/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/forester-heap/sll-01-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:50:04,007 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:50:04,012 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:50:04,060 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:50:04,061 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:50:04,069 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:50:04,071 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:50:04,075 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:50:04,079 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:50:04,083 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:50:04,084 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:50:04,085 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:50:04,086 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:50:04,089 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:50:04,094 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:50:04,096 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:50:04,098 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:50:04,100 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:50:04,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:50:04,110 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:50:04,113 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:50:04,114 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:50:04,115 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:50:04,116 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:50:04,123 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:50:04,123 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:50:04,123 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:50:04,130 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:50:04,131 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:50:04,132 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:50:04,132 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:50:04,135 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:50:04,136 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:50:04,137 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:50:04,138 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:50:04,139 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:50:04,140 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:50:04,140 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:50:04,140 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:50:04,141 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:50:04,142 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:50:04,143 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 07:50:04,173 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:50:04,173 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:50:04,174 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:50:04,174 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:50:04,175 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:50:04,175 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:50:04,175 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:50:04,175 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:50:04,176 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:50:04,176 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:50:04,176 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:50:04,176 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:50:04,176 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:50:04,177 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:50:04,177 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:50:04,177 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:50:04,177 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:50:04,177 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:50:04,178 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:50:04,178 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:50:04,178 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:50:04,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:50:04,179 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:50:04,179 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:50:04,179 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:50:04,179 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:50:04,179 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:50:04,179 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:50:04,180 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:50:04,180 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:50:04,690 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:50:04,715 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:50:04,721 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:50:04,723 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:50:04,723 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:50:04,724 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-01-2.i [2020-09-25 07:50:04,819 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d42f10cac/447fec8141244c19960e34918a89e2a4/FLAG30aab37e8 [2020-09-25 07:50:05,508 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:50:05,511 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/forester-heap/sll-01-2.i [2020-09-25 07:50:05,537 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d42f10cac/447fec8141244c19960e34918a89e2a4/FLAG30aab37e8 [2020-09-25 07:50:05,732 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d42f10cac/447fec8141244c19960e34918a89e2a4 [2020-09-25 07:50:05,750 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:50:05,759 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:50:05,762 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:50:05,762 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:50:05,767 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:50:05,768 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:50:05" (1/1) ... [2020-09-25 07:50:05,773 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6317371b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:05, skipping insertion in model container [2020-09-25 07:50:05,774 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:50:05" (1/1) ... [2020-09-25 07:50:05,785 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:50:05,861 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:50:06,416 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:50:06,429 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:50:06,498 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:50:06,564 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:50:06,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:06 WrapperNode [2020-09-25 07:50:06,566 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:50:06,567 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:50:06,573 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:50:06,573 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:50:06,590 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:06" (1/1) ... [2020-09-25 07:50:06,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:06" (1/1) ... [2020-09-25 07:50:06,614 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:06" (1/1) ... [2020-09-25 07:50:06,615 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:06" (1/1) ... [2020-09-25 07:50:06,637 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:06" (1/1) ... [2020-09-25 07:50:06,649 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:06" (1/1) ... [2020-09-25 07:50:06,655 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:06" (1/1) ... [2020-09-25 07:50:06,663 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:50:06,664 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:50:06,664 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:50:06,664 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:50:06,665 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:06" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:50:06,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:50:06,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:50:06,743 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:50:06,743 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 07:50:06,744 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 07:50:06,744 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 07:50:06,744 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 07:50:06,744 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 07:50:06,744 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 07:50:06,745 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 07:50:06,745 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 07:50:06,745 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 07:50:06,745 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 07:50:06,745 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 07:50:06,746 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 07:50:06,746 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 07:50:06,746 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 07:50:06,746 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 07:50:06,746 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 07:50:06,747 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 07:50:06,747 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 07:50:06,747 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 07:50:06,747 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 07:50:06,747 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 07:50:06,748 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 07:50:06,748 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 07:50:06,748 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 07:50:06,748 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 07:50:06,748 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 07:50:06,748 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 07:50:06,749 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 07:50:06,749 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 07:50:06,749 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 07:50:06,749 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 07:50:06,749 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 07:50:06,749 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 07:50:06,750 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 07:50:06,750 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 07:50:06,750 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 07:50:06,750 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 07:50:06,750 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 07:50:06,750 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 07:50:06,751 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 07:50:06,751 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 07:50:06,751 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 07:50:06,751 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 07:50:06,751 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 07:50:06,751 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 07:50:06,751 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 07:50:06,752 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 07:50:06,752 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 07:50:06,752 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 07:50:06,752 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 07:50:06,752 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:50:06,752 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 07:50:06,753 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 07:50:06,753 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:50:06,753 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 07:50:06,753 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 07:50:06,753 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 07:50:06,753 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 07:50:06,754 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-25 07:50:06,754 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 07:50:06,754 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 07:50:06,754 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-25 07:50:06,754 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 07:50:06,754 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 07:50:06,755 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-25 07:50:06,755 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 07:50:06,755 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 07:50:06,755 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 07:50:06,755 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 07:50:06,755 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 07:50:06,756 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 07:50:06,756 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 07:50:06,756 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 07:50:06,756 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 07:50:06,756 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 07:50:06,756 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 07:50:06,757 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 07:50:06,757 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 07:50:06,757 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 07:50:06,757 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 07:50:06,757 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 07:50:06,757 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 07:50:06,758 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 07:50:06,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 07:50:06,758 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 07:50:06,758 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 07:50:06,758 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 07:50:06,758 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 07:50:06,758 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 07:50:06,759 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 07:50:06,759 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 07:50:06,759 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 07:50:06,759 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 07:50:06,759 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 07:50:06,759 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 07:50:06,759 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 07:50:06,760 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 07:50:06,760 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 07:50:06,760 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 07:50:06,760 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 07:50:06,760 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 07:50:06,760 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-25 07:50:06,760 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 07:50:06,761 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:50:06,761 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:50:06,761 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:50:06,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:50:06,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:50:06,761 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:50:06,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:50:06,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:50:06,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:50:07,499 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:50:07,499 INFO L295 CfgBuilder]: Removed 30 assume(true) statements. [2020-09-25 07:50:07,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:50:07 BoogieIcfgContainer [2020-09-25 07:50:07,506 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:50:07,507 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:50:07,508 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:50:07,512 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:50:07,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:50:05" (1/3) ... [2020-09-25 07:50:07,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64e5d9c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:50:07, skipping insertion in model container [2020-09-25 07:50:07,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:06" (2/3) ... [2020-09-25 07:50:07,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64e5d9c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:50:07, skipping insertion in model container [2020-09-25 07:50:07,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:50:07" (3/3) ... [2020-09-25 07:50:07,517 INFO L109 eAbstractionObserver]: Analyzing ICFG sll-01-2.i [2020-09-25 07:50:07,531 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:50:07,543 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2020-09-25 07:50:07,567 INFO L251 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2020-09-25 07:50:07,604 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:50:07,604 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:50:07,604 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:50:07,605 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:50:07,605 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:50:07,605 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:50:07,605 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:50:07,605 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:50:07,635 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states. [2020-09-25 07:50:07,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-25 07:50:07,642 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:07,643 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:50:07,645 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:50:07,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:07,652 INFO L82 PathProgramCache]: Analyzing trace with hash 885652866, now seen corresponding path program 1 times [2020-09-25 07:50:07,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:07,664 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2117559465] [2020-09-25 07:50:07,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:07,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:07,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:08,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:08,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:50:08,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:08,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 272 [2020-09-25 07:50:08,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:08,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:08,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:50:08,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 07:50:08,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:50:08,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 07:50:08,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:50:08,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:08,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:08,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:08,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:50:08,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:08,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 07:50:08,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:08,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:08,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:08,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:08,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:08,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:08,232 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 07:50:08,233 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2117559465] [2020-09-25 07:50:08,238 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:50:08,238 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:50:08,239 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105246674] [2020-09-25 07:50:08,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:50:08,246 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:50:08,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:50:08,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:50:08,267 INFO L87 Difference]: Start difference. First operand 171 states. Second operand 5 states. [2020-09-25 07:50:08,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:50:08,669 INFO L93 Difference]: Finished difference Result 360 states and 478 transitions. [2020-09-25 07:50:08,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:50:08,672 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-09-25 07:50:08,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:50:08,689 INFO L225 Difference]: With dead ends: 360 [2020-09-25 07:50:08,689 INFO L226 Difference]: Without dead ends: 194 [2020-09-25 07:50:08,695 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:50:08,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-09-25 07:50:08,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 164. [2020-09-25 07:50:08,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-09-25 07:50:08,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 174 transitions. [2020-09-25 07:50:08,765 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 174 transitions. Word has length 12 [2020-09-25 07:50:08,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:50:08,766 INFO L479 AbstractCegarLoop]: Abstraction has 164 states and 174 transitions. [2020-09-25 07:50:08,766 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:50:08,766 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 174 transitions. [2020-09-25 07:50:08,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-09-25 07:50:08,767 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:08,767 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] [2020-09-25 07:50:08,768 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:50:08,768 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:50:08,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:08,769 INFO L82 PathProgramCache]: Analyzing trace with hash 684663316, now seen corresponding path program 1 times [2020-09-25 07:50:08,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:08,769 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1793476692] [2020-09-25 07:50:08,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:08,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:08,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:08,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:09,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:09,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 07:50:09,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:50:09,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-09-25 07:50:09,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:09,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:09,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:50:09,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-25 07:50:09,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 07:50:09,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:50:09,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:50:09,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:09,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:09,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:09,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:50:09,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:09,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 07:50:09,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:09,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:09,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:09,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:09,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:09,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:09,149 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 07:50:09,149 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1793476692] [2020-09-25 07:50:09,150 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:50:09,150 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:50:09,150 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128491678] [2020-09-25 07:50:09,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:50:09,154 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:50:09,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:50:09,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:50:09,156 INFO L87 Difference]: Start difference. First operand 164 states and 174 transitions. Second operand 4 states. [2020-09-25 07:50:09,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:50:09,465 INFO L93 Difference]: Finished difference Result 170 states and 180 transitions. [2020-09-25 07:50:09,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 07:50:09,466 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-09-25 07:50:09,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:50:09,468 INFO L225 Difference]: With dead ends: 170 [2020-09-25 07:50:09,468 INFO L226 Difference]: Without dead ends: 165 [2020-09-25 07:50:09,470 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:50:09,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-09-25 07:50:09,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2020-09-25 07:50:09,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-09-25 07:50:09,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 175 transitions. [2020-09-25 07:50:09,485 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 175 transitions. Word has length 24 [2020-09-25 07:50:09,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:50:09,486 INFO L479 AbstractCegarLoop]: Abstraction has 165 states and 175 transitions. [2020-09-25 07:50:09,486 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:50:09,486 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 175 transitions. [2020-09-25 07:50:09,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-09-25 07:50:09,487 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:09,504 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] [2020-09-25 07:50:09,505 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:50:09,505 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:50:09,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:09,506 INFO L82 PathProgramCache]: Analyzing trace with hash -265499727, now seen corresponding path program 1 times [2020-09-25 07:50:09,506 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:09,506 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1511452664] [2020-09-25 07:50:09,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:09,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:09,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:09,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:09,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:09,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 07:50:09,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:50:09,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 285 [2020-09-25 07:50:09,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:09,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:09,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:50:09,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 07:50:09,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:50:09,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:09,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:50:09,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:09,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:09,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:09,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:50:09,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:09,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:50:09,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:09,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:09,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:09,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:09,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:09,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:09,878 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 07:50:09,879 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1511452664] [2020-09-25 07:50:09,879 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:50:09,879 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 07:50:09,879 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517461414] [2020-09-25 07:50:09,880 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:50:09,880 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:50:09,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:50:09,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:50:09,881 INFO L87 Difference]: Start difference. First operand 165 states and 175 transitions. Second operand 6 states. [2020-09-25 07:50:10,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:50:10,323 INFO L93 Difference]: Finished difference Result 267 states and 284 transitions. [2020-09-25 07:50:10,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 07:50:10,324 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-09-25 07:50:10,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:50:10,327 INFO L225 Difference]: With dead ends: 267 [2020-09-25 07:50:10,327 INFO L226 Difference]: Without dead ends: 262 [2020-09-25 07:50:10,328 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:50:10,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-09-25 07:50:10,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 170. [2020-09-25 07:50:10,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-09-25 07:50:10,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 181 transitions. [2020-09-25 07:50:10,342 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 181 transitions. Word has length 26 [2020-09-25 07:50:10,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:50:10,343 INFO L479 AbstractCegarLoop]: Abstraction has 170 states and 181 transitions. [2020-09-25 07:50:10,343 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:50:10,343 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 181 transitions. [2020-09-25 07:50:10,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-09-25 07:50:10,344 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:10,344 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] [2020-09-25 07:50:10,345 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:50:10,345 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:50:10,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:10,345 INFO L82 PathProgramCache]: Analyzing trace with hash 72562886, now seen corresponding path program 1 times [2020-09-25 07:50:10,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:10,346 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1461072498] [2020-09-25 07:50:10,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:10,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:10,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:10,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:10,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:10,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:10,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:10,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-25 07:50:10,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:50:10,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 485 [2020-09-25 07:50:10,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:10,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:10,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:50:10,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 07:50:10,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 07:50:10,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:10,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:50:10,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:10,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:10,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:10,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:50:10,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:10,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:50:10,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:10,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:10,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:10,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:10,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:10,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:10,937 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 07:50:10,937 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1461072498] [2020-09-25 07:50:10,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:50:10,938 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 07:50:10,938 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968631515] [2020-09-25 07:50:10,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:50:10,939 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:50:10,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:50:10,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:50:10,940 INFO L87 Difference]: Start difference. First operand 170 states and 181 transitions. Second operand 6 states. [2020-09-25 07:50:11,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:50:11,360 INFO L93 Difference]: Finished difference Result 279 states and 297 transitions. [2020-09-25 07:50:11,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 07:50:11,361 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-09-25 07:50:11,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:50:11,363 INFO L225 Difference]: With dead ends: 279 [2020-09-25 07:50:11,363 INFO L226 Difference]: Without dead ends: 247 [2020-09-25 07:50:11,364 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 07:50:11,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2020-09-25 07:50:11,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 169. [2020-09-25 07:50:11,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-09-25 07:50:11,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 180 transitions. [2020-09-25 07:50:11,392 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 180 transitions. Word has length 32 [2020-09-25 07:50:11,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:50:11,393 INFO L479 AbstractCegarLoop]: Abstraction has 169 states and 180 transitions. [2020-09-25 07:50:11,393 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:50:11,393 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 180 transitions. [2020-09-25 07:50:11,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 07:50:11,394 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:11,395 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] [2020-09-25 07:50:11,398 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:50:11,398 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:50:11,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:11,399 INFO L82 PathProgramCache]: Analyzing trace with hash -111525919, now seen corresponding path program 1 times [2020-09-25 07:50:11,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:11,400 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1894823767] [2020-09-25 07:50:11,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:11,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:11,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:11,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:12,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:12,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 07:50:12,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:50:12,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1384 [2020-09-25 07:50:12,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:12,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:12,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:50:12,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-25 07:50:12,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:50:12,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:50:12,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:50:12,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:12,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:12,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:12,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:50:12,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:12,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 07:50:12,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:12,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:12,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:12,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:12,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:12,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:12,956 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 07:50:12,957 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1894823767] [2020-09-25 07:50:12,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:50:12,958 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 07:50:12,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020978535] [2020-09-25 07:50:12,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 07:50:12,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:50:12,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 07:50:12,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-25 07:50:12,960 INFO L87 Difference]: Start difference. First operand 169 states and 180 transitions. Second operand 8 states. [2020-09-25 07:50:13,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:50:13,588 INFO L93 Difference]: Finished difference Result 260 states and 277 transitions. [2020-09-25 07:50:13,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 07:50:13,589 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2020-09-25 07:50:13,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:50:13,591 INFO L225 Difference]: With dead ends: 260 [2020-09-25 07:50:13,592 INFO L226 Difference]: Without dead ends: 255 [2020-09-25 07:50:13,593 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-09-25 07:50:13,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2020-09-25 07:50:13,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 158. [2020-09-25 07:50:13,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-09-25 07:50:13,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 168 transitions. [2020-09-25 07:50:13,604 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 168 transitions. Word has length 33 [2020-09-25 07:50:13,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:50:13,605 INFO L479 AbstractCegarLoop]: Abstraction has 158 states and 168 transitions. [2020-09-25 07:50:13,605 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 07:50:13,605 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 168 transitions. [2020-09-25 07:50:13,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-09-25 07:50:13,607 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:13,607 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] [2020-09-25 07:50:13,607 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:50:13,607 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:50:13,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:13,608 INFO L82 PathProgramCache]: Analyzing trace with hash 2123188648, now seen corresponding path program 1 times [2020-09-25 07:50:13,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:13,609 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1261204258] [2020-09-25 07:50:13,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:13,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:13,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:13,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:13,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:14,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:14,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 07:50:14,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:50:14,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 479 [2020-09-25 07:50:14,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:14,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:14,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:50:14,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 07:50:14,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:50:14,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:14,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:50:14,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:14,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:14,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:14,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:50:14,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:14,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:50:14,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:14,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:14,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:14,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:14,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:14,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:14,179 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 07:50:14,180 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1261204258] [2020-09-25 07:50:14,180 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:50:14,180 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 07:50:14,180 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124079127] [2020-09-25 07:50:14,181 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 07:50:14,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:50:14,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 07:50:14,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:50:14,182 INFO L87 Difference]: Start difference. First operand 158 states and 168 transitions. Second operand 7 states. [2020-09-25 07:50:14,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:50:14,818 INFO L93 Difference]: Finished difference Result 242 states and 258 transitions. [2020-09-25 07:50:14,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 07:50:14,819 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 36 [2020-09-25 07:50:14,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:50:14,824 INFO L225 Difference]: With dead ends: 242 [2020-09-25 07:50:14,824 INFO L226 Difference]: Without dead ends: 238 [2020-09-25 07:50:14,825 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-09-25 07:50:14,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-09-25 07:50:14,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 154. [2020-09-25 07:50:14,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-09-25 07:50:14,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 164 transitions. [2020-09-25 07:50:14,837 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 164 transitions. Word has length 36 [2020-09-25 07:50:14,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:50:14,838 INFO L479 AbstractCegarLoop]: Abstraction has 154 states and 164 transitions. [2020-09-25 07:50:14,838 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 07:50:14,839 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 164 transitions. [2020-09-25 07:50:14,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-25 07:50:14,842 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:14,842 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] [2020-09-25 07:50:14,843 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 07:50:14,843 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:50:14,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:14,844 INFO L82 PathProgramCache]: Analyzing trace with hash 1785983955, now seen corresponding path program 1 times [2020-09-25 07:50:14,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:14,844 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1680073393] [2020-09-25 07:50:14,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:14,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:14,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:14,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:14,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:15,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:15,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:15,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:15,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 07:50:15,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:50:15,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 467 [2020-09-25 07:50:15,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:15,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:15,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:50:15,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-09-25 07:50:15,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:50:15,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:15,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:50:15,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:15,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:15,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:15,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:50:15,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:15,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:50:15,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:15,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:15,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:15,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:15,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:15,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:15,380 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 07:50:15,381 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1680073393] [2020-09-25 07:50:15,381 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:50:15,381 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:50:15,382 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986764870] [2020-09-25 07:50:15,382 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:50:15,383 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:50:15,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:50:15,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:50:15,383 INFO L87 Difference]: Start difference. First operand 154 states and 164 transitions. Second operand 4 states. [2020-09-25 07:50:15,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:50:15,638 INFO L93 Difference]: Finished difference Result 196 states and 210 transitions. [2020-09-25 07:50:15,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 07:50:15,638 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2020-09-25 07:50:15,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:50:15,640 INFO L225 Difference]: With dead ends: 196 [2020-09-25 07:50:15,640 INFO L226 Difference]: Without dead ends: 194 [2020-09-25 07:50:15,641 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:50:15,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-09-25 07:50:15,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 156. [2020-09-25 07:50:15,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-09-25 07:50:15,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 167 transitions. [2020-09-25 07:50:15,650 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 167 transitions. Word has length 40 [2020-09-25 07:50:15,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:50:15,650 INFO L479 AbstractCegarLoop]: Abstraction has 156 states and 167 transitions. [2020-09-25 07:50:15,650 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:50:15,651 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 167 transitions. [2020-09-25 07:50:15,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-09-25 07:50:15,660 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:15,660 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] [2020-09-25 07:50:15,660 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 07:50:15,660 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:50:15,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:15,661 INFO L82 PathProgramCache]: Analyzing trace with hash -1657004682, now seen corresponding path program 1 times [2020-09-25 07:50:15,661 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:15,661 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1969926490] [2020-09-25 07:50:15,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:15,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:15,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:15,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:15,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:16,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:16,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:16,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:16,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:16,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-25 07:50:16,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:50:16,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 843 [2020-09-25 07:50:16,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:16,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:16,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:50:16,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-09-25 07:50:16,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:50:16,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:16,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:50:16,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:16,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:16,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:16,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:50:16,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:16,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:50:16,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:16,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:16,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:16,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:16,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:16,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:16,583 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 07:50:16,584 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1969926490] [2020-09-25 07:50:16,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:50:16,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:50:16,585 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3066664] [2020-09-25 07:50:16,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:50:16,585 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:50:16,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:50:16,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:50:16,586 INFO L87 Difference]: Start difference. First operand 156 states and 167 transitions. Second operand 4 states. [2020-09-25 07:50:16,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:50:16,803 INFO L93 Difference]: Finished difference Result 156 states and 167 transitions. [2020-09-25 07:50:16,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 07:50:16,804 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 42 [2020-09-25 07:50:16,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:50:16,805 INFO L225 Difference]: With dead ends: 156 [2020-09-25 07:50:16,805 INFO L226 Difference]: Without dead ends: 154 [2020-09-25 07:50:16,809 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:50:16,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-09-25 07:50:16,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2020-09-25 07:50:16,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-09-25 07:50:16,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 165 transitions. [2020-09-25 07:50:16,819 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 165 transitions. Word has length 42 [2020-09-25 07:50:16,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:50:16,820 INFO L479 AbstractCegarLoop]: Abstraction has 154 states and 165 transitions. [2020-09-25 07:50:16,820 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:50:16,820 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 165 transitions. [2020-09-25 07:50:16,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-25 07:50:16,825 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:16,826 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] [2020-09-25 07:50:16,827 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 07:50:16,827 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:50:16,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:16,827 INFO L82 PathProgramCache]: Analyzing trace with hash 1175512125, now seen corresponding path program 1 times [2020-09-25 07:50:16,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:16,830 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [880660608] [2020-09-25 07:50:16,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:16,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:16,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:16,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:16,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:17,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:17,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:17,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 07:50:17,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:50:17,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1011 [2020-09-25 07:50:17,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:17,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:17,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:50:17,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 07:50:17,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 07:50:17,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:17,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:50:17,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:17,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:17,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:17,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:50:17,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:17,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:50:17,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:17,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:17,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:17,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:17,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:17,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:17,998 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 07:50:18,004 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [880660608] [2020-09-25 07:50:18,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:50:18,006 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 07:50:18,006 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696769859] [2020-09-25 07:50:18,008 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 07:50:18,008 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:50:18,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 07:50:18,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:50:18,009 INFO L87 Difference]: Start difference. First operand 154 states and 165 transitions. Second operand 7 states. [2020-09-25 07:50:18,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:50:18,613 INFO L93 Difference]: Finished difference Result 354 states and 382 transitions. [2020-09-25 07:50:18,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 07:50:18,614 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 46 [2020-09-25 07:50:18,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:50:18,617 INFO L225 Difference]: With dead ends: 354 [2020-09-25 07:50:18,617 INFO L226 Difference]: Without dead ends: 283 [2020-09-25 07:50:18,618 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-09-25 07:50:18,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2020-09-25 07:50:18,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 178. [2020-09-25 07:50:18,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-09-25 07:50:18,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 191 transitions. [2020-09-25 07:50:18,632 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 191 transitions. Word has length 46 [2020-09-25 07:50:18,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:50:18,632 INFO L479 AbstractCegarLoop]: Abstraction has 178 states and 191 transitions. [2020-09-25 07:50:18,632 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 07:50:18,633 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 191 transitions. [2020-09-25 07:50:18,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-09-25 07:50:18,634 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:18,634 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] [2020-09-25 07:50:18,634 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 07:50:18,635 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:50:18,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:18,635 INFO L82 PathProgramCache]: Analyzing trace with hash -1283803554, now seen corresponding path program 1 times [2020-09-25 07:50:18,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:18,636 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [942723636] [2020-09-25 07:50:18,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:18,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:18,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:18,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:18,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:19,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:19,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:19,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-25 07:50:19,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:50:19,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 720 [2020-09-25 07:50:19,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:19,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:19,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:50:19,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-09-25 07:50:19,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 07:50:19,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:19,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:50:19,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:19,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:19,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:19,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:50:19,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:19,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:50:19,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:19,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:19,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:19,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:19,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:19,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:19,412 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 07:50:19,413 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [942723636] [2020-09-25 07:50:19,413 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:50:19,413 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:50:19,414 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107767101] [2020-09-25 07:50:19,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:50:19,414 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:50:19,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:50:19,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:50:19,415 INFO L87 Difference]: Start difference. First operand 178 states and 191 transitions. Second operand 4 states. [2020-09-25 07:50:19,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:50:19,617 INFO L93 Difference]: Finished difference Result 184 states and 197 transitions. [2020-09-25 07:50:19,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 07:50:19,618 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 50 [2020-09-25 07:50:19,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:50:19,619 INFO L225 Difference]: With dead ends: 184 [2020-09-25 07:50:19,620 INFO L226 Difference]: Without dead ends: 179 [2020-09-25 07:50:19,620 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:50:19,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2020-09-25 07:50:19,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2020-09-25 07:50:19,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2020-09-25 07:50:19,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 192 transitions. [2020-09-25 07:50:19,630 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 192 transitions. Word has length 50 [2020-09-25 07:50:19,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:50:19,631 INFO L479 AbstractCegarLoop]: Abstraction has 179 states and 192 transitions. [2020-09-25 07:50:19,631 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:50:19,631 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 192 transitions. [2020-09-25 07:50:19,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 07:50:19,632 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:19,632 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] [2020-09-25 07:50:19,633 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 07:50:19,633 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:50:19,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:19,633 INFO L82 PathProgramCache]: Analyzing trace with hash 109930128, now seen corresponding path program 1 times [2020-09-25 07:50:19,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:19,634 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [790844835] [2020-09-25 07:50:19,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:19,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:19,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:19,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:19,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:19,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:20,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:20,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:20,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:20,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:20,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:20,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:20,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 07:50:20,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 07:50:20,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1198 [2020-09-25 07:50:20,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:20,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:20,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:50:20,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-09-25 07:50:20,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 07:50:20,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:20,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:50:20,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:20,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:20,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:20,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:50:20,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:20,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:50:20,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:20,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:20,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:20,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:20,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:20,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:20,893 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 07:50:20,893 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [790844835] [2020-09-25 07:50:20,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:50:20,894 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:50:20,895 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382991180] [2020-09-25 07:50:20,896 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:50:20,896 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:50:20,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:50:20,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:50:20,897 INFO L87 Difference]: Start difference. First operand 179 states and 192 transitions. Second operand 4 states. [2020-09-25 07:50:21,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:50:21,199 INFO L93 Difference]: Finished difference Result 188 states and 202 transitions. [2020-09-25 07:50:21,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 07:50:21,200 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-09-25 07:50:21,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:50:21,202 INFO L225 Difference]: With dead ends: 188 [2020-09-25 07:50:21,202 INFO L226 Difference]: Without dead ends: 186 [2020-09-25 07:50:21,203 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:50:21,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2020-09-25 07:50:21,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 177. [2020-09-25 07:50:21,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2020-09-25 07:50:21,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 190 transitions. [2020-09-25 07:50:21,223 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 190 transitions. Word has length 51 [2020-09-25 07:50:21,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:50:21,224 INFO L479 AbstractCegarLoop]: Abstraction has 177 states and 190 transitions. [2020-09-25 07:50:21,224 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:50:21,224 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 190 transitions. [2020-09-25 07:50:21,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-25 07:50:21,226 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:21,226 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] [2020-09-25 07:50:21,226 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 07:50:21,227 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:50:21,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:21,227 INFO L82 PathProgramCache]: Analyzing trace with hash 2118419099, now seen corresponding path program 1 times [2020-09-25 07:50:21,228 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:21,228 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1554744466] [2020-09-25 07:50:21,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:21,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:21,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:21,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:21,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:21,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:22,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:22,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-25 07:50:22,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:50:22,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 988 [2020-09-25 07:50:22,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:22,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:22,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:50:22,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-09-25 07:50:22,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:50:22,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:22,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:50:22,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:22,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:22,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:22,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:50:22,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:22,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:50:22,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:22,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:22,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:22,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:22,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:22,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:22,347 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 07:50:22,347 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1554744466] [2020-09-25 07:50:22,348 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:50:22,348 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 07:50:22,348 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135115140] [2020-09-25 07:50:22,349 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:50:22,349 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:50:22,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:50:22,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:50:22,350 INFO L87 Difference]: Start difference. First operand 177 states and 190 transitions. Second operand 6 states. [2020-09-25 07:50:22,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:50:22,686 INFO L93 Difference]: Finished difference Result 204 states and 219 transitions. [2020-09-25 07:50:22,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 07:50:22,686 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2020-09-25 07:50:22,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:50:22,688 INFO L225 Difference]: With dead ends: 204 [2020-09-25 07:50:22,688 INFO L226 Difference]: Without dead ends: 199 [2020-09-25 07:50:22,689 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:50:22,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2020-09-25 07:50:22,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 182. [2020-09-25 07:50:22,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-09-25 07:50:22,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 196 transitions. [2020-09-25 07:50:22,702 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 196 transitions. Word has length 52 [2020-09-25 07:50:22,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:50:22,703 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 196 transitions. [2020-09-25 07:50:22,703 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:50:22,703 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 196 transitions. [2020-09-25 07:50:22,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-25 07:50:22,704 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:22,704 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] [2020-09-25 07:50:22,704 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 07:50:22,704 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:50:22,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:22,705 INFO L82 PathProgramCache]: Analyzing trace with hash -1565892499, now seen corresponding path program 1 times [2020-09-25 07:50:22,705 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:22,705 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2039458566] [2020-09-25 07:50:22,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:22,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:22,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:22,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:23,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:23,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:25,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:25,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:25,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 07:50:25,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:50:25,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2614 [2020-09-25 07:50:25,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:25,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:25,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 07:50:25,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 07:50:25,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-25 07:50:25,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:25,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:50:25,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:25,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:25,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:25,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:50:25,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:25,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:50:25,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:25,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:25,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:25,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:25,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:25,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:25,776 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 07:50:25,777 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2039458566] [2020-09-25 07:50:25,777 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:50:25,777 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-25 07:50:25,777 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44425955] [2020-09-25 07:50:25,778 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 07:50:25,778 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:50:25,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 07:50:25,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-09-25 07:50:25,779 INFO L87 Difference]: Start difference. First operand 182 states and 196 transitions. Second operand 14 states. [2020-09-25 07:50:26,812 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2020-09-25 07:50:26,991 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-09-25 07:50:27,480 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2020-09-25 07:50:28,404 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2020-09-25 07:50:28,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:50:28,766 INFO L93 Difference]: Finished difference Result 731 states and 786 transitions. [2020-09-25 07:50:28,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-25 07:50:28,767 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 53 [2020-09-25 07:50:28,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:50:28,776 INFO L225 Difference]: With dead ends: 731 [2020-09-25 07:50:28,776 INFO L226 Difference]: Without dead ends: 728 [2020-09-25 07:50:28,777 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=326, Invalid=934, Unknown=0, NotChecked=0, Total=1260 [2020-09-25 07:50:28,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2020-09-25 07:50:28,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 202. [2020-09-25 07:50:28,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-09-25 07:50:28,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 219 transitions. [2020-09-25 07:50:28,808 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 219 transitions. Word has length 53 [2020-09-25 07:50:28,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:50:28,808 INFO L479 AbstractCegarLoop]: Abstraction has 202 states and 219 transitions. [2020-09-25 07:50:28,808 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 07:50:28,809 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 219 transitions. [2020-09-25 07:50:28,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-09-25 07:50:28,810 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:28,811 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] [2020-09-25 07:50:28,811 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 07:50:28,811 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:50:28,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:28,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1523074089, now seen corresponding path program 1 times [2020-09-25 07:50:28,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:28,812 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [593190771] [2020-09-25 07:50:28,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:28,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:28,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:28,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:28,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:29,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:29,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:29,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:29,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:29,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:30,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:30,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-25 07:50:30,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 07:50:30,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1734 [2020-09-25 07:50:30,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:30,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:30,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:50:30,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 07:50:30,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 07:50:30,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:50:30,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:50:30,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:30,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:30,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:30,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:50:30,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:30,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:50:30,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:30,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:30,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:30,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:30,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:30,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:50:30,645 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 07:50:30,645 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [593190771] [2020-09-25 07:50:30,645 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:50:30,646 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 07:50:30,646 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613808074] [2020-09-25 07:50:30,646 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:50:30,646 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:50:30,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:50:30,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:50:30,647 INFO L87 Difference]: Start difference. First operand 202 states and 219 transitions. Second operand 6 states. [2020-09-25 07:50:31,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:50:31,135 INFO L93 Difference]: Finished difference Result 287 states and 311 transitions. [2020-09-25 07:50:31,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:50:31,136 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2020-09-25 07:50:31,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:50:31,138 INFO L225 Difference]: With dead ends: 287 [2020-09-25 07:50:31,139 INFO L226 Difference]: Without dead ends: 259 [2020-09-25 07:50:31,140 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 07:50:31,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-09-25 07:50:31,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 240. [2020-09-25 07:50:31,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-09-25 07:50:31,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 265 transitions. [2020-09-25 07:50:31,152 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 265 transitions. Word has length 55 [2020-09-25 07:50:31,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:50:31,152 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 265 transitions. [2020-09-25 07:50:31,152 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:50:31,152 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 265 transitions. [2020-09-25 07:50:31,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-25 07:50:31,153 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:31,153 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] [2020-09-25 07:50:31,154 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 07:50:31,154 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:50:31,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:31,154 INFO L82 PathProgramCache]: Analyzing trace with hash -1636675303, now seen corresponding path program 1 times [2020-09-25 07:50:31,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:31,155 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1670954944] [2020-09-25 07:50:31,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:31,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:31,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:31,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:31,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:31,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:32,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:34,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:34,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-25 07:50:34,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:50:34,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3505 [2020-09-25 07:50:34,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:34,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:34,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 07:50:34,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 07:50:34,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 07:50:34,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:50:35,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:50:35,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:35,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:35,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:35,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:50:35,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:35,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:50:35,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:35,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:35,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:35,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:35,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:35,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:50:35,233 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 07:50:35,234 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1670954944] [2020-09-25 07:50:35,234 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:50:35,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-09-25 07:50:35,235 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067889089] [2020-09-25 07:50:35,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 07:50:35,235 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:50:35,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 07:50:35,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2020-09-25 07:50:35,236 INFO L87 Difference]: Start difference. First operand 240 states and 265 transitions. Second operand 15 states. [2020-09-25 07:50:37,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:50:37,676 INFO L93 Difference]: Finished difference Result 581 states and 629 transitions. [2020-09-25 07:50:37,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-25 07:50:37,677 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 57 [2020-09-25 07:50:37,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:50:37,682 INFO L225 Difference]: With dead ends: 581 [2020-09-25 07:50:37,682 INFO L226 Difference]: Without dead ends: 578 [2020-09-25 07:50:37,685 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=271, Invalid=851, Unknown=0, NotChecked=0, Total=1122 [2020-09-25 07:50:37,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2020-09-25 07:50:37,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 244. [2020-09-25 07:50:37,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-09-25 07:50:37,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 269 transitions. [2020-09-25 07:50:37,700 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 269 transitions. Word has length 57 [2020-09-25 07:50:37,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:50:37,701 INFO L479 AbstractCegarLoop]: Abstraction has 244 states and 269 transitions. [2020-09-25 07:50:37,701 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 07:50:37,701 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 269 transitions. [2020-09-25 07:50:37,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-25 07:50:37,702 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:37,702 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:50:37,702 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-25 07:50:37,702 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:50:37,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:37,703 INFO L82 PathProgramCache]: Analyzing trace with hash -1650505471, now seen corresponding path program 1 times [2020-09-25 07:50:37,703 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:37,703 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1497162319] [2020-09-25 07:50:37,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:37,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:37,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:37,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:37,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:38,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:38,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:38,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:38,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-09-25 07:50:38,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:50:38,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1007 [2020-09-25 07:50:38,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:38,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:38,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:50:38,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 07:50:38,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 07:50:38,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:50:38,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:50:38,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:38,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:38,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:38,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:50:38,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:38,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:50:38,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:38,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:38,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:38,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:38,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:38,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:50:38,831 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:50:38,832 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1497162319] [2020-09-25 07:50:38,832 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:50:38,832 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 07:50:38,833 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372408199] [2020-09-25 07:50:38,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 07:50:38,833 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:50:38,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 07:50:38,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:50:38,834 INFO L87 Difference]: Start difference. First operand 244 states and 269 transitions. Second operand 7 states. [2020-09-25 07:50:39,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:50:39,324 INFO L93 Difference]: Finished difference Result 394 states and 431 transitions. [2020-09-25 07:50:39,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 07:50:39,325 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2020-09-25 07:50:39,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:50:39,327 INFO L225 Difference]: With dead ends: 394 [2020-09-25 07:50:39,327 INFO L226 Difference]: Without dead ends: 287 [2020-09-25 07:50:39,328 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-09-25 07:50:39,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-09-25 07:50:39,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 245. [2020-09-25 07:50:39,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-09-25 07:50:39,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 268 transitions. [2020-09-25 07:50:39,349 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 268 transitions. Word has length 57 [2020-09-25 07:50:39,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:50:39,350 INFO L479 AbstractCegarLoop]: Abstraction has 245 states and 268 transitions. [2020-09-25 07:50:39,350 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 07:50:39,350 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 268 transitions. [2020-09-25 07:50:39,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-09-25 07:50:39,358 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:39,359 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 07:50:39,359 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-25 07:50:39,359 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:50:39,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:39,360 INFO L82 PathProgramCache]: Analyzing trace with hash 682683072, now seen corresponding path program 1 times [2020-09-25 07:50:39,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:39,360 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [479711131] [2020-09-25 07:50:39,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:39,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:39,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:39,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:39,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:40,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:43,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:43,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-09-25 07:50:43,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:50:43,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3714 [2020-09-25 07:50:43,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:43,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:43,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:50:43,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-09-25 07:50:43,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:50:43,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:50:43,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:50:43,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:43,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:43,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:43,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:50:43,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:43,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:50:43,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:43,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:43,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:43,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:43,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:43,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:43,213 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 07:50:43,214 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [479711131] [2020-09-25 07:50:43,214 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:50:43,215 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 07:50:43,215 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320361818] [2020-09-25 07:50:43,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 07:50:43,217 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:50:43,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 07:50:43,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-25 07:50:43,219 INFO L87 Difference]: Start difference. First operand 245 states and 268 transitions. Second operand 8 states. [2020-09-25 07:50:43,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:50:43,668 INFO L93 Difference]: Finished difference Result 262 states and 286 transitions. [2020-09-25 07:50:43,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 07:50:43,669 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 59 [2020-09-25 07:50:43,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:50:43,670 INFO L225 Difference]: With dead ends: 262 [2020-09-25 07:50:43,670 INFO L226 Difference]: Without dead ends: 257 [2020-09-25 07:50:43,671 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-09-25 07:50:43,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-09-25 07:50:43,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 234. [2020-09-25 07:50:43,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-09-25 07:50:43,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 256 transitions. [2020-09-25 07:50:43,683 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 256 transitions. Word has length 59 [2020-09-25 07:50:43,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:50:43,683 INFO L479 AbstractCegarLoop]: Abstraction has 234 states and 256 transitions. [2020-09-25 07:50:43,683 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 07:50:43,683 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 256 transitions. [2020-09-25 07:50:43,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-25 07:50:43,684 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:43,684 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 07:50:43,684 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-25 07:50:43,685 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:50:43,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:43,685 INFO L82 PathProgramCache]: Analyzing trace with hash -984681049, now seen corresponding path program 1 times [2020-09-25 07:50:43,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:43,686 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1879770201] [2020-09-25 07:50:43,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:43,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:43,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:43,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:44,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:44,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:45,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:46,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:46,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:47,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:47,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:47,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:48,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:48,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-25 07:50:48,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 07:50:48,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 07:50:48,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:48,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:48,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 07:50:48,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 07:50:48,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 07:50:48,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:48,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:50:48,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:48,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:48,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:48,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:50:48,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:48,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:50:48,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:48,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:48,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:48,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:48,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:48,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:48,970 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 07:50:48,970 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1879770201] [2020-09-25 07:50:48,971 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:50:48,971 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 07:50:48,971 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72914838] [2020-09-25 07:50:48,975 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 07:50:48,977 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:50:48,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 07:50:48,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-09-25 07:50:48,978 INFO L87 Difference]: Start difference. First operand 234 states and 256 transitions. Second operand 13 states. [2020-09-25 07:50:50,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:50:50,586 INFO L93 Difference]: Finished difference Result 464 states and 498 transitions. [2020-09-25 07:50:50,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-25 07:50:50,586 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 62 [2020-09-25 07:50:50,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:50:50,588 INFO L225 Difference]: With dead ends: 464 [2020-09-25 07:50:50,588 INFO L226 Difference]: Without dead ends: 461 [2020-09-25 07:50:50,591 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=213, Invalid=657, Unknown=0, NotChecked=0, Total=870 [2020-09-25 07:50:50,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2020-09-25 07:50:50,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 243. [2020-09-25 07:50:50,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2020-09-25 07:50:50,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 266 transitions. [2020-09-25 07:50:50,605 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 266 transitions. Word has length 62 [2020-09-25 07:50:50,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:50:50,605 INFO L479 AbstractCegarLoop]: Abstraction has 243 states and 266 transitions. [2020-09-25 07:50:50,605 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 07:50:50,605 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 266 transitions. [2020-09-25 07:50:50,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-25 07:50:50,606 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:50,606 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, 1] [2020-09-25 07:50:50,607 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-09-25 07:50:50,607 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:50:50,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:50,607 INFO L82 PathProgramCache]: Analyzing trace with hash -649286859, now seen corresponding path program 1 times [2020-09-25 07:50:50,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:50,608 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [714006074] [2020-09-25 07:50:50,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:50,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:50,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:50,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:50,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:50,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 07:50:50,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:50:50,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-09-25 07:50:50,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:50,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:50,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:50:50,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-09-25 07:50:50,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 07:50:50,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:50:50,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:50:50,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:50,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:50,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:50,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:50:50,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:50,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:50:50,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:50,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:50,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:50,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:50,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:50,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:50:50,811 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:50:50,812 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [714006074] [2020-09-25 07:50:50,812 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:50:50,812 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:50:50,812 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533309582] [2020-09-25 07:50:50,814 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:50:50,814 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:50:50,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:50:50,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:50:50,815 INFO L87 Difference]: Start difference. First operand 243 states and 266 transitions. Second operand 4 states. [2020-09-25 07:50:51,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:50:51,037 INFO L93 Difference]: Finished difference Result 296 states and 328 transitions. [2020-09-25 07:50:51,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 07:50:51,037 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 64 [2020-09-25 07:50:51,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:50:51,040 INFO L225 Difference]: With dead ends: 296 [2020-09-25 07:50:51,040 INFO L226 Difference]: Without dead ends: 294 [2020-09-25 07:50:51,040 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:50:51,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-09-25 07:50:51,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 280. [2020-09-25 07:50:51,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-09-25 07:50:51,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 310 transitions. [2020-09-25 07:50:51,055 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 310 transitions. Word has length 64 [2020-09-25 07:50:51,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:50:51,055 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 310 transitions. [2020-09-25 07:50:51,055 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:50:51,056 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 310 transitions. [2020-09-25 07:50:51,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-25 07:50:51,056 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:51,057 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, 1] [2020-09-25 07:50:51,057 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-09-25 07:50:51,059 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:50:51,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:51,059 INFO L82 PathProgramCache]: Analyzing trace with hash -1878952235, now seen corresponding path program 1 times [2020-09-25 07:50:51,059 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:51,060 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2046022588] [2020-09-25 07:50:51,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:51,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:51,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:51,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:51,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 07:50:51,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:51,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-25 07:50:51,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:51,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:51,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:50:51,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-09-25 07:50:51,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:50:51,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:51,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:50:51,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:51,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:51,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:51,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:50:51,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:51,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:50:51,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:51,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:51,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:51,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:51,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:51,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:51,189 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:50:51,189 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2046022588] [2020-09-25 07:50:51,189 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:50:51,189 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:50:51,190 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557196761] [2020-09-25 07:50:51,190 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:50:51,190 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:50:51,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:50:51,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:50:51,191 INFO L87 Difference]: Start difference. First operand 280 states and 310 transitions. Second operand 4 states. [2020-09-25 07:50:51,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:50:51,430 INFO L93 Difference]: Finished difference Result 467 states and 522 transitions. [2020-09-25 07:50:51,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 07:50:51,431 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 64 [2020-09-25 07:50:51,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:50:51,432 INFO L225 Difference]: With dead ends: 467 [2020-09-25 07:50:51,433 INFO L226 Difference]: Without dead ends: 323 [2020-09-25 07:50:51,433 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:50:51,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-09-25 07:50:51,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 273. [2020-09-25 07:50:51,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273 states. [2020-09-25 07:50:51,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 303 transitions. [2020-09-25 07:50:51,446 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 303 transitions. Word has length 64 [2020-09-25 07:50:51,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:50:51,447 INFO L479 AbstractCegarLoop]: Abstraction has 273 states and 303 transitions. [2020-09-25 07:50:51,447 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:50:51,447 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 303 transitions. [2020-09-25 07:50:51,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-25 07:50:51,448 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:51,448 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:50:51,448 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-09-25 07:50:51,449 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:50:51,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:51,449 INFO L82 PathProgramCache]: Analyzing trace with hash 899171313, now seen corresponding path program 1 times [2020-09-25 07:50:51,449 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:51,449 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1644596692] [2020-09-25 07:50:51,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:51,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:51,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:51,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:51,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:51,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:51,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:51,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:52,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:52,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking...