/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=SHALLOWEST --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_spec1_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:29:43,117 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:29:43,123 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:29:43,150 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:29:43,150 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:29:43,151 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:29:43,152 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:29:43,154 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:29:43,156 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:29:43,157 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:29:43,158 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:29:43,159 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:29:43,159 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:29:43,160 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:29:43,161 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:29:43,162 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:29:43,163 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:29:43,164 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:29:43,166 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:29:43,168 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:29:43,170 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:29:43,171 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:29:43,172 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:29:43,173 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:29:43,176 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:29:43,176 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:29:43,177 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:29:43,178 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:29:43,178 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:29:43,179 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:29:43,180 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:29:43,180 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:29:43,181 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:29:43,182 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:29:43,183 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:29:43,184 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:29:43,184 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:29:43,184 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:29:43,185 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:29:43,186 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:29:43,186 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:29:43,187 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 23:29:43,212 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:29:43,213 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:29:43,214 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:29:43,214 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:29:43,214 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:29:43,215 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:29:43,215 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:29:43,215 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:29:43,215 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:29:43,215 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:29:43,216 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:29:43,216 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:29:43,216 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:29:43,216 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:29:43,216 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:29:43,217 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:29:43,217 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:29:43,217 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:29:43,217 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:29:43,217 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:29:43,218 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:29:43,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:29:43,218 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:29:43,218 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:29:43,219 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:29:43,219 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:29:43,219 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:29:43,219 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:29:43,219 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:29:43,219 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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;log-additional-information=true; [2020-09-24 23:29:43,687 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:29:43,717 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:29:43,724 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:29:43,726 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:29:43,728 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:29:43,729 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product35.cil.c [2020-09-24 23:29:43,827 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/252ba7318/573e137c9b984710800e04e6a7b136d6/FLAG7ab7fcd08 [2020-09-24 23:29:44,397 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:29:44,398 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product35.cil.c [2020-09-24 23:29:44,414 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/252ba7318/573e137c9b984710800e04e6a7b136d6/FLAG7ab7fcd08 [2020-09-24 23:29:44,675 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/252ba7318/573e137c9b984710800e04e6a7b136d6 [2020-09-24 23:29:44,687 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:29:44,693 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:29:44,695 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:29:44,695 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:29:44,700 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:29:44,701 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:29:44" (1/1) ... [2020-09-24 23:29:44,705 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53d96e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:29:44, skipping insertion in model container [2020-09-24 23:29:44,705 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:29:44" (1/1) ... [2020-09-24 23:29:44,714 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:29:44,767 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:29:45,277 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:29:45,290 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:29:45,365 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:29:45,402 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:29:45,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:29:45 WrapperNode [2020-09-24 23:29:45,402 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:29:45,403 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:29:45,403 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:29:45,404 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:29:45,420 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:29:45" (1/1) ... [2020-09-24 23:29:45,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:29:45" (1/1) ... [2020-09-24 23:29:45,441 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:29:45" (1/1) ... [2020-09-24 23:29:45,441 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:29:45" (1/1) ... [2020-09-24 23:29:45,475 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:29:45" (1/1) ... [2020-09-24 23:29:45,486 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:29:45" (1/1) ... [2020-09-24 23:29:45,492 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:29:45" (1/1) ... [2020-09-24 23:29:45,500 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:29:45,500 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:29:45,500 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:29:45,501 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:29:45,502 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:29:45" (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 23:29:45,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:29:45,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:29:45,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 23:29:45,606 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 23:29:45,606 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 23:29:45,606 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 23:29:45,606 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 23:29:45,607 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 23:29:45,607 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 23:29:45,607 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 23:29:45,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 23:29:45,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 23:29:45,608 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 23:29:45,608 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 23:29:45,608 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 23:29:45,608 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 23:29:45,608 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 23:29:45,609 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 23:29:45,609 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 23:29:45,609 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 23:29:45,609 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 23:29:45,610 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 23:29:45,610 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 23:29:45,610 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 23:29:45,610 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 23:29:45,610 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 23:29:45,611 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 23:29:45,611 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 23:29:45,611 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 23:29:45,611 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 23:29:45,611 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 23:29:45,611 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:29:45,611 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 23:29:45,612 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 23:29:45,612 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 23:29:45,612 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 23:29:45,612 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 23:29:45,612 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 23:29:45,612 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:29:45,613 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:29:45,613 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 23:29:45,613 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 23:29:45,613 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 23:29:45,613 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 23:29:45,613 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 23:29:45,614 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 23:29:45,614 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 23:29:45,614 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 23:29:45,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 23:29:45,614 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 23:29:45,614 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 23:29:45,615 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 23:29:45,615 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 23:29:45,615 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 23:29:45,615 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 23:29:45,615 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 23:29:45,615 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 23:29:45,615 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 23:29:45,616 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 23:29:45,616 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 23:29:45,616 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 23:29:45,616 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 23:29:45,616 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 23:29:45,616 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 23:29:45,617 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 23:29:45,617 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 23:29:45,617 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 23:29:45,617 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 23:29:45,617 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 23:29:45,617 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 23:29:45,617 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:29:45,618 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 23:29:45,618 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 23:29:45,618 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 23:29:45,618 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 23:29:45,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 23:29:45,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 23:29:45,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 23:29:45,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 23:29:45,619 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 23:29:45,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 23:29:45,619 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 23:29:45,619 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 23:29:45,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 23:29:45,620 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 23:29:45,620 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 23:29:45,620 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 23:29:45,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:29:45,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 23:29:45,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:29:46,791 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:29:46,792 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 23:29:46,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:29:46 BoogieIcfgContainer [2020-09-24 23:29:46,800 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:29:46,802 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:29:46,802 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:29:46,806 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:29:46,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:29:44" (1/3) ... [2020-09-24 23:29:46,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@298e2b6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:29:46, skipping insertion in model container [2020-09-24 23:29:46,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:29:45" (2/3) ... [2020-09-24 23:29:46,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@298e2b6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:29:46, skipping insertion in model container [2020-09-24 23:29:46,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:29:46" (3/3) ... [2020-09-24 23:29:46,810 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product35.cil.c [2020-09-24 23:29:46,822 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:29:46,835 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:29:46,858 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:29:46,893 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:29:46,893 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:29:46,894 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:29:46,894 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:29:46,894 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:29:46,894 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:29:46,894 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:29:46,894 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:29:46,922 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2020-09-24 23:29:46,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 23:29:46,939 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:29:46,940 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:29:46,941 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:29:46,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:29:46,948 INFO L82 PathProgramCache]: Analyzing trace with hash 750514354, now seen corresponding path program 1 times [2020-09-24 23:29:46,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:29:46,961 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [797773894] [2020-09-24 23:29:46,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:29:47,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:29:47,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:29:47,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:29:49,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:29:50,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:29:51,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:29:52,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:29:52,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 23:29:52,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 23:29:52,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-24 23:29:52,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:29:52,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 23:29:52,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 23:29:52,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-24 23:29:52,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 23:29:52,783 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:29:52,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:29:52,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:29:52,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:29:53,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:29:53,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:29:53,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:29:53,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 263 [2020-09-24 23:29:53,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:29:53,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:29:53,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:29:53,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 23:29:53,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:29:53,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:29:53,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:29:53,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:29:53,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:29:53,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:29:53,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:29:53,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:29:53,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:29:53,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:29:53,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:29:53,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:29:53,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:29:53,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:29:53,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:29:53,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:29:53,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:29:53,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:29:53,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:29:53,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:29:53,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:29:53,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:29:53,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:29:53,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:29:53,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:29:53,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:29:53,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:29:53,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:29:53,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:29:53,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:29:53,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:29:53,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:29:53,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:29:53,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:29:53,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:29:53,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:29:53,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:29:53,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:29:53,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:29:53,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:29:53,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:29:53,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:29:53,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:29:53,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:29:53,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:29:53,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:29:53,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:29:53,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:29:53,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:29:53,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 23:29:53,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:29:53,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:29:53,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:29:53,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:29:53,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:29:53,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:29:53,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:29:53,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:29:53,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:29:53,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:29:53,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:29:53,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 23:29:53,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:29:53,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:29:53,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:29:53,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:29:53,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:29:53,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:29:53,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:29:53,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:29:53,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:29:53,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:29:53,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:29:53,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:29:53,275 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [797773894] [2020-09-24 23:29:53,277 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:29:53,277 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 23:29:53,278 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288049314] [2020-09-24 23:29:53,284 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 23:29:53,285 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:29:53,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 23:29:53,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 23:29:53,307 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 8 states. [2020-09-24 23:29:53,980 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:29:54,998 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:29:55,301 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:29:55,672 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:29:56,032 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:29:56,364 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:29:57,105 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:29:57,486 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:29:58,026 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:29:59,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:29:59,165 INFO L93 Difference]: Finished difference Result 584 states and 714 transitions. [2020-09-24 23:29:59,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 23:29:59,168 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 23:29:59,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:29:59,205 INFO L225 Difference]: With dead ends: 584 [2020-09-24 23:29:59,206 INFO L226 Difference]: Without dead ends: 391 [2020-09-24 23:29:59,212 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-24 23:29:59,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2020-09-24 23:29:59,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 337. [2020-09-24 23:29:59,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2020-09-24 23:29:59,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 371 transitions. [2020-09-24 23:29:59,356 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 371 transitions. Word has length 142 [2020-09-24 23:29:59,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:29:59,357 INFO L479 AbstractCegarLoop]: Abstraction has 337 states and 371 transitions. [2020-09-24 23:29:59,357 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 23:29:59,357 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 371 transitions. [2020-09-24 23:29:59,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-09-24 23:29:59,363 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:29:59,363 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:29:59,363 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:29:59,364 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:29:59,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:29:59,364 INFO L82 PathProgramCache]: Analyzing trace with hash 24014077, now seen corresponding path program 1 times [2020-09-24 23:29:59,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:29:59,365 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1914904828] [2020-09-24 23:29:59,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:29:59,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:29:59,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:00,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:02,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:04,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:04,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-09-24 23:30:04,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:30:04,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-24 23:30:04,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:04,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 23:30:04,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 23:30:04,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-24 23:30:04,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:04,749 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:30:04,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:30:04,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:04,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:05,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:05,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:30:05,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:05,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-09-24 23:30:05,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:05,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:05,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:05,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 23:30:05,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:05,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:30:05,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:05,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:05,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:05,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:05,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:05,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:30:05,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:05,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:05,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:05,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:30:05,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:05,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:30:05,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:05,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:05,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:05,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:05,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:05,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:30:05,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:05,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:05,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:05,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:30:05,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:05,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:30:05,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:05,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:05,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:05,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:05,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:05,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:30:05,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:05,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:05,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:05,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:30:05,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:05,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:30:05,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:05,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:05,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:05,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:05,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:05,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:30:05,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:05,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:05,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:05,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:30:05,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:05,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 23:30:05,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:05,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:05,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:05,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:30:05,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:05,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:30:05,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:05,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:05,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:05,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:30:05,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:05,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 23:30:05,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:05,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:05,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:05,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:05,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:05,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:30:05,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:05,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:05,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:05,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:30:05,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:05,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-24 23:30:05,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:05,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:05,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:05,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:05,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:05,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:30:05,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:05,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:30:05,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:05,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:30:05,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:05,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:30:05,226 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1914904828] [2020-09-24 23:30:05,226 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:30:05,227 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 23:30:05,227 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586294856] [2020-09-24 23:30:05,230 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 23:30:05,231 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:30:05,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 23:30:05,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 23:30:05,232 INFO L87 Difference]: Start difference. First operand 337 states and 371 transitions. Second operand 9 states. [2020-09-24 23:30:05,714 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:30:06,950 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:30:07,265 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:30:07,617 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:30:07,953 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:30:08,308 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:30:08,947 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:30:09,240 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:30:09,615 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:30:10,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:30:10,654 INFO L93 Difference]: Finished difference Result 814 states and 994 transitions. [2020-09-24 23:30:10,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 23:30:10,655 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 157 [2020-09-24 23:30:10,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:30:10,662 INFO L225 Difference]: With dead ends: 814 [2020-09-24 23:30:10,663 INFO L226 Difference]: Without dead ends: 587 [2020-09-24 23:30:10,666 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 23:30:10,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2020-09-24 23:30:10,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 495. [2020-09-24 23:30:10,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 495 states. [2020-09-24 23:30:10,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 575 transitions. [2020-09-24 23:30:10,762 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 575 transitions. Word has length 157 [2020-09-24 23:30:10,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:30:10,763 INFO L479 AbstractCegarLoop]: Abstraction has 495 states and 575 transitions. [2020-09-24 23:30:10,764 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 23:30:10,764 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 575 transitions. [2020-09-24 23:30:10,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-24 23:30:10,768 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:30:10,768 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:30:10,768 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:30:10,769 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:30:10,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:30:10,769 INFO L82 PathProgramCache]: Analyzing trace with hash 350443365, now seen corresponding path program 1 times [2020-09-24 23:30:10,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:30:10,769 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [546737897] [2020-09-24 23:30:10,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:30:10,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:10,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:11,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:11,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-24 23:30:11,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:11,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 800 [2020-09-24 23:30:11,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:11,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:30:11,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 179 [2020-09-24 23:30:11,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:30:11,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:11,882 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:30:11,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:30:11,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:11,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:12,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:12,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:30:12,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:12,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-24 23:30:12,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:12,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:12,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:12,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:12,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:12,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:30:12,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:12,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:12,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:12,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:12,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:12,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:30:12,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:12,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:12,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:12,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:12,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:12,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:30:12,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:12,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:12,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:12,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:12,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:12,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:30:12,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:12,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:12,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:12,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:12,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:12,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:30:12,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:12,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:12,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:12,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:12,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:12,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:30:12,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:12,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:12,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:12,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:12,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:12,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:30:12,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:12,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:12,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:12,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:12,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:12,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:30:12,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:12,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:12,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:12,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:12,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:12,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 23:30:12,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:12,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:12,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:12,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:30:12,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:12,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:30:12,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:12,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:12,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:12,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:12,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:12,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 23:30:12,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:12,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:12,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:12,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 23:30:12,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:12,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-24 23:30:12,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:12,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:30:12,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 23:30:12,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:30:12,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:12,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:30:12,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:12,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:12,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:12,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:30:12,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:12,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 23:30:12,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:12,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:30:12,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:12,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 23:30:12,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:12,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:30:12,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:12,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:12,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:12,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:30:12,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:12,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:30:12,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:12,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:12,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:12,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:12,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:12,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:30:12,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:12,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:12,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:12,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:30:12,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:12,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:30:12,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:12,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:12,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 23:30:12,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:12,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:12,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-24 23:30:12,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:12,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:12,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:12,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:12,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:12,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:30:12,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:12,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:12,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:30:12,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:12,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:12,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-24 23:30:12,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:12,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:12,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:12,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:12,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:12,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:30:12,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:12,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:12,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:30:12,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:12,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:12,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:30:12,357 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [546737897] [2020-09-24 23:30:12,357 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:30:12,358 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 23:30:12,358 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492195701] [2020-09-24 23:30:12,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 23:30:12,359 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:30:12,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 23:30:12,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 23:30:12,360 INFO L87 Difference]: Start difference. First operand 495 states and 575 transitions. Second operand 10 states. [2020-09-24 23:30:13,849 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:30:14,160 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:30:14,481 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:30:14,832 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:30:15,185 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:30:15,521 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:30:16,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:30:16,642 INFO L93 Difference]: Finished difference Result 1072 states and 1342 transitions. [2020-09-24 23:30:16,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 23:30:16,643 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 190 [2020-09-24 23:30:16,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:30:16,656 INFO L225 Difference]: With dead ends: 1072 [2020-09-24 23:30:16,656 INFO L226 Difference]: Without dead ends: 687 [2020-09-24 23:30:16,659 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-24 23:30:16,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2020-09-24 23:30:16,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 517. [2020-09-24 23:30:16,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 517 states. [2020-09-24 23:30:16,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 597 transitions. [2020-09-24 23:30:16,766 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 597 transitions. Word has length 190 [2020-09-24 23:30:16,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:30:16,767 INFO L479 AbstractCegarLoop]: Abstraction has 517 states and 597 transitions. [2020-09-24 23:30:16,767 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 23:30:16,767 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 597 transitions. [2020-09-24 23:30:16,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-09-24 23:30:16,771 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:30:16,771 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:30:16,771 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:30:16,772 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:30:16,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:30:16,772 INFO L82 PathProgramCache]: Analyzing trace with hash -1240509503, now seen corresponding path program 1 times [2020-09-24 23:30:16,772 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:30:16,772 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1288864182] [2020-09-24 23:30:16,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:30:16,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:16,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:17,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:17,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:17,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:17,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:17,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:21,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:21,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 262 [2020-09-24 23:30:21,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 23:30:21,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-09-24 23:30:21,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:21,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:30:21,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 23:30:21,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 23:30:21,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:22,252 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:30:22,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:30:22,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:22,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:22,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:22,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:30:22,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:22,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212 [2020-09-24 23:30:22,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:22,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:22,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:22,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 23:30:22,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:22,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:30:22,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:22,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:22,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:22,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:22,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:22,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:30:22,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:22,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:22,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:22,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:30:22,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:22,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:30:22,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:22,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:22,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:22,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:22,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:22,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:30:22,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:22,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:22,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:22,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:30:22,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:22,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:30:22,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:22,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:22,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:22,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:22,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:22,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 23:30:22,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:22,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:22,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:22,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:30:22,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:22,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:30:22,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:22,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:22,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:22,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:22,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:22,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:30:22,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:22,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:22,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:22,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:30:22,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:22,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 23:30:22,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:22,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:22,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:22,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:30:22,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:22,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 23:30:22,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:22,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:22,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:22,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:30:22,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:22,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 23:30:22,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:22,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:22,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:22,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:30:22,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:22,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:30:22,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:22,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:22,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 23:30:22,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 23:30:22,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:22,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:30:22,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:22,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:22,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:22,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 23:30:22,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:22,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:30:22,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:22,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:22,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:22,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 23:30:22,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:22,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:30:22,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:22,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:22,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:22,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:22,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:22,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:30:22,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:22,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:22,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:22,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:22,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:22,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-24 23:30:22,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:22,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:22,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:22,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:22,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 23:30:22,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:30:22,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-24 23:30:22,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:22,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:30:22,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 23:30:22,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:30:22,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:22,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:30:22,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:22,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:22,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:22,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:30:22,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:22,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 23:30:22,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:22,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:30:22,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:30:22,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:30:22,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:22,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:30:22,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:22,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:22,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:22,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:30:22,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:22,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:30:22,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:22,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:30:22,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:22,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:30:22,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:22,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:30:22,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:22,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:22,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:22,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:30:22,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:22,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:30:22,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:22,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:22,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 23:30:22,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:22,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:22,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-09-24 23:30:22,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:22,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:22,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:22,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:22,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:22,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:30:22,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:22,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:22,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:30:22,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:22,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:22,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-09-24 23:30:22,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:22,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:22,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:22,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:22,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:22,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:30:22,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:22,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:22,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:30:22,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:22,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:22,963 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 23:30:22,964 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1288864182] [2020-09-24 23:30:22,964 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:30:22,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-24 23:30:22,964 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684222723] [2020-09-24 23:30:22,965 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 23:30:22,965 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:30:22,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 23:30:22,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-09-24 23:30:22,966 INFO L87 Difference]: Start difference. First operand 517 states and 597 transitions. Second operand 12 states. [2020-09-24 23:30:23,486 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:30:24,468 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:30:24,877 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:30:25,211 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:30:25,578 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:30:25,942 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:30:26,260 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:30:26,652 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:30:26,983 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:30:27,359 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:30:27,770 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:30:28,114 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:30:30,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:30:30,622 INFO L93 Difference]: Finished difference Result 1797 states and 2386 transitions. [2020-09-24 23:30:30,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-24 23:30:30,622 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 215 [2020-09-24 23:30:30,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:30:30,633 INFO L225 Difference]: With dead ends: 1797 [2020-09-24 23:30:30,633 INFO L226 Difference]: Without dead ends: 1390 [2020-09-24 23:30:30,636 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=285, Invalid=905, Unknown=0, NotChecked=0, Total=1190 [2020-09-24 23:30:30,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1390 states. [2020-09-24 23:30:30,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1390 to 917. [2020-09-24 23:30:30,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 917 states. [2020-09-24 23:30:30,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1068 transitions. [2020-09-24 23:30:30,790 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1068 transitions. Word has length 215 [2020-09-24 23:30:30,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:30:30,790 INFO L479 AbstractCegarLoop]: Abstraction has 917 states and 1068 transitions. [2020-09-24 23:30:30,790 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 23:30:30,790 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1068 transitions. [2020-09-24 23:30:30,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-24 23:30:30,794 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:30:30,794 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:30:30,795 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 23:30:30,795 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:30:30,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:30:30,795 INFO L82 PathProgramCache]: Analyzing trace with hash -863448728, now seen corresponding path program 1 times [2020-09-24 23:30:30,795 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:30:30,796 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [117898151] [2020-09-24 23:30:30,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:30:30,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:30,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:32,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:32,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-24 23:30:32,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:32,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1308 [2020-09-24 23:30:32,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:32,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 23:30:32,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 23:30:32,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-09-24 23:30:32,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:32,431 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:30:32,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:30:32,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:32,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:32,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:32,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:30:32,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:32,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-09-24 23:30:32,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:32,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:32,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:32,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 23:30:32,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:32,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:30:32,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:32,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:32,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:32,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:32,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:32,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:30:32,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:32,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:32,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:32,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:30:32,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:30:32,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:30:32,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:32,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:32,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:32,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:32,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:32,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:30:32,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:32,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:32,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:32,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:30:32,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:32,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:30:32,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:32,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:32,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:32,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:32,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:32,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 23:30:32,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:32,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:32,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:32,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:30:32,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:32,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:30:32,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:32,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:32,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:32,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:30:32,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:32,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:30:32,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:32,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:32,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:32,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:30:32,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:32,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 23:30:32,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:32,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:32,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:32,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:30:32,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:32,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:30:32,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:32,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:32,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:32,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:30:32,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:32,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 23:30:32,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:32,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:32,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:32,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 23:30:32,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:32,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 23:30:32,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:32,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:32,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 23:30:32,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-24 23:30:32,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:32,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:30:32,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:32,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:32,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:32,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:30:32,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:32,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 23:30:32,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:32,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:32,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:32,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:30:32,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:32,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:30:32,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:32,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:32,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:32,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:30:32,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:32,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:30:32,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:32,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:32,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:32,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 23:30:32,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:32,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:30:32,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:32,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:32,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:32,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:30:32,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:32,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:30:32,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:32,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:30:32,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:30:32,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:30:32,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:32,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-24 23:30:32,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:32,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:32,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:32,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:32,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:32,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:30:32,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:32,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:32,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:30:32,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:32,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:32,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-24 23:30:32,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:32,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:32,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:32,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:30:32,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:30:32,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:30:32,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:32,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:30:32,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:30:32,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:30:32,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:30:33,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:30:33,062 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [117898151] [2020-09-24 23:30:33,062 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:30:33,063 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 23:30:33,063 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063149696] [2020-09-24 23:30:33,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 23:30:33,064 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:30:33,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 23:30:33,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 23:30:33,066 INFO L87 Difference]: Start difference. First operand 917 states and 1068 transitions. Second operand 7 states. [2020-09-24 23:30:33,594 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:30:34,209 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186