1049 SDtfs, 4188 SDslu, 5462 SDs, 0 SdLazy, 3398 SolverSat, 298 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 157 GetRequests, 32 SyntacticMatches, 4 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=219occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 615 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 25.3s InterpolantComputationTime, 489 NumberOfCodeBlocks, 489 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 415 ConstructedInterpolants, 0 QuantifiedInterpolants, 233673 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 7 PerfectInterpolantSequences, 4/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...