/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=SMALLEST --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_spec2_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 17:58:24,622 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 17:58:24,627 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 17:58:24,679 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 17:58:24,681 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 17:58:24,692 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 17:58:24,695 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 17:58:24,699 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 17:58:24,702 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 17:58:24,706 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 17:58:24,707 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 17:58:24,708 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 17:58:24,708 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 17:58:24,713 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 17:58:24,716 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 17:58:24,717 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 17:58:24,719 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 17:58:24,720 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 17:58:24,722 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 17:58:24,732 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 17:58:24,734 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 17:58:24,735 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 17:58:24,736 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 17:58:24,737 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 17:58:24,739 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 17:58:24,740 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 17:58:24,740 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 17:58:24,741 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 17:58:24,741 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 17:58:24,742 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 17:58:24,743 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 17:58:24,743 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 17:58:24,744 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 17:58:24,745 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 17:58:24,746 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 17:58:24,746 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 17:58:24,747 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 17:58:24,748 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 17:58:24,748 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 17:58:24,749 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 17:58:24,750 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 17:58:24,750 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 [2020-09-24 17:58:24,776 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 17:58:24,777 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 17:58:24,778 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 17:58:24,778 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 17:58:24,779 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 17:58:24,779 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 17:58:24,779 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 17:58:24,779 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 17:58:24,780 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 17:58:24,780 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 17:58:24,780 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 17:58:24,780 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 17:58:24,780 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 17:58:24,781 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 17:58:24,781 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 17:58:24,781 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 17:58:24,781 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 17:58:24,781 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 17:58:24,782 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 17:58:24,782 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 17:58:24,782 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 17:58:24,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:58:24,783 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 17:58:24,783 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 17:58:24,783 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 17:58:24,783 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 17:58:24,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 17:58:24,784 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 17:58:24,784 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 17:58:24,784 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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;log-additional-information=true; [2020-09-24 17:58:25,275 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 17:58:25,302 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 17:58:25,307 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 17:58:25,310 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 17:58:25,310 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 17:58:25,311 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product33.cil.c [2020-09-24 17:58:25,410 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ee54530a6/401fa0b176034657aee5dbcdc096cbf7/FLAGe4bbcbb56 [2020-09-24 17:58:26,041 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 17:58:26,042 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product33.cil.c [2020-09-24 17:58:26,055 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ee54530a6/401fa0b176034657aee5dbcdc096cbf7/FLAGe4bbcbb56 [2020-09-24 17:58:26,352 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ee54530a6/401fa0b176034657aee5dbcdc096cbf7 [2020-09-24 17:58:26,369 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 17:58:26,375 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 17:58:26,376 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 17:58:26,376 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 17:58:26,381 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 17:58:26,382 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:58:26" (1/1) ... [2020-09-24 17:58:26,386 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7405883a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:58:26, skipping insertion in model container [2020-09-24 17:58:26,387 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:58:26" (1/1) ... [2020-09-24 17:58:26,396 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 17:58:26,465 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 17:58:26,951 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:58:26,976 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 17:58:27,082 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:58:27,121 INFO L208 MainTranslator]: Completed translation [2020-09-24 17:58:27,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:58:27 WrapperNode [2020-09-24 17:58:27,121 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 17:58:27,122 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 17:58:27,123 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 17:58:27,123 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 17:58:27,138 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:58:27" (1/1) ... [2020-09-24 17:58:27,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:58:27" (1/1) ... [2020-09-24 17:58:27,160 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:58:27" (1/1) ... [2020-09-24 17:58:27,160 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:58:27" (1/1) ... [2020-09-24 17:58:27,194 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:58:27" (1/1) ... [2020-09-24 17:58:27,206 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:58:27" (1/1) ... [2020-09-24 17:58:27,211 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:58:27" (1/1) ... [2020-09-24 17:58:27,219 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 17:58:27,220 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 17:58:27,220 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 17:58:27,220 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 17:58:27,221 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:58:27" (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 [2020-09-24 17:58:27,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 17:58:27,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 17:58:27,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 17:58:27,292 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 17:58:27,293 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 17:58:27,293 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 17:58:27,293 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 17:58:27,293 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 17:58:27,293 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 17:58:27,294 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 17:58:27,294 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 17:58:27,294 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 17:58:27,294 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 17:58:27,294 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 17:58:27,295 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 17:58:27,295 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 17:58:27,295 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 17:58:27,295 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 17:58:27,295 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 17:58:27,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 17:58:27,296 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 17:58:27,296 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 17:58:27,296 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 17:58:27,296 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 17:58:27,296 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 17:58:27,296 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 17:58:27,297 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 17:58:27,297 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 17:58:27,297 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 17:58:27,297 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 17:58:27,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 17:58:27,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 17:58:27,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 17:58:27,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 17:58:27,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 17:58:27,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 17:58:27,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 17:58:27,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 17:58:27,299 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 17:58:27,299 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 17:58:27,299 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 17:58:27,299 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 17:58:27,299 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 17:58:27,299 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 17:58:27,300 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 17:58:27,300 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 17:58:27,300 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 17:58:27,300 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 17:58:27,300 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 17:58:27,300 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 17:58:27,301 