/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_spec5_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:08:00,095 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:08:00,100 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:08:00,129 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:08:00,130 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:08:00,131 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:08:00,133 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:08:00,135 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:08:00,136 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:08:00,137 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:08:00,139 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:08:00,140 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:08:00,140 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:08:00,141 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:08:00,143 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:08:00,144 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:08:00,145 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:08:00,146 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:08:00,148 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:08:00,150 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:08:00,152 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:08:00,153 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:08:00,155 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:08:00,156 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:08:00,159 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:08:00,159 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:08:00,159 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:08:00,160 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:08:00,161 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:08:00,162 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:08:00,162 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:08:00,163 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:08:00,164 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:08:00,165 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:08:00,166 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:08:00,166 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:08:00,167 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:08:00,167 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:08:00,168 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:08:00,169 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:08:00,169 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:08:00,170 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 18:08:00,197 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:08:00,198 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:08:00,199 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:08:00,199 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:08:00,200 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:08:00,200 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:08:00,200 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:08:00,200 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:08:00,200 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:08:00,201 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:08:00,201 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:08:00,201 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:08:00,201 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:08:00,201 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:08:00,202 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:08:00,202 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:08:00,202 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:08:00,202 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:08:00,203 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:08:00,203 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:08:00,203 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:08:00,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:08:00,203 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:08:00,204 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:08:00,204 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:08:00,204 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:08:00,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:08:00,204 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:08:00,205 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:08:00,205 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 18:08:00,646 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:08:00,664 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:08:00,668 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:08:00,670 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:08:00,671 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:08:00,672 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product34.cil.c [2020-09-24 18:08:00,765 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/99f4632c2/e201ae16a3cc4578bbe39d59ccd75078/FLAG2c354b68f [2020-09-24 18:08:01,407 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:08:01,408 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product34.cil.c [2020-09-24 18:08:01,425 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/99f4632c2/e201ae16a3cc4578bbe39d59ccd75078/FLAG2c354b68f [2020-09-24 18:08:01,660 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/99f4632c2/e201ae16a3cc4578bbe39d59ccd75078 [2020-09-24 18:08:01,673 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:08:01,680 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:08:01,681 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:08:01,681 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:08:01,685 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:08:01,686 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:08:01" (1/1) ... [2020-09-24 18:08:01,691 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26e5903c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:01, skipping insertion in model container [2020-09-24 18:08:01,691 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:08:01" (1/1) ... [2020-09-24 18:08:01,700 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:08:01,785 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:08:02,158 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:08:02,174 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:08:02,417 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:08:02,467 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:08:02,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:02 WrapperNode [2020-09-24 18:08:02,469 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:08:02,470 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:08:02,470 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:08:02,470 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:08:02,488 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:02" (1/1) ... [2020-09-24 18:08:02,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:02" (1/1) ... [2020-09-24 18:08:02,518 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:02" (1/1) ... [2020-09-24 18:08:02,518 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:02" (1/1) ... [2020-09-24 18:08:02,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:02" (1/1) ... [2020-09-24 18:08:02,558 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:02" (1/1) ... [2020-09-24 18:08:02,564 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:02" (1/1) ... [2020-09-24 18:08:02,571 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:08:02,572 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:08:02,572 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:08:02,572 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:08:02,574 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:02" (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 18:08:02,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:08:02,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:08:02,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 18:08:02,650 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 18:08:02,650 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 18:08:02,650 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 18:08:02,650 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 18:08:02,651 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 18:08:02,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 18:08:02,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 18:08:02,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 18:08:02,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 18:08:02,657 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 18:08:02,657 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 18:08:02,657 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 18:08:02,658 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 18:08:02,658 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 18:08:02,658 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 18:08:02,659 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 18:08:02,659 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 18:08:02,659 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 18:08:02,659 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 18:08:02,659 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 18:08:02,660 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 18:08:02,660 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 18:08:02,661 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 18:08:02,661 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 18:08:02,661 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 18:08:02,661 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 18:08:02,661 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 18:08:02,662 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 18:08:02,662 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 18:08:02,662 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-24 18:08:02,662 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-24 18:08:02,662 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-24 18:08:02,662 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 18:08:02,663 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 18:08:02,663 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 18:08:02,663 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 18:08:02,663 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:08:02,663 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:08:02,664 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:08:02,664 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 18:08:02,664 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 18:08:02,664 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 18:08:02,664 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 18:08:02,664 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 18:08:02,664 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 18:08:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 18:08:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 18:08:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 18:08:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 18:08:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 18:08:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 18:08:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 18:08:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 18:08:02,667 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 18:08:02,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 18:08:02,667 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 18:08:02,667 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 18:08:02,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 18:08:02,667 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 18:08:02,667 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 18:08:02,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 18:08:02,668 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 18:08:02,668 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 18:08:02,668 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 18:08:02,668 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 18:08:02,669 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 18:08:02,669 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 18:08:02,669 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 18:08:02,670 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 18:08:02,671 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 18:08:02,671 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 18:08:02,672 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 18:08:02,672 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 18:08:02,672 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 18:08:02,672 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 18:08:02,672 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 18:08:02,672 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 18:08:02,672 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-24 18:08:02,673 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-24 18:08:02,674 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 18:08:02,674 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 18:08:02,674 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 18:08:02,674 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 18:08:02,674 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-24 18:08:02,674 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 18:08:02,674 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 18:08:02,675 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 18:08:02,675 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:08:02,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:08:02,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 18:08:02,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:08:03,877 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:08:03,878 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 18:08:03,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:08:03 BoogieIcfgContainer [2020-09-24 18:08:03,890 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:08:03,891 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:08:03,892 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:08:03,897 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:08:03,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:08:01" (1/3) ... [2020-09-24 18:08:03,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68b322aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:08:03, skipping insertion in model container [2020-09-24 18:08:03,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:08:02" (2/3) ... [2020-09-24 18:08:03,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68b322aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:08:03, skipping insertion in model container [2020-09-24 18:08:03,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:08:03" (3/3) ... [2020-09-24 18:08:03,902 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product34.cil.c [2020-09-24 18:08:03,915 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:08:03,926 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:08:03,945 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:08:03,975 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:08:03,975 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:08:03,976 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:08:03,976 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:08:03,976 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:08:03,976 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:08:03,976 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:08:03,976 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:08:04,004 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states. [2020-09-24 18:08:04,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 18:08:04,022 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:08:04,023 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:08:04,023 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:08:04,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:08:04,030 INFO L82 PathProgramCache]: Analyzing trace with hash 1009197842, now seen corresponding path program 1 times [2020-09-24 18:08:04,041 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:08:04,041 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [737042769] [2020-09-24 18:08:04,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:08:04,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:04,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:04,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:06,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:06,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:09,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:09,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 18:08:09,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:08:09,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-09-24 18:08:09,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:09,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:09,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-24 18:08:09,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:09,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 18:08:10,033 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:08:10,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:08:10,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:10,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:10,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:10,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:08:10,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:10,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-09-24 18:08:10,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:10,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:10,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:10,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:10,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:10,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:08:10,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:10,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:10,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:10,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:10,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:10,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:08:10,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:10,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:10,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:10,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:10,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:10,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:08:10,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:10,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:10,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:10,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:10,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:10,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:08:10,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:10,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:10,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:10,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:10,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:10,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:08:10,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:10,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:10,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:10,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:10,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:10,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 18:08:10,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:10,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:10,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:10,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:10,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:10,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:08:10,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:10,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:10,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:10,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:10,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:10,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:08:10,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:10,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:10,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:10,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:10,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:10,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:08:10,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:10,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:10,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:10,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:08:10,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:10,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:08:10,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:10,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:10,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:10,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:10,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:10,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 18:08:10,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:10,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:10,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:10,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:08:10,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:10,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:08:10,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:10,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:10,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 18:08:10,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:10,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:10,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:08:10,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:10,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:10,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:10,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:10,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:10,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:08:10,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:10,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:10,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:10,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:10,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:10,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 18:08:10,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:10,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:10,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:10,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:10,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:10,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:08:10,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:10,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:10,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:08:10,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:10,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:10,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 18:08:10,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:10,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:10,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:10,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:10,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:10,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:08:10,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:10,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:10,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:08:10,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:10,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:10,459 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:08:10,460 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [737042769] [2020-09-24 18:08:10,463 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:08:10,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 18:08:10,465 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312675507] [2020-09-24 18:08:10,477 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 18:08:10,478 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:08:10,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 18:08:10,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:08:10,514 INFO L87 Difference]: Start difference. First operand 295 states. Second operand 4 states. [2020-09-24 18:08:11,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:08:11,586 INFO L93 Difference]: Finished difference Result 447 states and 526 transitions. [2020-09-24 18:08:11,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 18:08:11,589 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-24 18:08:11,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:08:11,611 INFO L225 Difference]: With dead ends: 447 [2020-09-24 18:08:11,611 INFO L226 Difference]: Without dead ends: 288 [2020-09-24 18:08:11,618 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:08:11,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2020-09-24 18:08:11,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 244. [2020-09-24 18:08:11,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-09-24 18:08:11,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 264 transitions. [2020-09-24 18:08:11,766 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 264 transitions. Word has length 160 [2020-09-24 18:08:11,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:08:11,769 INFO L479 AbstractCegarLoop]: Abstraction has 244 states and 264 transitions. [2020-09-24 18:08:11,769 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 18:08:11,769 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 264 transitions. [2020-09-24 18:08:11,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 18:08:11,780 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:08:11,781 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:08:11,781 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:08:11,782 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:08:11,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:08:11,782 INFO L82 PathProgramCache]: Analyzing trace with hash 190378574, now seen corresponding path program 1 times [2020-09-24 18:08:11,782 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:08:11,783 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1859123936] [2020-09-24 18:08:11,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:08:11,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:11,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:12,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:13,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:14,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:15,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:16,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:16,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-24 18:08:16,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:08:16,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-24 18:08:16,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:16,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:08:16,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 18:08:16,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 18:08:16,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:17,199 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:08:17,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:08:17,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:17,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:17,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:17,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:08:17,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:17,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-24 18:08:17,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:17,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:17,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:17,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:17,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:17,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:08:17,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:17,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:17,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:17,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:17,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:17,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:17,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:17,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:17,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:17,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:17,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:17,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:08:17,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:17,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:17,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:17,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:17,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:17,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:08:17,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:17,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:17,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:17,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:17,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:17,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:08:17,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:17,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:17,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:17,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:17,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:17,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:08:17,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:17,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:17,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:17,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:17,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:17,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:08:17,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:17,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:17,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:17,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:17,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:17,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:08:17,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:17,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:17,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:17,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:17,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:17,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:08:17,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:17,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:17,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:17,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:08:17,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:17,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:17,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:17,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:17,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:17,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:17,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:17,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 18:08:17,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:17,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:17,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:17,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:08:17,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:17,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:08:17,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:17,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:17,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 18:08:17,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:17,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:17,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:08:17,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:17,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:17,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:17,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:17,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:17,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:17,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:17,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:17,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:17,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:17,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:17,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-24 18:08:17,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:17,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:17,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:17,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:17,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:17,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:17,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:17,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:17,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:08:17,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:17,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:17,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 18:08:17,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:17,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:17,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:17,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:17,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:17,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:17,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:17,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:17,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:08:17,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:17,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:17,468 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:08:17,469 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1859123936] [2020-09-24 18:08:17,469 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:08:17,469 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 18:08:17,470 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150415595] [2020-09-24 18:08:17,472 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 18:08:17,472 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:08:17,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 18:08:17,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:08:17,473 INFO L87 Difference]: Start difference. First operand 244 states and 264 transitions. Second operand 5 states. [2020-09-24 18:08:18,144 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:08:18,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:08:18,936 INFO L93 Difference]: Finished difference Result 372 states and 418 transitions. [2020-09-24 18:08:18,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 18:08:18,942 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-24 18:08:18,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:08:18,947 INFO L225 Difference]: With dead ends: 372 [2020-09-24 18:08:18,947 INFO L226 Difference]: Without dead ends: 277 [2020-09-24 18:08:18,951 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:08:18,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-09-24 18:08:19,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 234. [2020-09-24 18:08:19,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-09-24 18:08:19,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 251 transitions. [2020-09-24 18:08:19,027 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 251 transitions. Word has length 161 [2020-09-24 18:08:19,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:08:19,030 INFO L479 AbstractCegarLoop]: Abstraction has 234 states and 251 transitions. [2020-09-24 18:08:19,030 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 18:08:19,030 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 251 transitions. [2020-09-24 18:08:19,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-24 18:08:19,033 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:08:19,033 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:08:19,034 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:08:19,034 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:08:19,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:08:19,034 INFO L82 PathProgramCache]: Analyzing trace with hash -1441293719, now seen corresponding path program 1 times [2020-09-24 18:08:19,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:08:19,035 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [388067786] [2020-09-24 18:08:19,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:08:19,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:19,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:19,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:19,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:21,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:24,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:24,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-24 18:08:24,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:08:24,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-09-24 18:08:24,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:24,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:08:24,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-24 18:08:24,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 18:08:24,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:24,405 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:08:24,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:08:24,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:24,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:24,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:24,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:08:24,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:24,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-24 18:08:24,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:24,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:24,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:24,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:24,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:24,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:08:24,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:24,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:24,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:24,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:24,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:24,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:24,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:24,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:24,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:24,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:24,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 18:08:24,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:08:24,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:24,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:24,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:24,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:24,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:24,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:08:24,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:24,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:24,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:24,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:24,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:24,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:08:24,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:24,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:24,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:24,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:24,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:24,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:08:24,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:24,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:24,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:24,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:24,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:24,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:08:24,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:24,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:24,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:24,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:24,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:24,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:08:24,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:24,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:24,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:24,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:24,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:24,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:08:24,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:24,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:24,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:24,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:08:24,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:24,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:24,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:24,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:24,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:24,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:24,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:24,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 18:08:24,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:24,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:24,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:24,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:08:24,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:24,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:08:24,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:24,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:08:24,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:24,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 18:08:24,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:24,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 18:08:24,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:24,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:24,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:24,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:08:24,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:24,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 18:08:24,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:24,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:08:24,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:24,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 18:08:24,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:24,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:08:24,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:24,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:24,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:24,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:24,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:24,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:24,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:24,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:24,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:24,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:24,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:24,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-24 18:08:24,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:24,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:24,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:24,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:24,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:24,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:24,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:24,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:24,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:08:24,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:24,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:24,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-09-24 18:08:24,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:24,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:24,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:24,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:24,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:24,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:24,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:24,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:24,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:08:24,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:24,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:24,681 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:08:24,682 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [388067786] [2020-09-24 18:08:24,682 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:08:24,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 18:08:24,683 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280802020] [2020-09-24 18:08:24,686 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 18:08:24,687 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:08:24,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 18:08:24,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:08:24,691 INFO L87 Difference]: Start difference. First operand 234 states and 251 transitions. Second operand 6 states. [2020-09-24 18:08:25,443 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 18:08:26,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:08:26,424 INFO L93 Difference]: Finished difference Result 419 states and 483 transitions. [2020-09-24 18:08:26,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 18:08:26,425 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 174 [2020-09-24 18:08:26,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:08:26,436 INFO L225 Difference]: With dead ends: 419 [2020-09-24 18:08:26,436 INFO L226 Difference]: Without dead ends: 300 [2020-09-24 18:08:26,442 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 18:08:26,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2020-09-24 18:08:26,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 234. [2020-09-24 18:08:26,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-09-24 18:08:26,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 250 transitions. [2020-09-24 18:08:26,527 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 250 transitions. Word has length 174 [2020-09-24 18:08:26,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:08:26,530 INFO L479 AbstractCegarLoop]: Abstraction has 234 states and 250 transitions. [2020-09-24 18:08:26,530 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 18:08:26,530 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 250 transitions. [2020-09-24 18:08:26,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-09-24 18:08:26,534 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:08:26,535 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:08:26,535 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:08:26,536 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:08:26,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:08:26,536 INFO L82 PathProgramCache]: Analyzing trace with hash -2081588078, now seen corresponding path program 1 times [2020-09-24 18:08:26,537 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:08:26,538 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1898784027] [2020-09-24 18:08:26,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:08:26,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:26,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:26,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:27,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:28,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:29,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:30,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:31,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:31,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 223 [2020-09-24 18:08:31,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 18:08:31,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-09-24 18:08:31,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:31,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:08:31,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 175 [2020-09-24 18:08:31,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:08:31,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:31,987 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:08:31,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:08:31,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:32,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:32,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:32,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:08:32,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:32,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-24 18:08:32,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:32,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:32,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:32,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:32,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:32,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:08:32,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:32,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:32,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:32,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:32,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:32,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:32,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:32,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:32,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:32,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:32,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:32,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:08:32,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:32,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:32,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:32,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:32,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:32,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:32,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:32,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:32,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:32,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:32,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:32,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:08:32,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:32,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:32,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:32,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:32,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:32,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:32,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:32,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:32,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:32,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:32,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:32,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:08:32,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:32,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:32,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:32,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:32,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:32,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:32,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:32,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:32,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:32,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:32,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:32,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:08:32,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:32,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:32,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:32,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:08:32,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:32,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:32,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:32,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:32,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:32,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:32,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:32,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 18:08:32,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:32,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:32,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:32,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:08:32,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:32,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:08:32,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:32,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:32,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:32,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:32,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:32,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 18:08:32,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:32,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:32,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:32,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:08:32,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:32,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:32,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:32,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:32,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:32,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:32,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:32,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:08:32,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:32,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:32,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:32,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:32,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:32,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:32,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:32,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:32,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:32,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:32,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:32,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 18:08:32,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:32,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:32,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:32,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 18:08:32,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:32,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 18:08:32,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:32,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:08:32,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 18:08:32,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 18:08:32,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:32,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:08:32,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:32,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:32,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:32,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:32,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:32,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:08:32,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:32,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:08:32,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:32,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:08:32,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:32,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 18:08:32,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:32,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:32,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:32,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:32,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:32,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:08:32,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:32,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:32,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:08:32,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:32,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:32,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-24 18:08:32,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:32,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:32,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:32,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:32,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:32,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:32,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:32,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:32,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:08:32,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:32,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:32,500 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 18:08:32,501 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1898784027] [2020-09-24 18:08:32,502 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:08:32,502 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 18:08:32,503 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269092277] [2020-09-24 18:08:32,503 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 18:08:32,504 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:08:32,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 18:08:32,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-24 18:08:32,505 INFO L87 Difference]: Start difference. First operand 234 states and 250 transitions. Second operand 9 states. [2020-09-24 18:08:33,268 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 18:08:35,154 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 18:08:35,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:08:35,594 INFO L93 Difference]: Finished difference Result 599 states and 716 transitions. [2020-09-24 18:08:35,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-24 18:08:35,595 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 182 [2020-09-24 18:08:35,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:08:35,601 INFO L225 Difference]: With dead ends: 599 [2020-09-24 18:08:35,601 INFO L226 Difference]: Without dead ends: 480 [2020-09-24 18:08:35,603 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=159, Invalid=393, Unknown=0, NotChecked=0, Total=552 [2020-09-24 18:08:35,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2020-09-24 18:08:35,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 342. [2020-09-24 18:08:35,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 342 states. [2020-09-24 18:08:35,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 371 transitions. [2020-09-24 18:08:35,661 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 371 transitions. Word has length 182 [2020-09-24 18:08:35,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:08:35,661 INFO L479 AbstractCegarLoop]: Abstraction has 342 states and 371 transitions. [2020-09-24 18:08:35,661 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 18:08:35,661 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 371 transitions. [2020-09-24 18:08:35,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-09-24 18:08:35,664 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:08:35,665 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:08:35,665 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 18:08:35,665 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:08:35,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:08:35,666 INFO L82 PathProgramCache]: Analyzing trace with hash -489086187, now seen corresponding path program 1 times [2020-09-24 18:08:35,666 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:08:35,666 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1939953864] [2020-09-24 18:08:35,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:08:35,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:35,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:35,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:36,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:39,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:40,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:40,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-09-24 18:08:40,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:08:40,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-09-24 18:08:40,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:40,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:08:40,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 181 [2020-09-24 18:08:40,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-24 18:08:40,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:41,082 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:08:41,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:08:41,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:41,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:41,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:41,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:08:41,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:41,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-24 18:08:41,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:41,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:41,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:41,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:41,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:41,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 18:08:41,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:41,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:41,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:41,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:41,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:41,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:08:41,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:41,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:41,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:41,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:41,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:41,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 18:08:41,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:41,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:41,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:41,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:41,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:41,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:08:41,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:41,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:41,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:41,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:41,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:41,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 18:08:41,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:41,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:41,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:41,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:41,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:41,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:08:41,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:41,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:41,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:41,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:41,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:41,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 18:08:41,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:41,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:41,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:41,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:41,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:41,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:41,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:41,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:41,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:41,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:41,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:08:41,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 18:08:41,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:41,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:41,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:41,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:08:41,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:41,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:08:41,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:41,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:41,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:41,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:41,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:41,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 18:08:41,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:41,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:41,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:41,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:08:41,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:41,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:08:41,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:41,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:41,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:41,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:41,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:41,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 18:08:41,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:41,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:41,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:41,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 18:08:41,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:41,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:08:41,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:41,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:41,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:41,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:41,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:41,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:08:41,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:41,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:41,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:41,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:41,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:41,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:08:41,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:41,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:41,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:41,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:41,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:41,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 18:08:41,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:41,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:41,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:41,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 18:08:41,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:41,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 18:08:41,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:41,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:08:41,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:41,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 18:08:41,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:41,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:08:41,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:41,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:41,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:41,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 18:08:41,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:41,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 18:08:41,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:41,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:08:41,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:41,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 18:08:41,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:41,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 18:08:41,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:41,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:41,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:41,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 18:08:41,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:41,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:08:41,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:41,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:08:41,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:41,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:08:41,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:41,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 18:08:41,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:41,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:41,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:41,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:08:41,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:41,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:08:41,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:41,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:08:41,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:41,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:08:41,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:41,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-24 18:08:41,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:41,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:41,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:41,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:41,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:41,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:08:41,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:41,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:08:41,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:41,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:08:41,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:41,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-09-24 18:08:41,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:41,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:41,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:41,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:08:41,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:41,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:08:41,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:41,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:08:41,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:08:41,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:08:41,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:41,504 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 18:08:41,505 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1939953864] [2020-09-24 18:08:41,505 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:08:41,505 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 18:08:41,505 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935611370] [2020-09-24 18:08:41,506 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 18:08:41,507 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:08:41,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 18:08:41,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 18:08:41,507 INFO L87 Difference]: Start difference. First operand 342 states and 371 transitions. Second operand 11 states. [2020-09-24 18:08:42,117 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 18:08:43,129 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 18:08:43,477 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 18:08:44,442 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 18:08:44,826 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 18:08:45,217 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:08:45,850 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 18:08:46,176 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 18:08:46,497 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 18:08:46,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:08:46,956 INFO L93 Difference]: Finished difference Result 706 states and 833 transitions. [2020-09-24 18:08:46,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-24 18:08:46,957 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 206 [2020-09-24 18:08:46,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:08:46,962 INFO L225 Difference]: With dead ends: 706 [2020-09-24 18:08:46,962 INFO L226 Difference]: Without dead ends: 479 [2020-09-24 18:08:46,964 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=261, Invalid=669, Unknown=0, NotChecked=0, Total=930 [2020-09-24 18:08:46,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2020-09-24 18:08:47,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 341. [2020-09-24 18:08:47,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2020-09-24 18:08:47,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 368 transitions. [2020-09-24 18:08:47,016 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 368 transitions. Word has length 206 [2020-09-24 18:08:47,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:08:47,017 INFO L479 AbstractCegarLoop]: Abstraction has 341 states and 368 transitions. [2020-09-24 18:08:47,017 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 18:08:47,017 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 368 transitions. [2020-09-24 18:08:47,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-09-24 18:08:47,020 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:08:47,020 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:08:47,020 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 18:08:47,021 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:08:47,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:08:47,021 INFO L82 PathProgramCache]: Analyzing trace with hash 1682980522, now seen corresponding path program 1 times [2020-09-24 18:08:47,021 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:08:47,022 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [570059513] [2020-09-24 18:08:47,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:08:47,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:47,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:08:47,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:08:47,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-09-24 18:08:47,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:08:47,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 759 [2020-09-24 18:08:47,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:08:47,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:08:47,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 201 [2020-09-24 18:08:47,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 18:08:47,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:08:48,153 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:08:48,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:08:48,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:08:48,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking...