/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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_spec4_product27.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 12:06:20,627 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 12:06:20,631 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 12:06:20,671 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 12:06:20,672 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 12:06:20,680 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 12:06:20,682 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 12:06:20,686 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 12:06:20,689 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 12:06:20,692 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 12:06:20,693 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 12:06:20,695 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 12:06:20,695 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 12:06:20,698 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 12:06:20,702 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 12:06:20,704 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 12:06:20,706 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 12:06:20,708 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 12:06:20,709 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 12:06:20,720 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 12:06:20,722 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 12:06:20,723 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 12:06:20,724 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 12:06:20,725 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 12:06:20,736 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 12:06:20,736 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 12:06:20,736 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 12:06:20,740 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 12:06:20,740 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 12:06:20,743 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 12:06:20,743 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 12:06:20,744 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 12:06:20,745 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 12:06:20,746 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 12:06:20,747 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 12:06:20,747 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 12:06:20,748 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 12:06:20,748 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 12:06:20,749 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 12:06:20,750 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 12:06:20,751 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 12:06:20,752 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 12:06:20,799 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 12:06:20,799 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 12:06:20,801 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 12:06:20,801 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 12:06:20,801 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 12:06:20,801 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 12:06:20,802 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 12:06:20,802 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 12:06:20,802 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 12:06:20,802 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 12:06:20,802 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 12:06:20,803 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 12:06:20,803 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 12:06:20,803 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 12:06:20,803 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 12:06:20,803 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 12:06:20,804 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 12:06:20,804 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 12:06:20,804 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 12:06:20,804 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 12:06:20,804 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 12:06:20,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:06:20,805 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 12:06:20,805 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 12:06:20,805 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 12:06:20,805 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 12:06:20,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 12:06:20,806 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 12:06:20,806 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 12:06:20,806 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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; [2020-09-25 12:06:21,234 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 12:06:21,259 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 12:06:21,265 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 12:06:21,266 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 12:06:21,266 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 12:06:21,267 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product27.cil.c [2020-09-25 12:06:21,357 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e5fb1aaea/2443e204eb9a44b5943cc260438882a6/FLAG492faff64 [2020-09-25 12:06:22,003 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 12:06:22,004 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product27.cil.c [2020-09-25 12:06:22,025 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e5fb1aaea/2443e204eb9a44b5943cc260438882a6/FLAG492faff64 [2020-09-25 12:06:22,242 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e5fb1aaea/2443e204eb9a44b5943cc260438882a6 [2020-09-25 12:06:22,254 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 12:06:22,260 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 12:06:22,261 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 12:06:22,261 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 12:06:22,265 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 12:06:22,267 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:06:22" (1/1) ... [2020-09-25 12:06:22,271 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e33fb78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:22, skipping insertion in model container [2020-09-25 12:06:22,271 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:06:22" (1/1) ... [2020-09-25 12:06:22,281 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 12:06:22,352 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 12:06:22,846 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:06:22,869 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 12:06:22,953 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:06:23,000 INFO L208 MainTranslator]: Completed translation [2020-09-25 12:06:23,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:23 WrapperNode [2020-09-25 12:06:23,001 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 12:06:23,002 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 12:06:23,002 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 12:06:23,002 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 12:06:23,021 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:23" (1/1) ... [2020-09-25 12:06:23,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:23" (1/1) ... [2020-09-25 12:06:23,048 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:23" (1/1) ... [2020-09-25 12:06:23,049 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:23" (1/1) ... [2020-09-25 12:06:23,082 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:23" (1/1) ... [2020-09-25 12:06:23,093 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:23" (1/1) ... [2020-09-25 12:06:23,099 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:23" (1/1) ... [2020-09-25 12:06:23,108 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 12:06:23,109 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 12:06:23,109 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 12:06:23,109 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 12:06:23,111 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:23" (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 12:06:23,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 12:06:23,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 12:06:23,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 12:06:23,206 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 12:06:23,206 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 12:06:23,206 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 12:06:23,207 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 12:06:23,207 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 12:06:23,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 12:06:23,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 12:06:23,207 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 12:06:23,208 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 12:06:23,208 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 12:06:23,208 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 12:06:23,208 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 12:06:23,209 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 12:06:23,209 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 12:06:23,209 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 12:06:23,209 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 12:06:23,210 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 12:06:23,210 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 12:06:23,210 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 12:06:23,210 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 12:06:23,210 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 12:06:23,210 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 12:06:23,211 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 12:06:23,211 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 12:06:23,211 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 12:06:23,211 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 12:06:23,211 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 12:06:23,212 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 12:06:23,212 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 12:06:23,212 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 12:06:23,212 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 12:06:23,212 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 12:06:23,212 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 12:06:23,212 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 12:06:23,213 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 12:06:23,213 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 12:06:23,213 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 12:06:23,213 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 12:06:23,213 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 12:06:23,214 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 12:06:23,214 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 12:06:23,214 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 12:06:23,214 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 12:06:23,214 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 12:06:23,214 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 12:06:23,215 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 12:06:23,215 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 12:06:23,215 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 12:06:23,215 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 12:06:23,215 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 12:06:23,215 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 12:06:23,216 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 12:06:23,216 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 12:06:23,216 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 12:06:23,216 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 12:06:23,216 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 12:06:23,216 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 12:06:23,216 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 12:06:23,217 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 12:06:23,217 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 12:06:23,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 12:06:23,217 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 12:06:23,217 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 12:06:23,217 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 12:06:23,218 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 12:06:23,218 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 12:06:23,218 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 12:06:23,218 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 12:06:23,218 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 12:06:23,218 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 12:06:23,219 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 12:06:23,219 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 12:06:23,219 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 12:06:23,219 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 12:06:23,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 12:06:23,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 12:06:23,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 12:06:23,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 12:06:23,220 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 12:06:23,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 12:06:23,220 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 12:06:23,220 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 12:06:23,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 12:06:23,221 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 12:06:23,221 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 12:06:23,221 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 12:06:23,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 12:06:23,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 12:06:23,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 12:06:24,396 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 12:06:24,396 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 12:06:24,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:06:24 BoogieIcfgContainer [2020-09-25 12:06:24,404 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 12:06:24,405 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 12:06:24,405 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 12:06:24,409 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 12:06:24,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:06:22" (1/3) ... [2020-09-25 12:06:24,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@441bf50f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:06:24, skipping insertion in model container [2020-09-25 12:06:24,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:23" (2/3) ... [2020-09-25 12:06:24,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@441bf50f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:06:24, skipping insertion in model container [2020-09-25 12:06:24,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:06:24" (3/3) ... [2020-09-25 12:06:24,414 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product27.cil.c [2020-09-25 12:06:24,426 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 12:06:24,438 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 12:06:24,461 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 12:06:24,493 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 12:06:24,493 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 12:06:24,493 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 12:06:24,493 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 12:06:24,494 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 12:06:24,494 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 12:06:24,494 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 12:06:24,494 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 12:06:24,518 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states. [2020-09-25 12:06:24,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 12:06:24,536 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:06:24,538 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:06:24,538 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:06:24,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:06:24,545 INFO L82 PathProgramCache]: Analyzing trace with hash 2005054536, now seen corresponding path program 1 times [2020-09-25 12:06:24,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:06:24,557 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1093479380] [2020-09-25 12:06:24,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:06:24,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:25,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:25,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:26,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:27,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:29,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:29,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 12:06:29,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:06:29,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 12:06:29,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:29,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:29,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:06:29,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 12:06:29,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-25 12:06:29,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 12:06:30,378 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:06:30,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:06:30,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:30,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:30,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:30,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:06:30,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:30,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 338 [2020-09-25 12:06:30,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:30,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:30,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:30,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:30,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 12:06:30,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:30,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:06:30,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:30,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:30,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:30,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:30,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:30,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 12:06:30,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:30,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:30,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:30,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:30,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:06:30,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:06:30,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:06:30,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:30,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:30,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:30,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:30,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:30,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:06:30,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:30,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:30,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:30,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:30,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:06:30,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:30,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:06:30,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:30,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:30,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:30,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:06:30,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:30,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 12:06:30,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:30,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:30,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:30,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:30,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:06:30,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:30,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:06:30,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:30,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:30,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:30,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:30,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:30,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:06:30,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:30,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:30,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:30,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:30,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:06:30,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:30,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 12:06:30,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:30,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:30,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:30,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:06:30,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:30,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:06:30,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:30,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:30,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:06:30,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:06:30,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:06:30,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:30,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 12:06:30,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:30,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:30,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:30,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:06:30,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:30,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:06:30,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:30,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:30,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:06:30,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:06:30,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:06:30,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:06:31,053 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 12:06:31,054 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1093479380] [2020-09-25 12:06:31,057 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:06:31,058 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 12:06:31,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573456295] [2020-09-25 12:06:31,068 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 12:06:31,068 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:06:31,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 12:06:31,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 12:06:31,099 INFO L87 Difference]: Start difference. First operand 281 states. Second operand 4 states. [2020-09-25 12:06:31,878 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:06:33,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:06:33,800 INFO L93 Difference]: Finished difference Result 577 states and 706 transitions. [2020-09-25 12:06:33,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 12:06:33,802 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-25 12:06:33,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:06:33,826 INFO L225 Difference]: With dead ends: 577 [2020-09-25 12:06:33,826 INFO L226 Difference]: Without dead ends: 407 [2020-09-25 12:06:33,832 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 12:06:33,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2020-09-25 12:06:33,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 344. [2020-09-25 12:06:34,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2020-09-25 12:06:34,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 383 transitions. [2020-09-25 12:06:34,010 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 383 transitions. Word has length 142 [2020-09-25 12:06:34,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:06:34,012 INFO L479 AbstractCegarLoop]: Abstraction has 344 states and 383 transitions. [2020-09-25 12:06:34,012 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 12:06:34,012 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 383 transitions. [2020-09-25 12:06:34,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-09-25 12:06:34,024 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:06:34,025 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] [2020-09-25 12:06:34,025 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 12:06:34,025 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:06:34,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:06:34,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1655249664, now seen corresponding path program 1 times [2020-09-25 12:06:34,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:06:34,027 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [917174387] [2020-09-25 12:06:34,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:06:34,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:34,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:34,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:35,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:35,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:39,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:39,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 12:06:39,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:06:39,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-09-25 12:06:39,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:39,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:39,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 12:06:39,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 12:06:39,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-09-25 12:06:39,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:39,507 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:06:39,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:06:39,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:39,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:39,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:39,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:06:39,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:39,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-09-25 12:06:39,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:39,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:39,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:39,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:39,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 12:06:39,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:39,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:06:39,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:39,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:39,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:39,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:39,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:39,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 12:06:39,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:39,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:39,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:39,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:39,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:06:39,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:39,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:06:39,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:39,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:39,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:39,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:39,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:39,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:06:39,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:39,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:39,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:39,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:39,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:06:39,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:39,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:06:39,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:39,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:39,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:39,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:06:39,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:39,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:06:39,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:39,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:39,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:39,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:39,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:06:39,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:39,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:06:39,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:39,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:39,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:39,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:39,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:39,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:06:39,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:39,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:39,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:39,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:39,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:06:39,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:39,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 12:06:39,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:39,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:39,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:39,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:06:39,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:39,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:06:39,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:39,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:39,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:39,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:39,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 12:06:39,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:39,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:06:39,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:39,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:39,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:39,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:39,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:39,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:06:39,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:39,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:39,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:06:39,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:39,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:06:39,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:39,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 12:06:39,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:39,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:39,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:39,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:06:39,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:39,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:06:39,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:39,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:39,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:06:39,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:39,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:06:39,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:39,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 12:06:39,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:39,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:39,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:39,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:06:39,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:39,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:06:39,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:39,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:39,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:06:39,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:06:39,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:06:39,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:06:40,007 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 12:06:40,008 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [917174387] [2020-09-25 12:06:40,008 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:06:40,008 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 12:06:40,009 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436650930] [2020-09-25 12:06:40,012 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 12:06:40,012 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:06:40,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 12:06:40,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 12:06:40,013 INFO L87 Difference]: Start difference. First operand 344 states and 383 transitions. Second operand 9 states. [2020-09-25 12:06:40,602 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:06:42,003 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:06:42,389 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:06:42,839 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:06:43,218 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 12:06:43,534 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:06:43,853 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:06:44,166 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 12:06:45,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:06:45,562 INFO L93 Difference]: Finished difference Result 976 states and 1240 transitions. [2020-09-25 12:06:45,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 12:06:45,563 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 151 [2020-09-25 12:06:45,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:06:45,572 INFO L225 Difference]: With dead ends: 976 [2020-09-25 12:06:45,572 INFO L226 Difference]: Without dead ends: 742 [2020-09-25 12:06:45,576 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-25 12:06:45,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2020-09-25 12:06:45,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 565. [2020-09-25 12:06:45,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 565 states. [2020-09-25 12:06:45,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 657 transitions. [2020-09-25 12:06:45,682 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 657 transitions. Word has length 151 [2020-09-25 12:06:45,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:06:45,683 INFO L479 AbstractCegarLoop]: Abstraction has 565 states and 657 transitions. [2020-09-25 12:06:45,684 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 12:06:45,684 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 657 transitions. [2020-09-25 12:06:45,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 12:06:45,687 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:06:45,687 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] [2020-09-25 12:06:45,687 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 12:06:45,688 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:06:45,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:06:45,688 INFO L82 PathProgramCache]: Analyzing trace with hash -104151563, now seen corresponding path program 1 times [2020-09-25 12:06:45,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:06:45,689 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [929303879] [2020-09-25 12:06:45,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:06:45,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:45,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:45,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:46,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:50,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:50,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-25 12:06:50,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:06:50,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-09-25 12:06:50,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:50,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:50,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 12:06:50,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 12:06:50,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 12:06:50,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:51,097 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:06:51,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:06:51,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:51,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:51,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:51,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:06:51,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:51,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-09-25 12:06:51,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:51,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:51,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:51,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:51,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 12:06:51,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:51,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:06:51,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:51,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:51,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:51,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:51,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:51,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:06:51,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:51,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:51,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:51,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:51,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:06:51,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:51,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:06:51,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:51,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:51,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:51,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:51,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:51,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:06:51,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:51,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:51,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:51,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:51,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:06:51,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:51,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:06:51,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:51,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:51,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:51,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:06:51,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:51,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:06:51,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:51,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:51,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:51,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:51,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:06:51,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:51,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:06:51,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:51,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:51,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:51,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:51,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:51,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:06:51,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:51,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:51,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:51,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:51,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:06:51,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:51,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 12:06:51,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:51,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:51,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:51,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:06:51,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:51,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:06:51,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:51,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:51,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:06:51,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 12:06:51,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:06:51,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:51,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 12:06:51,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:51,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:51,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:51,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:06:51,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:51,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:06:51,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:51,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:51,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:06:51,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 12:06:51,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:06:51,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:51,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:06:51,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:51,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:51,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:51,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:51,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:51,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:06:51,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:51,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:51,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:06:51,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:51,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:06:51,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:51,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 12:06:51,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:51,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:51,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:51,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:06:51,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:51,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:06:51,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:51,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:51,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:06:51,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:06:51,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:06:51,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:51,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 12:06:51,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:51,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:51,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:51,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:06:51,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:51,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:06:51,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:51,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:51,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:06:51,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 12:06:51,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:06:51,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:51,539 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 12:06:51,540 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [929303879] [2020-09-25 12:06:51,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:06:51,540 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 12:06:51,540 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868260288] [2020-09-25 12:06:51,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 12:06:51,542 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:06:51,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 12:06:51,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 12:06:51,543 INFO L87 Difference]: Start difference. First operand 565 states and 657 transitions. Second operand 6 states. [2020-09-25 12:06:52,044 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:06:52,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:06:52,788 INFO L93 Difference]: Finished difference Result 891 states and 1084 transitions. [2020-09-25 12:06:52,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 12:06:52,789 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 156 [2020-09-25 12:06:52,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:06:52,792 INFO L225 Difference]: With dead ends: 891 [2020-09-25 12:06:52,792 INFO L226 Difference]: Without dead ends: 415 [2020-09-25 12:06:52,795 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-25 12:06:52,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2020-09-25 12:06:52,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 389. [2020-09-25 12:06:52,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 389 states. [2020-09-25 12:06:52,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 424 transitions. [2020-09-25 12:06:52,843 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 424 transitions. Word has length 156 [2020-09-25 12:06:52,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:06:52,843 INFO L479 AbstractCegarLoop]: Abstraction has 389 states and 424 transitions. [2020-09-25 12:06:52,843 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 12:06:52,844 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 424 transitions. [2020-09-25 12:06:52,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-25 12:06:52,846 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:06:52,846 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] [2020-09-25 12:06:52,846 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 12:06:52,846 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:06:52,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:06:52,847 INFO L82 PathProgramCache]: Analyzing trace with hash 653831882, now seen corresponding path program 1 times [2020-09-25 12:06:52,847 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:06:52,847 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1382086553] [2020-09-25 12:06:52,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:06:52,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:52,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:54,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:54,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:54,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:57,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:57,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 12:06:57,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:06:57,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 12:06:57,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:57,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:57,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 12:06:57,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 12:06:57,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-09-25 12:06:57,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:58,280 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 12:06:58,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:06:58,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:58,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:58,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:58,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:06:58,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:58,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-09-25 12:06:58,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:58,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:58,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:58,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:58,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 12:06:58,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:58,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 12:06:58,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:58,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:58,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:58,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:58,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:58,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:06:58,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:58,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:58,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:58,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:58,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:06:58,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:58,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 12:06:58,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:58,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:58,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:58,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:58,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:58,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:06:58,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:58,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:58,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:58,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:58,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:06:58,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:58,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 12:06:58,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:58,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:58,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:58,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:06:58,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:58,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 12:06:58,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:58,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:58,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:58,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:58,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:06:58,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:58,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 12:06:58,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:58,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:58,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:58,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:58,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:58,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:06:58,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:58,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:58,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:58,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:58,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:06:58,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:58,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 12:06:58,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:58,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:58,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:58,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:06:58,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:58,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:06:58,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:58,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:58,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:58,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:58,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 12:06:58,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:58,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 12:06:58,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:58,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:58,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:58,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:58,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:06:58,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:06:58,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 12:06:58,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:58,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:58,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:06:58,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:06:58,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 12:06:58,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:58,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:06:58,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:58,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:58,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:58,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:06:58,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:58,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:06:58,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:58,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:58,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:58,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:58,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:06:58,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:58,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-25 12:06:58,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:58,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:58,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:58,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:06:58,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:58,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:06:58,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:58,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:58,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:06:58,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:58,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:06:58,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:58,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 12:06:58,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:06:58,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:06:58,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:06:58,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:06:58,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:06:58,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 12:06:58,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:06:58,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:06:58,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:06:58,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:06:58,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:06:58,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:06:58,845 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 12:06:58,845 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1382086553] [2020-09-25 12:06:58,845 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:06:58,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 12:06:58,846 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818930068] [2020-09-25 12:06:58,846 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 12:06:58,847 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:06:58,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 12:06:58,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 12:06:58,847 INFO L87 Difference]: Start difference. First operand 389 states and 424 transitions. Second operand 10 states. [2020-09-25 12:06:59,373 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:07:00,666 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:01,028 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 12:07:01,353 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:01,690 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 12:07:02,004 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 12:07:02,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:07:02,219 INFO L93 Difference]: Finished difference Result 415 states and 458 transitions. [2020-09-25 12:07:02,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 12:07:02,220 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 165 [2020-09-25 12:07:02,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:07:02,221 INFO L225 Difference]: With dead ends: 415 [2020-09-25 12:07:02,221 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 12:07:02,223 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-25 12:07:02,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 12:07:02,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 12:07:02,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 12:07:02,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 12:07:02,224 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 165 [2020-09-25 12:07:02,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:07:02,225 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 12:07:02,225 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 12:07:02,225 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 12:07:02,225 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 12:07:02,225 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 12:07:02,228 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 12:07:02,450 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:02,618 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:02,781 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:02,937 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:07:03,105 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:03,492 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 12:07:03,823 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 12:07:04,173 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 12:07:04,526 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 12:07:04,689 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:07:04,857 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:05,017 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:05,174 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:05,336 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:05,486 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:07:05,788 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 7 [2020-09-25 12:07:06,107 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 12:07:06,265 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:07:06,413 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:07:06,568 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:06,888 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 12:07:07,042 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:07,190 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 12:07:07,515 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 12:07:07,835 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 12:07:08,164 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 12:07:08,491 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 12:07:08,661 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:08,983 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-25 12:07:09,141 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 12:07:09,297 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:09,451 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 12:07:09,600 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187