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 17:58:27,301 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 17:58:27,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 17:58:27,301 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 17:58:27,301 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 17:58:27,301 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 17:58:27,302 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 17:58:27,302 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 17:58:27,302 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 17:58:27,302 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 17:58:27,302 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 17:58:27,303 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 17:58:27,303 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 17:58:27,303 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 17:58:27,303 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 17:58:27,303 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 17:58:27,303 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 17:58:27,304 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 17:58:27,304 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 17:58:27,304 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 17:58:27,304 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 17:58:27,304 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 17:58:27,304 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 17:58:27,305 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 17:58:27,305 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 17:58:27,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 17:58:27,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 17:58:27,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 17:58:27,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 17:58:27,305 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 17:58:27,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 17:58:27,306 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 17:58:27,306 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 17:58:27,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 17:58:27,306 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 17:58:27,306 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 17:58:27,307 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 17:58:27,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 17:58:27,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 17:58:27,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 17:58:28,497 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 17:58:28,497 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 17:58:28,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:58:28 BoogieIcfgContainer [2020-09-24 17:58:28,505 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 17:58:28,506 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 17:58:28,506 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 17:58:28,510 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 17:58:28,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:58:26" (1/3) ... [2020-09-24 17:58:28,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f1b8d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:58:28, skipping insertion in model container [2020-09-24 17:58:28,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:58:27" (2/3) ... [2020-09-24 17:58:28,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f1b8d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:58:28, skipping insertion in model container [2020-09-24 17:58:28,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:58:28" (3/3) ... [2020-09-24 17:58:28,515 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product33.cil.c [2020-09-24 17:58:28,528 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 17:58:28,540 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 17:58:28,564 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 17:58:28,599 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 17:58:28,600 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 17:58:28,600 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 17:58:28,600 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 17:58:28,600 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 17:58:28,600 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 17:58:28,600 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 17:58:28,601 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 17:58:28,627 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2020-09-24 17:58:28,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 17:58:28,646 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:58:28,647 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] [2020-09-24 17:58:28,648 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:58:28,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:58:28,656 INFO L82 PathProgramCache]: Analyzing trace with hash -636857616, now seen corresponding path program 1 times [2020-09-24 17:58:28,668 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:58:28,668 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [147039259] [2020-09-24 17:58:28,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:58:28,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:29,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:29,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:30,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:31,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:31,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:34,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:34,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 17:58:34,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 17:58:34,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5071 [2020-09-24 17:58:34,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:34,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:34,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-24 17:58:34,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:34,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 17:58:34,568 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:58:34,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:58:34,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:34,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:34,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:34,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 17:58:34,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:34,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-09-24 17:58:34,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:34,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:34,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:34,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:34,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:34,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 17:58:34,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:34,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:34,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:34,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:58:34,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:34,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 17:58:34,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:34,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:34,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:34,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:34,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:58:34,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 17:58:34,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:34,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:34,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:34,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:58:34,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:34,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:58:34,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:34,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:34,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:34,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:34,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:58:34,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 17:58:34,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:34,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:34,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:34,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:58:34,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:34,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 17:58:34,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:34,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:34,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:34,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:34,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:58:34,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 17:58:34,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:34,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:34,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:34,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:58:34,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:34,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:58:34,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:34,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:34,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:34,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:34,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:58:34,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 17:58:34,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:34,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:34,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:34,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:58:34,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:34,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:58:34,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:34,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:34,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:34,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:34,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:58:34,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 17:58:34,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:34,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:34,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:34,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:58:34,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:34,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:58:34,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:34,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:34,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:58:34,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:34,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:34,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 17:58:34,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:34,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:34,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:34,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:58:34,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:34,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:58:34,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:34,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:34,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:58:34,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:34,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:58:34,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:58:34,971 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [147039259] [2020-09-24 17:58:34,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:58:34,975 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 17:58:34,977 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446978115] [2020-09-24 17:58:34,991 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 17:58:34,992 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:58:35,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 17:58:35,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 17:58:35,022 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 4 states. [2020-09-24 17:58:36,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:58:36,329 INFO L93 Difference]: Finished difference Result 432 states and 512 transitions. [2020-09-24 17:58:36,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 17:58:36,332 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-24 17:58:36,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:58:36,352 INFO L225 Difference]: With dead ends: 432 [2020-09-24 17:58:36,352 INFO L226 Difference]: Without dead ends: 281 [2020-09-24 17:58:36,358 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 17:58:36,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2020-09-24 17:58:36,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 236. [2020-09-24 17:58:36,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-09-24 17:58:36,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 255 transitions. [2020-09-24 17:58:36,469 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 255 transitions. Word has length 148 [2020-09-24 17:58:36,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:58:36,474 INFO L479 AbstractCegarLoop]: Abstraction has 236 states and 255 transitions. [2020-09-24 17:58:36,474 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 17:58:36,474 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 255 transitions. [2020-09-24 17:58:36,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-24 17:58:36,481 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:58:36,481 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] [2020-09-24 17:58:36,481 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 17:58:36,481 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:58:36,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:58:36,482 INFO L82 PathProgramCache]: Analyzing trace with hash -394037270, now seen corresponding path program 1 times [2020-09-24 17:58:36,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:58:36,482 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [824575032] [2020-09-24 17:58:36,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:58:36,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:36,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:36,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:37,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:38,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:38,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:40,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:41,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:41,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-24 17:58:41,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 17:58:41,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-24 17:58:41,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:41,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:58:41,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 17:58:41,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-24 17:58:41,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:41,911 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:58:41,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:58:41,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:41,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:42,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:42,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 17:58:42,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:42,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-09-24 17:58:42,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:42,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:58:42,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:42,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 17:58:42,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:42,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 17:58:42,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:42,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:42,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:42,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:58:42,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:42,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:58:42,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:42,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:58:42,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:42,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 17:58:42,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:58:42,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 17:58:42,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:42,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:42,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:42,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:58:42,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:42,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 17:58:42,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:42,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:58:42,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:42,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 17:58:42,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:42,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 17:58:42,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:42,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:42,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:42,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:58:42,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:42,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 17:58:42,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:42,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:58:42,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:42,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 17:58:42,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:58:42,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 17:58:42,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:42,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:42,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:42,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:58:42,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:42,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:58:42,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:42,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:58:42,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:42,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 17:58:42,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:58:42,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 17:58:42,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:42,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:42,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:42,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:58:42,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:42,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:58:42,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:42,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:58:42,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:42,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 17:58:42,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:58:42,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-24 17:58:42,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:42,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:42,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:42,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:58:42,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:42,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:58:42,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:42,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:42,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:58:42,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:42,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:42,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 17:58:42,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:42,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:42,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:42,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:58:42,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:42,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:58:42,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:42,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:42,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:58:42,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:42,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 17:58:42,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:58:42,423 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [824575032] [2020-09-24 17:58:42,424 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:58:42,424 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 17:58:42,424 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053481929] [2020-09-24 17:58:42,428 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 17:58:42,428 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:58:42,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 17:58:42,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 17:58:42,429 INFO L87 Difference]: Start difference. First operand 236 states and 255 transitions. Second operand 5 states. [2020-09-24 17:58:42,981 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:58:43,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:58:43,714 INFO L93 Difference]: Finished difference Result 402 states and 463 transitions. [2020-09-24 17:58:43,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 17:58:43,716 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-24 17:58:43,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:58:43,720 INFO L225 Difference]: With dead ends: 402 [2020-09-24 17:58:43,720 INFO L226 Difference]: Without dead ends: 281 [2020-09-24 17:58:43,722 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 17:58:43,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2020-09-24 17:58:43,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 236. [2020-09-24 17:58:43,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-09-24 17:58:43,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 254 transitions. [2020-09-24 17:58:43,779 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 254 transitions. Word has length 149 [2020-09-24 17:58:43,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:58:43,781 INFO L479 AbstractCegarLoop]: Abstraction has 236 states and 254 transitions. [2020-09-24 17:58:43,781 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 17:58:43,781 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 254 transitions. [2020-09-24 17:58:43,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-09-24 17:58:43,787 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:58:43,787 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] [2020-09-24 17:58:43,787 