/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=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:15:15,311 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:15:15,314 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:15:15,342 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:15:15,342 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:15:15,343 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:15:15,345 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:15:15,347 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:15:15,349 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:15:15,350 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:15:15,351 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:15:15,353 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:15:15,353 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:15:15,354 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:15:15,356 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:15:15,357 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:15:15,358 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:15:15,360 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:15:15,362 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:15:15,364 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:15:15,366 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:15:15,367 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:15:15,369 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:15:15,370 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:15:15,373 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:15:15,373 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:15:15,374 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:15:15,375 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:15:15,375 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:15:15,377 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:15:15,377 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:15:15,378 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:15:15,379 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:15:15,380 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:15:15,381 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:15:15,382 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:15:15,382 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:15:15,383 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:15:15,383 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:15:15,384 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:15:15,385 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:15:15,386 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 05:15:15,417 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:15:15,418 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:15:15,420 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:15:15,420 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:15:15,421 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:15:15,421 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:15:15,421 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:15:15,421 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:15:15,422 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:15:15,422 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:15:15,422 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:15:15,422 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:15:15,422 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:15:15,424 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:15:15,424 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:15:15,424 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:15:15,424 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:15:15,424 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:15:15,425 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:15:15,425 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:15:15,425 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:15:15,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:15:15,427 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:15:15,428 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:15:15,428 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:15:15,428 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:15:15,428 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:15:15,428 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:15:15,429 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:15:15,429 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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;log-additional-information=true; [2020-09-25 05:15:15,935 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:15:15,960 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:15:15,965 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:15:15,967 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:15:15,967 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:15:15,968 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product33.cil.c [2020-09-25 05:15:16,045 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5a059e077/fcfe1070de184ceda8acce14d0a1c5ae/FLAG92516a738 [2020-09-25 05:15:16,591 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:15:16,592 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product33.cil.c [2020-09-25 05:15:16,609 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5a059e077/fcfe1070de184ceda8acce14d0a1c5ae/FLAG92516a738 [2020-09-25 05:15:16,892 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5a059e077/fcfe1070de184ceda8acce14d0a1c5ae [2020-09-25 05:15:16,905 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:15:16,912 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:15:16,914 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:15:16,914 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:15:16,919 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:15:16,920 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:15:16" (1/1) ... [2020-09-25 05:15:16,925 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7845d484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:15:16, skipping insertion in model container [2020-09-25 05:15:16,925 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:15:16" (1/1) ... [2020-09-25 05:15:16,936 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:15:17,018 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:15:17,378 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:15:17,394 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:15:17,567 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:15:17,614 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:15:17,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:15:17 WrapperNode [2020-09-25 05:15:17,615 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:15:17,616 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:15:17,616 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:15:17,616 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:15:17,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:15:17" (1/1) ... [2020-09-25 05:15:17,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:15:17" (1/1) ... [2020-09-25 05:15:17,652 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:15:17" (1/1) ... [2020-09-25 05:15:17,653 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:15:17" (1/1) ... [2020-09-25 05:15:17,686 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:15:17" (1/1) ... [2020-09-25 05:15:17,701 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:15:17" (1/1) ... [2020-09-25 05:15:17,708 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:15:17" (1/1) ... [2020-09-25 05:15:17,732 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:15:17,733 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:15:17,736 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:15:17,736 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:15:17,739 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:15:17" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:15:17,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:15:17,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:15:17,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 05:15:17,832 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 05:15:17,832 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 05:15:17,832 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 05:15:17,832 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 05:15:17,833 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 05:15:17,833 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 05:15:17,833 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 05:15:17,833 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 05:15:17,834 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 05:15:17,834 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 05:15:17,834 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 05:15:17,834 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:15:17,834 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 05:15:17,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 05:15:17,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 05:15:17,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 05:15:17,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 05:15:17,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 05:15:17,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 05:15:17,836 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 05:15:17,836 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 05:15:17,836 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 05:15:17,836 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 05:15:17,837 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 05:15:17,837 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 05:15:17,837 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 05:15:17,837 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 05:15:17,837 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 05:15:17,837 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 05:15:17,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 05:15:17,838 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 05:15:17,838 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 05:15:17,838 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 05:15:17,838 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 05:15:17,839 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:15:17,839 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:15:17,839 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 05:15:17,839 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 05:15:17,839 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 05:15:17,839 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 05:15:17,840 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 05:15:17,840 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 05:15:17,840 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 05:15:17,840 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 05:15:17,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 05:15:17,840 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 05:15:17,841 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 05:15:17,841 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 05:15:17,841 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 05:15:17,841 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 05:15:17,841 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 05:15:17,841 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 05:15:17,842 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 05:15:17,842 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 05:15:17,842 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 05:15:17,842 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:15:17,842 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 05:15:17,842 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 05:15:17,843 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 05:15:17,843 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 05:15:17,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 05:15:17,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 05:15:17,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 05:15:17,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 05:15:17,844 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 05:15:17,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 05:15:17,844 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 05:15:17,844 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 05:15:17,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 05:15:17,844 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 05:15:17,845 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 05:15:17,845 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 05:15:17,845 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 05:15:17,845 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 05:15:17,845 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 05:15:17,845 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 05:15:17,846 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 05:15:17,846 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 05:15:17,846 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 05:15:17,846 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 05:15:17,846 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 05:15:17,846 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 05:15:17,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:15:17,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 05:15:17,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:15:19,196 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:15:19,196 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 05:15:19,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:15:19 BoogieIcfgContainer [2020-09-25 05:15:19,204 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:15:19,205 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:15:19,205 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:15:19,209 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:15:19,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:15:16" (1/3) ... [2020-09-25 05:15:19,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f80098c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:15:19, skipping insertion in model container [2020-09-25 05:15:19,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:15:17" (2/3) ... [2020-09-25 05:15:19,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f80098c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:15:19, skipping insertion in model container [2020-09-25 05:15:19,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:15:19" (3/3) ... [2020-09-25 05:15:19,216 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product33.cil.c [2020-09-25 05:15:19,228 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:15:19,242 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:15:19,267 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:15:19,316 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:15:19,316 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:15:19,316 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:15:19,317 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:15:19,317 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:15:19,317 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:15:19,317 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:15:19,318 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:15:19,361 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states. [2020-09-25 05:15:19,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 05:15:19,395 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:15:19,396 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:15:19,396 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:15:19,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:15:19,405 INFO L82 PathProgramCache]: Analyzing trace with hash 843539400, now seen corresponding path program 1 times [2020-09-25 05:15:19,416 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:15:19,417 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [123462972] [2020-09-25 05:15:19,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:15:19,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:19,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:20,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:20,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:24,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:24,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 05:15:24,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:15:24,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4484 [2020-09-25 05:15:24,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:24,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:24,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:24,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 05:15:24,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:24,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 05:15:24,780 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:15:24,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:15:24,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:24,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:24,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:24,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:15:24,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:24,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-09-25 05:15:24,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:24,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:24,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:24,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:24,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:24,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:15:25,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:15:25,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:25,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:25,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:25,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:15:25,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:25,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:15:25,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:25,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:25,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:25,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:25,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:25,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:25,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:15:25,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:25,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:25,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:25,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:15:25,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:25,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:15:25,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:25,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:25,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:25,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:25,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:25,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:25,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:15:25,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:25,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:25,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:25,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:15:25,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:25,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 05:15:25,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:25,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:25,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:25,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:25,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:25,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:25,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:15:25,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:25,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:25,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:25,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:15:25,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:25,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:15:25,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:25,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:25,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:25,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:25,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:25,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:25,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 05:15:25,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:25,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:25,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:25,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:15:25,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:25,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:15:25,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:25,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:25,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:25,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:15:25,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:25,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:25,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 05:15:25,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:25,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:25,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:25,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:15:25,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:25,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:15:25,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:25,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:25,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:25,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:15:25,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:25,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:25,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 05:15:25,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:25,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:25,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:25,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:15:25,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:25,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:15:25,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:25,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:25,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:25,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:15:25,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:25,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:25,214 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 05:15:25,215 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [123462972] [2020-09-25 05:15:25,218 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:15:25,218 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 05:15:25,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596444421] [2020-09-25 05:15:25,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 05:15:25,230 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:15:25,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 05:15:25,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:15:25,253 INFO L87 Difference]: Start difference. First operand 295 states. Second operand 3 states. [2020-09-25 05:15:26,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:15:26,590 INFO L93 Difference]: Finished difference Result 441 states and 525 transitions. [2020-09-25 05:15:26,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 05:15:26,593 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 05:15:26,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:15:26,613 INFO L225 Difference]: With dead ends: 441 [2020-09-25 05:15:26,613 INFO L226 Difference]: Without dead ends: 277 [2020-09-25 05:15:26,619 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:15:26,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-09-25 05:15:26,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 238. [2020-09-25 05:15:26,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-09-25 05:15:26,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 257 transitions. [2020-09-25 05:15:26,723 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 257 transitions. Word has length 153 [2020-09-25 05:15:26,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:15:26,724 INFO L479 AbstractCegarLoop]: Abstraction has 238 states and 257 transitions. [2020-09-25 05:15:26,725 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 05:15:26,725 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 257 transitions. [2020-09-25 05:15:26,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 05:15:26,729 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:15:26,729 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:15:26,730 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:15:26,730 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:15:26,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:15:26,730 INFO L82 PathProgramCache]: Analyzing trace with hash -457138142, now seen corresponding path program 1 times [2020-09-25 05:15:26,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:15:26,731 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1435250683] [2020-09-25 05:15:26,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:15:26,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:26,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:26,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:27,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:31,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:31,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 05:15:31,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:15:31,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 05:15:31,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:31,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:31,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:15:31,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 05:15:31,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-25 05:15:31,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:32,132 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:15:32,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:15:32,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:32,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:32,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:32,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:15:32,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:32,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 272 [2020-09-25 05:15:32,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:32,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:32,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:15:32,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:32,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 05:15:32,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:32,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:15:32,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:32,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:32,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:32,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:15:32,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:32,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:15:32,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:32,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:32,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:15:32,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:32,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:15:32,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:32,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:15:32,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:32,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:32,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:32,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:15:32,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:32,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:15:32,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:32,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:32,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:15:32,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:32,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:15:32,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:32,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:15:32,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:32,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:32,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:32,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:15:32,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:32,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 05:15:32,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:32,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:32,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:15:32,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:32,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:15:32,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:32,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:15:32,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:32,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:32,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:32,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:15:32,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:32,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:15:32,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:32,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:32,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:15:32,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:32,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:15:32,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:32,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 05:15:32,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:32,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:32,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:32,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:15:32,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:32,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:15:32,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:32,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:32,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:32,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:15:32,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:32,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:32,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 05:15:32,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:32,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:32,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:32,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:15:32,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:32,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:15:32,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:32,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:32,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:32,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:15:32,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:32,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:32,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 05:15:32,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:32,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:32,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:32,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:15:32,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:32,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:15:32,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:32,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:32,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:32,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:15:32,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:32,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:32,595 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 05:15:32,595 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1435250683] [2020-09-25 05:15:32,596 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:15:32,596 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:15:32,596 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492417477] [2020-09-25 05:15:32,599 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:15:32,600 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:15:32,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:15:32,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:15:32,600 INFO L87 Difference]: Start difference. First operand 238 states and 257 transitions. Second operand 4 states. [2020-09-25 05:15:33,110 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 05:15:33,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:15:33,967 INFO L93 Difference]: Finished difference Result 405 states and 466 transitions. [2020-09-25 05:15:33,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 05:15:33,974 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 05:15:33,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:15:33,980 INFO L225 Difference]: With dead ends: 405 [2020-09-25 05:15:33,980 INFO L226 Difference]: Without dead ends: 277 [2020-09-25 05:15:33,984 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:15:33,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-09-25 05:15:34,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 238. [2020-09-25 05:15:34,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-09-25 05:15:34,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 256 transitions. [2020-09-25 05:15:34,037 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 256 transitions. Word has length 154 [2020-09-25 05:15:34,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:15:34,038 INFO L479 AbstractCegarLoop]: Abstraction has 238 states and 256 transitions. [2020-09-25 05:15:34,038 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:15:34,038 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 256 transitions. [2020-09-25 05:15:34,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 05:15:34,040 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:15:34,040 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:15:34,041 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:15:34,041 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:15:34,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:15:34,041 INFO L82 PathProgramCache]: Analyzing trace with hash 1833891161, now seen corresponding path program 1 times [2020-09-25 05:15:34,041 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:15:34,042 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2127652267] [2020-09-25 05:15:34,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:15:34,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:34,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:34,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:34,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:37,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:38,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:39,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:39,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 05:15:39,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:15:39,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-09-25 05:15:39,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:39,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:39,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:15:39,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 05:15:39,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 05:15:39,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:39,559 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:15:39,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:15:39,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:39,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:39,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:39,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:15:39,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:39,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-25 05:15:39,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:39,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:39,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:39,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:39,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:39,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:39,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:15:39,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:39,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:39,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:39,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:15:39,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:39,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:15:39,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:39,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:39,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:39,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:39,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:39,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:39,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:15:39,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:39,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:39,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:39,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:15:39,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:39,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:15:39,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:39,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:39,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:39,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:39,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:39,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:39,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:15:39,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:39,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:39,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:39,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:15:39,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:39,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:15:39,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:39,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:39,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:39,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:39,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:39,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 05:15:39,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:15:39,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:39,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:39,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:39,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:15:39,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:39,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:15:39,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:39,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:39,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:39,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:39,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:39,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:39,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 05:15:39,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:39,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:39,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:39,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 05:15:39,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:39,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:15:39,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:39,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:39,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:39,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 05:15:39,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:39,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:39,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:15:39,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:39,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:39,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:39,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:15:39,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:39,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:15:39,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:39,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:39,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:39,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:39,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:39,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:39,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 05:15:39,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:39,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:39,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:39,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:15:39,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:39,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:15:39,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:39,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:39,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:39,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:15:39,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:39,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:39,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 05:15:39,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:39,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:39,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:39,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:15:39,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:39,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:15:39,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:39,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:39,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:39,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:15:39,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:39,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:39,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 05:15:39,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:39,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:39,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:39,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:15:39,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:39,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:15:39,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:39,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:39,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:39,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:15:39,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:39,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:39,861 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 05:15:39,862 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2127652267] [2020-09-25 05:15:39,863 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:15:39,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 05:15:39,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648258536] [2020-09-25 05:15:39,865 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 05:15:39,865 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:15:39,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 05:15:39,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:15:39,868 INFO L87 Difference]: Start difference. First operand 238 states and 256 transitions. Second operand 5 states. [2020-09-25 05:15:40,556 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:15:41,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:15:41,576 INFO L93 Difference]: Finished difference Result 382 states and 434 transitions. [2020-09-25 05:15:41,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 05:15:41,577 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 162 [2020-09-25 05:15:41,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:15:41,580 INFO L225 Difference]: With dead ends: 382 [2020-09-25 05:15:41,581 INFO L226 Difference]: Without dead ends: 284 [2020-09-25 05:15:41,582 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:15:41,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2020-09-25 05:15:41,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 228. [2020-09-25 05:15:41,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-09-25 05:15:41,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 243 transitions. [2020-09-25 05:15:41,671 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 243 transitions. Word has length 162 [2020-09-25 05:15:41,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:15:41,671 INFO L479 AbstractCegarLoop]: Abstraction has 228 states and 243 transitions. [2020-09-25 05:15:41,671 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 05:15:41,672 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 243 transitions. [2020-09-25 05:15:41,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-25 05:15:41,674 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:15:41,674 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:15:41,674 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:15:41,674 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:15:41,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:15:41,675 INFO L82 PathProgramCache]: Analyzing trace with hash -368692979, now seen corresponding path program 1 times [2020-09-25 05:15:41,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:15:41,675 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1609062158] [2020-09-25 05:15:41,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:15:41,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:41,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:41,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:43,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:44,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:46,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:46,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-25 05:15:46,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:15:46,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-09-25 05:15:46,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:46,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:46,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:15:46,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 05:15:46,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:15:46,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:47,059 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:15:47,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:15:47,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:47,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:47,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:47,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:15:47,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:47,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-09-25 05:15:47,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:47,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:47,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:47,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:47,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:47,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:47,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:15:47,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:47,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:47,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:47,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:15:47,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:47,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:15:47,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:47,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:47,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:47,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:47,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:47,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:47,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:15:47,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:47,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:47,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:47,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:15:47,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:47,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:15:47,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:47,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:47,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:47,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:47,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:47,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:47,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:15:47,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:47,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:47,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:47,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:15:47,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:47,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:15:47,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:47,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:47,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:47,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:47,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:47,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:47,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:15:47,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:47,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:47,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:47,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:15:47,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:47,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:15:47,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:47,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:47,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:47,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:47,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:47,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:47,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 05:15:47,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:47,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:47,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:47,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 05:15:47,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:47,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 05:15:47,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:47,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:47,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:15:47,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 05:15:47,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 05:15:47,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:47,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:15:47,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:47,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:47,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:47,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:15:47,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:47,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:15:47,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:47,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:47,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:15:47,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:47,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:15:47,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:47,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 05:15:47,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:47,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:47,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:47,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:15:47,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:47,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:15:47,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:47,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:47,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:47,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:15:47,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:47,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:47,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 05:15:47,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:47,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:47,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:47,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:15:47,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:47,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:15:47,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:47,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:47,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:47,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:15:47,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:47,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:47,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-25 05:15:47,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:47,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:47,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:47,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:15:47,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:47,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:15:47,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:47,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:47,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:47,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:15:47,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:47,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:47,487 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 05:15:47,487 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1609062158] [2020-09-25 05:15:47,488 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:15:47,488 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 05:15:47,488 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760841668] [2020-09-25 05:15:47,489 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 05:15:47,490 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:15:47,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 05:15:47,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:15:47,491 INFO L87 Difference]: Start difference. First operand 228 states and 243 transitions. Second operand 7 states. [2020-09-25 05:15:48,260 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:15:49,900 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:15:50,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:15:50,496 INFO L93 Difference]: Finished difference Result 522 states and 592 transitions. [2020-09-25 05:15:50,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 05:15:50,497 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 171 [2020-09-25 05:15:50,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:15:50,507 INFO L225 Difference]: With dead ends: 522 [2020-09-25 05:15:50,507 INFO L226 Difference]: Without dead ends: 404 [2020-09-25 05:15:50,508 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-09-25 05:15:50,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2020-09-25 05:15:50,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 345. [2020-09-25 05:15:50,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2020-09-25 05:15:50,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 372 transitions. [2020-09-25 05:15:50,577 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 372 transitions. Word has length 171 [2020-09-25 05:15:50,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:15:50,577 INFO L479 AbstractCegarLoop]: Abstraction has 345 states and 372 transitions. [2020-09-25 05:15:50,577 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 05:15:50,578 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 372 transitions. [2020-09-25 05:15:50,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-25 05:15:50,580 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:15:50,581 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:15:50,581 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 05:15:50,581 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:15:50,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:15:50,581 INFO L82 PathProgramCache]: Analyzing trace with hash 579054747, now seen corresponding path program 1 times [2020-09-25 05:15:50,582 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:15:50,582 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [60907961] [2020-09-25 05:15:50,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:15:50,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:50,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:50,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:52,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:52,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-09-25 05:15:52,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:15:52,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2217 [2020-09-25 05:15:52,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:52,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:52,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:15:52,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-09-25 05:15:52,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-25 05:15:52,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:53,151 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:15:53,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:15:53,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:53,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:53,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:53,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:15:53,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:53,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-25 05:15:53,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:53,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:53,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:53,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:53,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:53,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:15:53,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:15:53,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:53,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:53,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:53,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:15:53,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:53,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:15:53,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:53,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:53,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:53,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:53,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:53,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:15:53,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:15:53,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:53,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:53,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:53,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:15:53,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:53,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:15:53,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:53,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:53,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:53,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:53,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:53,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:15:53,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:15:53,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:53,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:53,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:53,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:15:53,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:53,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:15:53,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:53,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:53,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:53,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:53,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:53,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:15:53,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:15:53,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:53,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:53,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:53,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:15:53,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:53,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:15:53,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:53,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:53,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:53,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:53,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:53,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:53,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 05:15:53,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:53,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:53,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:53,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 05:15:53,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:53,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 05:15:53,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:53,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:53,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:15:53,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:53,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 05:15:53,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:53,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:15:53,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:53,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:53,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:53,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 05:15:53,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:53,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 05:15:53,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:53,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:53,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:15:53,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:53,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 05:15:53,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:53,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:15:53,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:53,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:53,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:53,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 05:15:53,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:53,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:15:53,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:53,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:53,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:15:53,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:53,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 05:15:53,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:53,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 05:15:53,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:53,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:53,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:53,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:15:53,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:53,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:15:53,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:53,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:53,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:15:53,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:53,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:15:53,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:53,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-25 05:15:53,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:53,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:53,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:53,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:15:53,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:53,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:15:53,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:53,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:53,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:15:53,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:53,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:15:53,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:53,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-25 05:15:53,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:53,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:53,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:53,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:15:53,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:53,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:15:53,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:53,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:53,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:15:53,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:53,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:15:53,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:15:53,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-25 05:15:53,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:53,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:53,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:53,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:15:53,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:53,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:15:53,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:53,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:53,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:53,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:15:53,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:53,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:53,564 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 05:15:53,564 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [60907961] [2020-09-25 05:15:53,565 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:15:53,565 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 05:15:53,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612480320] [2020-09-25 05:15:53,566 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 05:15:53,566 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:15:53,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 05:15:53,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 05:15:53,567 INFO L87 Difference]: Start difference. First operand 345 states and 372 transitions. Second operand 10 states. [2020-09-25 05:15:54,146 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 05:15:55,929 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 05:15:56,268 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:15:56,623 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:15:56,966 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 05:15:57,255 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 05:15:57,568 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 05:15:57,860 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:15:58,267 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 05:15:59,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:15:59,192 INFO L93 Difference]: Finished difference Result 858 states and 1007 transitions. [2020-09-25 05:15:59,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 05:15:59,194 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 195 [2020-09-25 05:15:59,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:15:59,206 INFO L225 Difference]: With dead ends: 858 [2020-09-25 05:15:59,206 INFO L226 Difference]: Without dead ends: 623 [2020-09-25 05:15:59,208 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-25 05:15:59,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2020-09-25 05:15:59,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 548. [2020-09-25 05:15:59,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 548 states. [2020-09-25 05:15:59,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 608 transitions. [2020-09-25 05:15:59,321 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 608 transitions. Word has length 195 [2020-09-25 05:15:59,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:15:59,322 INFO L479 AbstractCegarLoop]: Abstraction has 548 states and 608 transitions. [2020-09-25 05:15:59,322 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 05:15:59,322 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 608 transitions. [2020-09-25 05:15:59,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-25 05:15:59,326 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:15:59,326 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:15:59,326 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 05:15:59,326 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:15:59,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:15:59,327 INFO L82 PathProgramCache]: Analyzing trace with hash 720775112, now seen corresponding path program 1 times [2020-09-25 05:15:59,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:15:59,327 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1829634234] [2020-09-25 05:15:59,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:15:59,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:59,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:00,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:00,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 241 [2020-09-25 05:16:00,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:00,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 675 [2020-09-25 05:16:00,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:00,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:00,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:16:00,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-09-25 05:16:00,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:16:00,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:00,321 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:16:00,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:16:00,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:00,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:00,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:00,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:16:00,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:00,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-25 05:16:00,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:00,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:00,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:00,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:00,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:00,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:00,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:16:00,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:00,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:00,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:00,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:16:00,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:00,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:16:00,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:00,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:00,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:00,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:00,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:00,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:00,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:16:00,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:00,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:00,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:00,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:16:00,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:00,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:16:00,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:00,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:00,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:00,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:00,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:00,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:00,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:16:00,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:00,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:00,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:00,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:00,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:00,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:16:00,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:00,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:00,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:00,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:00,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:00,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:00,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:16:00,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:00,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:00,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:00,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:16:00,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:00,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:16:00,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:00,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:00,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:00,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:00,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:00,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:16:00,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 05:16:00,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:00,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:00,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:00,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:16:00,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:00,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:16:00,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:00,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:00,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:00,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:00,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:00,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:00,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 05:16:00,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:00,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:00,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:00,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 05:16:00,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:00,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-25 05:16:00,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:00,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:00,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:16:00,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 05:16:00,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:16:00,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:00,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:16:00,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:00,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:00,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:00,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 05:16:00,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:00,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 05:16:00,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:00,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:00,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:16:00,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 05:16:00,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:16:00,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:00,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 05:16:00,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:00,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:00,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:00,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 05:16:00,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:00,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 05:16:00,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:00,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:00,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:16:00,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:16:00,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:16:00,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:00,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 05:16:00,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:00,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:00,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:00,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:16:00,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:00,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:16:00,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:00,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:00,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:00,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 05:16:00,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:00,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:00,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-25 05:16:00,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:00,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:00,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:00,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:00,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:00,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:16:00,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:00,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:00,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:00,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:16:00,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:00,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:00,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-25 05:16:00,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:00,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:00,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:00,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:00,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:00,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:16:00,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:00,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:00,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:00,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:16:00,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:00,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:00,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-25 05:16:00,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:16:00,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:16:00,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:16:00,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:16:00,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:16:00,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:16:00,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:16:00,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:16:00,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:16:00,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:16:00,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:16:00,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:16:00,807 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 05:16:00,807 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1829634234] [2020-09-25 05:16:00,808 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:16:00,808 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 05:16:00,809 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810670997] [2020-09-25 05:16:00,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 05:16:00,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:16:00,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 05:16:00,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 05:16:00,811 INFO L87 Difference]: Start difference. First operand 548 states and 608 transitions. Second operand 9 states. [2020-09-25 05:16:02,079 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 187