/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=WIDEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:57:26,563 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:57:26,567 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:57:26,615 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:57:26,616 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:57:26,626 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:57:26,629 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:57:26,633 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:57:26,636 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:57:26,641 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:57:26,642 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:57:26,643 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:57:26,643 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:57:26,646 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:57:26,648 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:57:26,649 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:57:26,652 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:57:26,653 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:57:26,655 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:57:26,661 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:57:26,664 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:57:26,665 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:57:26,667 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:57:26,668 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:57:26,672 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:57:26,673 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:57:26,673 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:57:26,676 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:57:26,677 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:57:26,679 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:57:26,679 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:57:26,680 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:57:26,681 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:57:26,682 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:57:26,683 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:57:26,683 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:57:26,684 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:57:26,684 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:57:26,685 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:57:26,686 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:57:26,687 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:57:26,688 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 02:57:26,747 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:57:26,747 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:57:26,749 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:57:26,750 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:57:26,750 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:57:26,750 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:57:26,751 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:57:26,751 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:57:26,751 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:57:26,751 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:57:26,753 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:57:26,753 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:57:26,753 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:57:26,754 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:57:26,754 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:57:26,754 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:57:26,754 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:57:26,755 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:57:26,755 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:57:26,755 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:57:26,755 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:57:26,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:57:26,756 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:57:26,756 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:57:26,756 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:57:26,756 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:57:26,756 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:57:26,757 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:57:26,757 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:57:26,757 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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;log-additional-information=true; [2020-09-25 02:57:27,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:57:27,261 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:57:27,266 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:57:27,268 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:57:27,269 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:57:27,270 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product50.cil.c [2020-09-25 02:57:27,359 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c3e08c41a/0599522f95bd4b248ec4932121c2ccaf/FLAG76301529e [2020-09-25 02:57:27,977 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:57:27,978 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product50.cil.c [2020-09-25 02:57:27,995 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c3e08c41a/0599522f95bd4b248ec4932121c2ccaf/FLAG76301529e [2020-09-25 02:57:28,244 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c3e08c41a/0599522f95bd4b248ec4932121c2ccaf [2020-09-25 02:57:28,256 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:57:28,263 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:57:28,264 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:57:28,264 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:57:28,268 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:57:28,269 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:57:28" (1/1) ... [2020-09-25 02:57:28,274 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11f53a41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:28, skipping insertion in model container [2020-09-25 02:57:28,274 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:57:28" (1/1) ... [2020-09-25 02:57:28,285 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:57:28,337 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:57:28,739 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:57:28,755 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:57:28,964 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:57:29,001 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:57:29,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:29 WrapperNode [2020-09-25 02:57:29,002 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:57:29,003 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:57:29,003 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:57:29,004 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:57:29,022 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:29" (1/1) ... [2020-09-25 02:57:29,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:29" (1/1) ... [2020-09-25 02:57:29,042 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:29" (1/1) ... [2020-09-25 02:57:29,043 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:29" (1/1) ... [2020-09-25 02:57:29,078 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:29" (1/1) ... [2020-09-25 02:57:29,090 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:29" (1/1) ... [2020-09-25 02:57:29,096 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:29" (1/1) ... [2020-09-25 02:57:29,104 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:57:29,104 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:57:29,104 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:57:29,105 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:57:29,106 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:29" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:57:29,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:57:29,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:57:29,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 02:57:29,191 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 02:57:29,191 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 02:57:29,191 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 02:57:29,192 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 02:57:29,192 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 02:57:29,193 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 02:57:29,193 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 02:57:29,193 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 02:57:29,193 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:57:29,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 02:57:29,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 02:57:29,194 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 02:57:29,195 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 02:57:29,195 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 02:57:29,195 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 02:57:29,196 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 02:57:29,196 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 02:57:29,196 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 02:57:29,196 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 02:57:29,197 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 02:57:29,197 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 02:57:29,197 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 02:57:29,198 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 02:57:29,198 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 02:57:29,198 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 02:57:29,198 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 02:57:29,199 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 02:57:29,199 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 02:57:29,199 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 02:57:29,199 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 02:57:29,199 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 02:57:29,199 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 02:57:29,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 02:57:29,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 02:57:29,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 02:57:29,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 02:57:29,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 02:57:29,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 02:57:29,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 02:57:29,201 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:57:29,201 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:57:29,201 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 02:57:29,201 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 02:57:29,201 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 02:57:29,201 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 02:57:29,202 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 02:57:29,202 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 02:57:29,202 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 02:57:29,202 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 02:57:29,203 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 02:57:29,203 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 02:57:29,203 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 02:57:29,203 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 02:57:29,204 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 02:57:29,204 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 02:57:29,204 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 02:57:29,204 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:57:29,204 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 02:57:29,204 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 02:57:29,205 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 02:57:29,205 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 02:57:29,205 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 02:57:29,205 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 02:57:29,205 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 02:57:29,206 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 02:57:29,206 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 02:57:29,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 02:57:29,207 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 02:57:29,207 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 02:57:29,208 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 02:57:29,209 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 02:57:29,209 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 02:57:29,209 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 02:57:29,209 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 02:57:29,209 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 02:57:29,209 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 02:57:29,209 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 02:57:29,210 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 02:57:29,210 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 02:57:29,211 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 02:57:29,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 02:57:29,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 02:57:29,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 02:57:29,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 02:57:29,211 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 02:57:29,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 02:57:29,212 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 02:57:29,212 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 02:57:29,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 02:57:29,212 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 02:57:29,212 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 02:57:29,213 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 02:57:29,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:57:29,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 02:57:29,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:57:30,380 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:57:30,380 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 02:57:30,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:57:30 BoogieIcfgContainer [2020-09-25 02:57:30,388 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:57:30,389 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:57:30,389 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:57:30,393 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:57:30,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:57:28" (1/3) ... [2020-09-25 02:57:30,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45f49f38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:57:30, skipping insertion in model container [2020-09-25 02:57:30,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:57:29" (2/3) ... [2020-09-25 02:57:30,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45f49f38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:57:30, skipping insertion in model container [2020-09-25 02:57:30,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:57:30" (3/3) ... [2020-09-25 02:57:30,398 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product50.cil.c [2020-09-25 02:57:30,411 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:57:30,423 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:57:30,448 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:57:30,483 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:57:30,483 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:57:30,483 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:57:30,484 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:57:30,484 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:57:30,484 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:57:30,484 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:57:30,484 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:57:30,516 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states. [2020-09-25 02:57:30,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 02:57:30,535 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:57:30,536 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:57:30,537 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:57:30,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:57:30,546 INFO L82 PathProgramCache]: Analyzing trace with hash -207772039, now seen corresponding path program 1 times [2020-09-25 02:57:30,558 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:57:30,559 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [452748710] [2020-09-25 02:57:30,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:57:30,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:31,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:31,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:33,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:34,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:35,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:35,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:35,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 02:57:35,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 02:57:35,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 02:57:35,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:35,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 02:57:35,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 02:57:35,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-09-25 02:57:35,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 13 [2020-09-25 02:57:36,665 WARN L193 SmtUtils]: Spent 478.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:57:36,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:57:36,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:36,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:37,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:37,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 02:57:37,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:37,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 316 [2020-09-25 02:57:37,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:37,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:37,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:37,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 02:57:37,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:37,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 02:57:37,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:37,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:37,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:37,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:57:37,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:37,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 02:57:37,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:37,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:37,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:37,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:57:37,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:37,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 02:57:37,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:37,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:37,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:37,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:57:37,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:37,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:57:37,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:37,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:37,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:37,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:57:37,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:37,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 02:57:37,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:37,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:37,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:37,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:37,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:37,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 02:57:37,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:37,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:37,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:37,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:57:37,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:37,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 02:57:37,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:37,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:37,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:37,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:57:37,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:37,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:57:37,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:37,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:37,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:37,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:57:37,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:37,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 02:57:37,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:37,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:37,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:37,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:57:37,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:37,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:57:37,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:37,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:37,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:37,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 02:57:37,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:37,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 02:57:37,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:37,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:37,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:37,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:37,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:37,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 02:57:37,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:37,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:57:37,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:37,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:57:37,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:37,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 02:57:37,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:37,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:37,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:37,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:37,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:37,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:57:37,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:37,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:57:37,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:57:37,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:57:37,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:37,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:57:37,348 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [452748710] [2020-09-25 02:57:37,351 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:57:37,351 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 02:57:37,352 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754419663] [2020-09-25 02:57:37,361 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 02:57:37,361 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:57:37,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 02:57:37,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 02:57:37,384 INFO L87 Difference]: Start difference. First operand 331 states. Second operand 9 states. [2020-09-25 02:57:38,149 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:57:39,408 WARN L193 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-25 02:57:40,047 WARN L193 SmtUtils]: Spent 548.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 193 [2020-09-25 02:57:40,450 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:57:40,893 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:57:41,256 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:57:42,200 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:57:42,560 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 02:57:43,232 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:57:44,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:57:44,338 INFO L93 Difference]: Finished difference Result 688 states and 826 transitions. [2020-09-25 02:57:44,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 02:57:44,340 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-09-25 02:57:44,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:57:44,365 INFO L225 Difference]: With dead ends: 688 [2020-09-25 02:57:44,365 INFO L226 Difference]: Without dead ends: 476 [2020-09-25 02:57:44,373 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2020-09-25 02:57:44,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2020-09-25 02:57:44,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 405. [2020-09-25 02:57:44,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 405 states. [2020-09-25 02:57:44,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 446 transitions. [2020-09-25 02:57:44,561 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 446 transitions. Word has length 148 [2020-09-25 02:57:44,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:57:44,565 INFO L479 AbstractCegarLoop]: Abstraction has 405 states and 446 transitions. [2020-09-25 02:57:44,565 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 02:57:44,566 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 446 transitions. [2020-09-25 02:57:44,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 02:57:44,583 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:57:44,583 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] [2020-09-25 02:57:44,585 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:57:44,586 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:57:44,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:57:44,587 INFO L82 PathProgramCache]: Analyzing trace with hash 1646053741, now seen corresponding path program 1 times [2020-09-25 02:57:44,587 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:57:44,587 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1650706663] [2020-09-25 02:57:44,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:57:44,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:44,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:45,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:45,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:46,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:49,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:49,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-09-25 02:57:49,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 02:57:49,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 02:57:49,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:49,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 02:57:49,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 02:57:49,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-09-25 02:57:49,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:49,982 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:57:49,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:57:50,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:50,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:50,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:50,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 02:57:50,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:50,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 240 [2020-09-25 02:57:50,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:50,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:50,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:50,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 02:57:50,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:50,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 02:57:50,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:50,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:50,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:50,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:57:50,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:50,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:57:50,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:50,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:50,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:50,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:57:50,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:50,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 02:57:50,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:50,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:50,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:50,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:57:50,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:50,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:57:50,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:50,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:50,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:50,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:57:50,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:50,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 02:57:50,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:50,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:50,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:50,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:50,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:50,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:57:50,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:50,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:50,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:50,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:57:50,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:50,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 02:57:50,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:50,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:50,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:50,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:57:50,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:50,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:57:50,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:50,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:50,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:50,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:57:50,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:57:50,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 02:57:50,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:50,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:50,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:50,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:57:50,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:50,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:57:50,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:50,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:50,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:50,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 02:57:50,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 27 [2020-09-25 02:57:50,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 02:57:50,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:50,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:50,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:50,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:57:50,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:50,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:57:50,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:50,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:50,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:50,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:57:50,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:50,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 02:57:50,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:50,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:50,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:50,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:57:50,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:50,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:57:50,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:50,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:50,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:50,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 02:57:50,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:50,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 02:57:50,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:50,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:50,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:50,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:50,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:50,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:57:50,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:50,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:57:50,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:50,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:57:50,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:50,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 02:57:50,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:50,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:50,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:57:50,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:57:50,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:57:50,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:57:50,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:57:50,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:57:50,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:57:50,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:57:50,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:57:50,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:57:50,529 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1650706663] [2020-09-25 02:57:50,529 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:57:50,529 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 02:57:50,530 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014182013] [2020-09-25 02:57:50,532 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 02:57:50,532 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:57:50,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 02:57:50,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 02:57:50,533 INFO L87 Difference]: Start difference. First operand 405 states and 446 transitions. Second operand 11 states. [2020-09-25 02:57:51,134 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:57:52,590 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:57:52,923 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:57:53,309 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:57:53,662 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:57:53,982 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:57:54,850 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:57:55,155 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:57:55,551 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:57:57,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:57:57,212 INFO L93 Difference]: Finished difference Result 1107 states and 1383 transitions. [2020-09-25 02:57:57,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-09-25 02:57:57,213 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 167 [2020-09-25 02:57:57,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:57:57,224 INFO L225 Difference]: With dead ends: 1107 [2020-09-25 02:57:57,224 INFO L226 Difference]: Without dead ends: 817 [2020-09-25 02:57:57,229 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=283, Invalid=773, Unknown=0, NotChecked=0, Total=1056 [2020-09-25 02:57:57,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 817 states. [2020-09-25 02:57:57,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 817 to 566. [2020-09-25 02:57:57,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 566 states. [2020-09-25 02:57:57,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 637 transitions. [2020-09-25 02:57:57,329 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 637 transitions. Word has length 167 [2020-09-25 02:57:57,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:57:57,330 INFO L479 AbstractCegarLoop]: Abstraction has 566 states and 637 transitions. [2020-09-25 02:57:57,330 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 02:57:57,330 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 637 transitions. [2020-09-25 02:57:57,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2020-09-25 02:57:57,335 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:57:57,335 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:57:57,336 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:57:57,336 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:57:57,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:57:57,336 INFO L82 PathProgramCache]: Analyzing trace with hash 90906880, now seen corresponding path program 1 times [2020-09-25 02:57:57,337 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:57:57,337 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1869178770] [2020-09-25 02:57:57,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:57:57,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:57:57,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:57,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:57,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:57,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:59,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:57:59,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:02,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:02,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 284 [2020-09-25 02:58:02,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 02:58:02,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 02:58:02,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:02,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:02,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 02:58:02,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 02:58:02,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:02,737 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:58:02,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:58:02,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:02,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:02,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:02,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 02:58:02,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:02,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-25 02:58:02,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:02,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:02,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:02,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:02,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:02,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 02:58:02,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:02,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:02,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:02,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:02,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:02,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:58:02,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:02,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:02,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:02,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:02,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:02,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 02:58:02,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:02,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:02,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:02,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:02,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:02,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:58:02,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:02,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:02,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:02,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:02,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:02,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 02:58:02,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:02,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:02,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:02,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:02,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:02,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:58:02,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:02,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:02,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:02,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:02,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:02,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 02:58:02,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:02,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:02,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:02,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:02,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:02,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:58:02,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:02,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:02,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:02,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:02,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:02,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 02:58:02,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:02,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:02,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:02,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:58:02,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:02,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:58:02,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:02,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:02,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:02,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:02,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:02,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 02:58:02,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:02,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:02,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:02,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:58:02,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:02,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:58:02,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:02,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:02,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:02,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:58:02,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:02,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 02:58:02,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:02,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:02,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:02,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:58:02,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:02,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:58:02,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:02,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:02,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:02,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 02:58:02,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:02,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 02:58:02,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:02,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:02,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:02,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 02:58:02,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:02,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:58:02,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:02,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:02,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:02,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 02:58:02,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:03,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:58:03,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:03,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:03,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:03,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 02:58:03,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:03,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:58:03,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:03,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:03,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:03,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:03,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:03,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:58:03,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:03,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:03,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:03,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:03,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:03,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:58:03,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:03,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:03,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:03,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:03,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:03,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-25 02:58:03,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:03,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:03,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:03,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:03,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 02:58:03,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:58:03,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-25 02:58:03,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:03,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:58:03,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 02:58:03,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:58:03,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:03,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:58:03,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:03,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:03,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:03,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 02:58:03,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:03,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-25 02:58:03,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:03,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:58:03,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 02:58:03,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:58:03,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:03,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:58:03,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:03,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:03,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:03,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 02:58:03,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:03,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 02:58:03,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:03,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:58:03,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:03,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 02:58:03,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:03,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:58:03,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:03,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:03,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:03,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:58:03,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:03,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 02:58:03,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:03,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:03,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:03,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:03,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:03,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 02:58:03,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:03,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:03,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:03,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:58:03,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:03,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:58:03,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:03,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:03,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 02:58:03,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:03,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:03,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-09-25 02:58:03,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:03,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:03,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:03,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:03,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:03,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:58:03,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:03,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:03,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:58:03,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:03,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:03,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2020-09-25 02:58:03,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:03,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:03,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:03,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:03,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:03,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:58:03,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:03,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:03,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:58:03,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:03,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:03,537 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 02:58:03,539 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1869178770] [2020-09-25 02:58:03,539 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:58:03,539 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-25 02:58:03,540 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263397373] [2020-09-25 02:58:03,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 02:58:03,541 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:58:03,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 02:58:03,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-09-25 02:58:03,544 INFO L87 Difference]: Start difference. First operand 566 states and 637 transitions. Second operand 14 states. [2020-09-25 02:58:04,418 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:58:05,564 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:58:05,909 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 02:58:06,271 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 02:58:06,631 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:58:06,970 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 02:58:07,285 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:58:08,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:58:08,759 INFO L93 Difference]: Finished difference Result 1414 states and 1795 transitions. [2020-09-25 02:58:08,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-09-25 02:58:08,759 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 231 [2020-09-25 02:58:08,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:58:08,776 INFO L225 Difference]: With dead ends: 1414 [2020-09-25 02:58:08,776 INFO L226 Difference]: Without dead ends: 963 [2020-09-25 02:58:08,782 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 411 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=376, Invalid=1430, Unknown=0, NotChecked=0, Total=1806 [2020-09-25 02:58:08,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2020-09-25 02:58:08,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 574. [2020-09-25 02:58:08,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 574 states. [2020-09-25 02:58:08,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 639 transitions. [2020-09-25 02:58:08,906 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 639 transitions. Word has length 231 [2020-09-25 02:58:08,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:58:08,908 INFO L479 AbstractCegarLoop]: Abstraction has 574 states and 639 transitions. [2020-09-25 02:58:08,908 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 02:58:08,908 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 639 transitions. [2020-09-25 02:58:08,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-09-25 02:58:08,911 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:58:08,911 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:58:08,912 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 02:58:08,912 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:58:08,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:58:08,912 INFO L82 PathProgramCache]: Analyzing trace with hash 1172320797, now seen corresponding path program 1 times [2020-09-25 02:58:08,912 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:58:08,913 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [406974020] [2020-09-25 02:58:08,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:58:08,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:09,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:09,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:12,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:12,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-09-25 02:58:12,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:58:12,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3279 [2020-09-25 02:58:12,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:12,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 02:58:12,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 02:58:12,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-09-25 02:58:12,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:12,600 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:58:12,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:58:12,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:12,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:12,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:12,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 02:58:12,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:12,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-25 02:58:12,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:12,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:12,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:12,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:12,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:12,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 02:58:12,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:12,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:12,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:12,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:12,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:12,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:58:12,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:12,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:12,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:12,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:12,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:12,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 02:58:12,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:12,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:12,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:12,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:12,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:12,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:58:12,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:12,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:12,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:12,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:12,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:12,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 02:58:12,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:12,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:12,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:12,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:12,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:12,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:58:12,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:12,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:12,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:12,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:12,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:12,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 02:58:12,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:12,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:12,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:12,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:58:12,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:12,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:58:12,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:12,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:12,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:12,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:12,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:12,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 02:58:12,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:12,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:12,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:12,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:58:12,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:12,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:58:12,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:12,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:12,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:12,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 02:58:12,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:12,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 02:58:12,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:12,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:12,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:12,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:58:12,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:12,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 02:58:12,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:12,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:12,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:12,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:58:12,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:12,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 02:58:12,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:12,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:12,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:12,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:58:12,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:12,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:58:12,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:12,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:12,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:12,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 02:58:12,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:12,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 02:58:12,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:12,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:12,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:12,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:12,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 02:58:12,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:58:12,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-25 02:58:12,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:12,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:12,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:12,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-25 02:58:12,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:12,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:58:12,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:12,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:12,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:13,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:13,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 02:58:13,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:58:13,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-25 02:58:13,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:13,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:58:13,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 02:58:13,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:58:13,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:13,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:58:13,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:13,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:13,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:13,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 02:58:13,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:13,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 02:58:13,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:13,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:58:13,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 02:58:13,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:58:13,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:13,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:58:13,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:13,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:13,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:13,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:58:13,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:13,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:58:13,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:13,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:58:13,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:13,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:58:13,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:58:13,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 02:58:13,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:13,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:13,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:13,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:58:13,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:13,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:58:13,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:13,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:58:13,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 02:58:13,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:58:13,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:13,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-25 02:58:13,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:13,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:13,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:13,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:13,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:13,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:58:13,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:13,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:13,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:13,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:58:13,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:13,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-25 02:58:13,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:58:13,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:58:13,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:58:13,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:58:13,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:58:13,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:58:13,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:58:13,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:58:13,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:58:13,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:58:13,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:58:13,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:58:13,279 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [406974020] [2020-09-25 02:58:13,279 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:58:13,279 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 02:58:13,279 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784477829] [2020-09-25 02:58:13,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 02:58:13,280 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:58:13,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 02:58:13,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-09-25 02:58:13,281 INFO L87 Difference]: Start difference. First operand 574 states and 639 transitions. Second operand 12 states. [2020-09-25 02:58:13,816 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:58:15,056 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 02:58:15,400 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 02:58:15,760 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 02:58:16,112 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 02:58:16,418 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 192