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 17:58:43,788 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:58:43,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:58:43,788 INFO L82 PathProgramCache]: Analyzing trace with hash -1440775673, now seen corresponding path program 1 times [2020-09-24 17:58:43,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:58:43,789 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1466667345] [2020-09-24 17:58:43,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:58:43,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:43,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:44,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:44,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:47,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:47,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:48,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:48,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-24 17:58:48,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 17:58:48,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-09-24 17:58:48,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:48,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:58:48,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 17:58:48,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 17:58:48,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 17:58:49,300 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:58:49,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:58:49,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:49,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:49,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:49,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 17:58:49,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:49,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-24 17:58:49,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:49,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:49,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:49,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:49,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:58:49,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 17:58:49,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:49,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:49,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:49,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:58:49,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:49,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:58:49,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:49,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:49,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:49,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:49,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:58:49,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 17:58:49,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:49,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:49,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:49,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:58:49,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:49,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:58:49,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:49,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:49,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:49,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:49,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:58:49,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 17:58:49,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:49,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:49,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:49,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:58:49,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:49,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:58:49,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:49,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:49,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:49,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:49,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:49,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 17:58:49,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:49,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:49,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:49,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:58:49,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:49,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:58:49,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:49,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:49,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:49,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:49,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:49,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 17:58:49,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:49,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:49,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:49,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:58:49,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:49,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:58:49,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:49,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:49,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:49,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:49,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 17:58:49,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-24 17:58:49,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:49,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:49,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:49,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 17:58:49,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:49,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:58:49,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:49,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:49,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-24 17:58:49,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:49,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:49,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:58:49,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:49,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:49,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:49,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:58:49,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:49,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:58:49,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:49,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:49,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:49,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:49,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:58:49,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 17:58:49,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:49,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:49,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:49,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:58:49,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:49,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:58:49,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:49,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:49,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:58:49,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:49,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:49,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 17:58:49,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:49,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:49,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:49,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:58:49,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:49,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:58:49,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:49,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:49,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:58:49,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:49,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:49,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:58:49,637 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1466667345] [2020-09-24 17:58:49,638 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:58:49,638 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 17:58:49,638 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521108036] [2020-09-24 17:58:49,639 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 17:58:49,639 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:58:49,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 17:58:49,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 17:58:49,641 INFO L87 Difference]: Start difference. First operand 236 states and 254 transitions. Second operand 6 states. [2020-09-24 17:58:50,270 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 17:58:51,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:58:51,184 INFO L93 Difference]: Finished difference Result 385 states and 441 transitions. [2020-09-24 17:58:51,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 17:58:51,185 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 157 [2020-09-24 17:58:51,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:58:51,188 INFO L225 Difference]: With dead ends: 385 [2020-09-24 17:58:51,188 INFO L226 Difference]: Without dead ends: 294 [2020-09-24 17:58:51,190 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-24 17:58:51,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-09-24 17:58:51,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 226. [2020-09-24 17:58:51,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-09-24 17:58:51,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 241 transitions. [2020-09-24 17:58:51,226 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 241 transitions. Word has length 157 [2020-09-24 17:58:51,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:58:51,227 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 241 transitions. [2020-09-24 17:58:51,227 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 17:58:51,227 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 241 transitions. [2020-09-24 17:58:51,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-24 17:58:51,229 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:58:51,229 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] [2020-09-24 17:58:51,229 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 17:58:51,229 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:58:51,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:58:51,230 INFO L82 PathProgramCache]: Analyzing trace with hash -1932582056, now seen corresponding path program 1 times [2020-09-24 17:58:51,230 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:58:51,230 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1071598881] [2020-09-24 17:58:51,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:58:51,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:51,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:51,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:52,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:53,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:54,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:54,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:56,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:56,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-24 17:58:56,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 17:58:56,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 17:58:56,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:56,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 17:58:56,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-24 17:58:56,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 17:58:56,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:56,579 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:58:56,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:58:56,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:56,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:56,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:56,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 17:58:56,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:56,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-24 17:58:56,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:56,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:56,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:56,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:56,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:56,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 17:58:56,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:56,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:56,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:56,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:58:56,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:56,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:58:56,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:56,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:56,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:56,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:56,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:56,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 17:58:56,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:56,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:56,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:56,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:58:56,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:56,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:58:56,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:56,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:56,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:56,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:56,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:58:56,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 17:58:56,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:56,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:56,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:56,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:58:56,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:56,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:58:56,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:56,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:56,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:56,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:56,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:58:56,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 17:58:56,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:56,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:56,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:56,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:58:56,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:56,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:58:56,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:56,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:56,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:56,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:56,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:58:56,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 17:58:56,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:56,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:56,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:56,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:58:56,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:56,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:58:56,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:56,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:56,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:56,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:56,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:58:56,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 17:58:56,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:56,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:56,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:56,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 17:58:56,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:56,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 17:58:56,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:56,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 17:58:56,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 17:58:56,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 17:58:56,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:56,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:58:56,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:56,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:56,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:56,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:58:56,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:56,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:58:56,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:56,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:58:56,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:58:56,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 17:58:56,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:56,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-24 17:58:56,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:56,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:56,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:56,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:58:56,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:56,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:58:56,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:56,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:56,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:58:56,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:56,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:58:56,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-24 17:58:56,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:56,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:58:56,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:58:56,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:58:56,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:58:56,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:58:56,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:58:56,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:58:56,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 17:58:56,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:58:56,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:58:56,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:58:56,890 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1071598881] [2020-09-24 17:58:56,890 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:58:56,890 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 17:58:56,891 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857273769] [2020-09-24 17:58:56,891 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 17:58:56,892 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:58:56,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 17:58:56,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-09-24 17:58:56,893 INFO L87 Difference]: Start difference. First operand 226 states and 241 transitions. Second operand 8 states. [2020-09-24 17:58:57,435 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:58:59,008 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 17:58:59,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:58:59,650 INFO L93 Difference]: Finished difference Result 511 states and 588 transitions. [2020-09-24 17:58:59,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 17:58:59,650 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 166 [2020-09-24 17:58:59,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:58:59,654 INFO L225 Difference]: With dead ends: 511 [2020-09-24 17:58:59,654 INFO L226 Difference]: Without dead ends: 400 [2020-09-24 17:58:59,656 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2020-09-24 17:58:59,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2020-09-24 17:58:59,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 329. [2020-09-24 17:58:59,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 329 states. [2020-09-24 17:58:59,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 356 transitions. [2020-09-24 17:58:59,697 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 356 transitions. Word has length 166 [2020-09-24 17:58:59,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:58:59,698 INFO L479 AbstractCegarLoop]: Abstraction has 329 states and 356 transitions. [2020-09-24 17:58:59,698 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 17:58:59,698 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 356 transitions. [2020-09-24 17:58:59,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-24 17:58:59,700 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:58:59,701 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] [2020-09-24 17:58:59,701 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 17:58:59,701 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:58:59,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:58:59,702 INFO L82 PathProgramCache]: Analyzing trace with hash 171472501, now seen corresponding path program 1 times [2020-09-24 17:58:59,710 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:58:59,710 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1055767552] [2020-09-24 17:58:59,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:58:59,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:58:59,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:00,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:00,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:00,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:03,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:04,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:04,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-24 17:59:04,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 17:59:04,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-24 17:59:04,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:04,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 17:59:04,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 159 [2020-09-24 17:59:04,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-24 17:59:04,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:05,190 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 17:59:05,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:59:05,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:05,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:05,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:05,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 17:59:05,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:05,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-09-24 17:59:05,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:05,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:05,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:05,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:05,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:05,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 17:59:05,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:05,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:05,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:05,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:05,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:05,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:59:05,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:05,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:05,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:05,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:05,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:05,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 17:59:05,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:05,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:05,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:05,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:05,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:05,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:59:05,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:05,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:05,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:05,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:05,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:05,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 17:59:05,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:05,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:05,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:05,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:05,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:05,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 17:59:05,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:05,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:05,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:05,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:05,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:05,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 17:59:05,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:05,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:05,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:05,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:05,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:05,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:59:05,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:05,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:05,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:05,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:05,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:05,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 17:59:05,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:05,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:05,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:05,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 17:59:05,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:05,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:59:05,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:05,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:05,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:05,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:05,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:05,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 17:59:05,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:05,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:05,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:05,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 17:59:05,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:05,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 17:59:05,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:05,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:59:05,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:05,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 17:59:05,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:59:05,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 17:59:05,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:05,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:05,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:05,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 17:59:05,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:05,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 17:59:05,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:05,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:59:05,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:05,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 17:59:05,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:05,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 17:59:05,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:05,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:05,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:05,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 17:59:05,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:05,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 17:59:05,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:05,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:59:05,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:05,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:59:05,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:05,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 17:59:05,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:05,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:05,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:05,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:59:05,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:05,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:59:05,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:05,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:59:05,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:05,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 17:59:05,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:05,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-24 17:59:05,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:05,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:05,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:05,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:05,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:05,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 17:59:05,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:05,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:59:05,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:05,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 17:59:05,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:05,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 17:59:05,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:05,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:05,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 17:59:05,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 17:59:05,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:59:05,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 17:59:05,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 17:59:05,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 17:59:05,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:59:05,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 17:59:05,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:59:05,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:59:05,707 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1055767552] [2020-09-24 17:59:05,707 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:59:05,708 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 17:59:05,708 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903565189] [2020-09-24 17:59:05,709 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 17:59:05,709 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:59:05,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 17:59:05,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 17:59:05,710 INFO L87 Difference]: Start difference. First operand 329 states and 356 transitions. Second operand 10 states. [2020-09-24 17:59:06,330 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:59:07,836 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:59:08,142 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 17:59:08,458 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 17:59:08,758 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 17:59:09,116 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 17:59:09,505 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-24 17:59:09,838 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 17:59:10,160 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 17:59:10,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:59:10,888 INFO L93 Difference]: Finished difference Result 612 states and 698 transitions. [2020-09-24 17:59:10,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 17:59:10,889 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 190 [2020-09-24 17:59:10,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:59:10,893 INFO L225 Difference]: With dead ends: 612 [2020-09-24 17:59:10,894 INFO L226 Difference]: Without dead ends: 398 [2020-09-24 17:59:10,895 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-09-24 17:59:10,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2020-09-24 17:59:10,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 327. [2020-09-24 17:59:10,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 327 states. [2020-09-24 17:59:10,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 352 transitions. [2020-09-24 17:59:10,944 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 352 transitions. Word has length 190 [2020-09-24 17:59:10,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:59:10,945 INFO L479 AbstractCegarLoop]: Abstraction has 327 states and 352 transitions. [2020-09-24 17:59:10,945 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 17:59:10,945 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 352 transitions. [2020-09-24 17:59:10,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-09-24 17:59:10,948 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:59:10,948 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] [2020-09-24 17:59:10,948 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 17:59:10,949 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:59:10,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:59:10,949 INFO L82 PathProgramCache]: Analyzing trace with hash -20181976, now seen corresponding path program 1 times [2020-09-24 17:59:10,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:59:10,950 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [122409604] [2020-09-24 17:59:10,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:59:10,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:59:11,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:11,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:59:12,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking...